Vulnerabilites related to apereo - opencast
Vulnerability from fkie_nvd
Published
2021-06-16 00:15
Modified
2024-11-21 06:07
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Opencast is a free and open source solution for automated video capture and distribution. Versions of Opencast prior to 9.6 are vulnerable to the billion laughs attack, which allows an attacker to easily execute a (seemingly permanent) denial of service attack, essentially taking down Opencast using a single HTTP request. To exploit this, users need to have ingest privileges, limiting the group of potential attackers The problem has been fixed in Opencast 9.6. There is no known workaround for this issue.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| security-advisories@github.com | https://github.com/opencast/opencast/commit/8ae27da5a6f658011a5741b3210e715b0dc6213e | Patch, Third Party Advisory | |
| security-advisories@github.com | https://github.com/opencast/opencast/security/advisories/GHSA-9gwx-9cwp-5c2m | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/opencast/opencast/commit/8ae27da5a6f658011a5741b3210e715b0dc6213e | Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/opencast/opencast/security/advisories/GHSA-9gwx-9cwp-5c2m | Exploit, Third Party Advisory |
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Vulnerability from fkie_nvd
Published
2021-02-18 18:15
Modified
2024-11-21 05:48
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Summary
Opencast is a free, open-source platform to support the management of educational audio and video content. In Opencast before version 9.2 there is a vulnerability in which publishing an episode with strict access rules will overwrite the currently set series access. This allows for an easy denial of access for all users without superuser privileges, effectively hiding the series. Access to series and series metadata on the search service (shown in media module and player) depends on the events published which are part of the series. Publishing an event will automatically publish a series and update access to it. Removing an event or republishing the event should do the same. Affected versions of Opencast may not update the series access or remove a published series if an event is being removed. On removal of an episode, this may lead to an access control list for series metadata with broader access rules than the merged access rules of all remaining events, or the series metadata still being available although all episodes of that series have been removed. This problem is fixed in Opencast 9.2.
References
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Vulnerability from fkie_nvd
Published
2023-12-12 17:15
Modified
2025-05-27 15:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
An issue was discovered in Apereo Opencast 4.x through 10.x before 10.6. It sends system digest credentials during authentication attempts to arbitrary external services in some situations.
References
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"id": "CVE-2018-16153",
"lastModified": "2025-05-27T15:15:23.650",
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"lang": "en",
"value": "CWE-522"
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Vulnerability from fkie_nvd
Published
2017-11-17 22:29
Modified
2025-04-20 01:37
Severity ?
Summary
In Opencast 2.2.3 and older if user names overlap, the Opencast search service used for publication to the media modules and players will handle the access control incorrectly so that users only need to match part of the user name used for the access restriction. For example, a user with the role ROLE_USER will have access to recordings published only for ROLE_USER_X.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://opencast.jira.com/browse/MH-11862 | Exploit, Issue Tracking, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://opencast.jira.com/browse/MH-11862 | Exploit, Issue Tracking, Vendor Advisory |
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"id": "CVE-2017-1000221",
"lastModified": "2025-04-20T01:37:25.860",
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"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2017-11-17T22:29:00.363",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://opencast.jira.com/browse/MH-11862"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://opencast.jira.com/browse/MH-11862"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-732"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2020-01-30 21:15
Modified
2024-11-21 05:33
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key. This means that an attacker getting access to a remember-me token for one server can get access to all servers which allow log-in using the same credentials without ever needing the credentials. This problem is fixed in Opencast 7.6 and Opencast 8.1
References
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},
{
"lang": "es",
"value": "Opencast versiones anteriores a 7.6 y 8.1, habilita una cookie remember-me basada en un hash creado a partir del nombre de usuario, contrase\u00f1a y una clave de sistema adicional. Esto significa que un atacante que obtiene acceso a un token remember-me para un servidor puede obtener acceso a todos los servidores que permiten el inicio de sesi\u00f3n con las mismas credenciales sin necesidad alguna de las credenciales. Este problema se corrigi\u00f3 en Opencast versi\u00f3n 7.6 y Opencast versi\u00f3n 8.1."
}
],
"id": "CVE-2020-5222",
"lastModified": "2024-11-21T05:33:42.567",
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"impactScore": 4.0,
"source": "security-advisories@github.com",
"type": "Secondary"
},
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"published": "2020-01-30T21:15:14.980",
"references": [
{
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"tags": [
"Patch"
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"url": "https://github.com/opencast/opencast/commit/1a7172c95af8d542a77ae5b153e4c834dd4788a6"
},
{
"source": "security-advisories@github.com",
"tags": [
"Mitigation",
"Third Party Advisory"
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"url": "https://github.com/opencast/opencast/security/advisories/GHSA-mh8g-hprg-8363"
},
{
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"url": "https://github.com/opencast/opencast/commit/1a7172c95af8d542a77ae5b153e4c834dd4788a6"
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}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-798"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-798"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2020-12-08 23:15
Modified
2024-11-21 05:19
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
4.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Summary
Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate.
References
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"versionEndExcluding": "7.9",
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"value": "Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast\u0027s HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate."
},
{
"lang": "es",
"value": "Opencast versiones anteriores a 8.9 y 7.9, deshabilita la verificaci\u00f3n del nombre de host HTTPS de su cliente HTTP utilizado para una gran parte de las peticiones HTTP de Opencast.\u0026#xa0;La verificaci\u00f3n del nombre de host es una parte importante cuando se usa HTTPS para garantizar que el certificado presentado sea v\u00e1lido para el host.\u0026#xa0;Deshabilitarlo puede permitir ataques de tipo man-in-the-middle.\u0026#xa0;Este problema se corrigi\u00f3 en Opencast versi\u00f3n 7.9 y Opencast versi\u00f3n 8.8. Tome en cuenta que corregir el problema significa que Opencast ya no aceptar\u00e1 ning\u00fan certificado autofirmado sin importarlo apropiadamente.\u0026#xa0;Si los necesita, aseg\u00farese de importarlos al almac\u00e9n de claves de Java.\u0026#xa0;Mejor a\u00fan, obtenga un certificado v\u00e1lido"
}
],
"id": "CVE-2020-26234",
"lastModified": "2024-11-21T05:19:36.803",
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"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:H/Au:S/C:N/I:P/A:N",
"version": "2.0"
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"obtainAllPrivilege": false,
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"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.2,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
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"version": "3.1"
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"impactScore": 3.6,
"source": "nvd@nist.gov",
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]
},
"published": "2020-12-08T23:15:12.060",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc"
},
{
"source": "security-advisories@github.com",
"tags": [
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],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6"
},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
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"url": "https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc"
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"tags": [
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"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "CWE-346"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-346"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2020-01-30 22:15
Modified
2024-11-21 05:33
Severity ?
8.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Summary
In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1
References
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"versionEndExcluding": "7.6",
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"matchCriteriaId": "4A82AABB-ACF6-4017-99E8-4DA90CE416D7",
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}
],
"negate": false,
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],
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"value": "In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1"
},
{
"lang": "es",
"value": "En Opencast versiones anteriores a 7.6 y 8.1, usando una cookie remember-me con un nombre de usuario arbitrario puede causar que Opencast asuma una autenticaci\u00f3n apropiada para ese usuario, inclusive si la cookie remember-me era incorrecta, dado que el endpoint atacado tambi\u00e9n permite el acceso an\u00f3nimo. De esta forma, un atacante puede, por ejemplo, falsificar un token de remember-me, asumir la identidad del administrador del sistema global y solicitar contenido no p\u00fablico desde el servicio de b\u00fasqueda sin proporcionar una autenticaci\u00f3n adecuada. Este problema se corrigi\u00f3 en Opencast versi\u00f3n 7.6 y Opencast versi\u00f3n 8.1."
}
],
"id": "CVE-2020-5206",
"lastModified": "2024-11-21T05:33:40.690",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.3,
"impactScore": 5.8,
"source": "security-advisories@github.com",
"type": "Secondary"
},
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"attackVector": "NETWORK",
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"baseScore": 10.0,
"baseSeverity": "CRITICAL",
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"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
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"impactScore": 5.8,
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},
"published": "2020-01-30T22:15:10.093",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8"
},
{
"source": "security-advisories@github.com",
"tags": [
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"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-vmm6-w4cf-7f3x"
},
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}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-285"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-287"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2021-12-14 20:15
Modified
2024-11-21 06:29
Severity ?
9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Summary
Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6 allows references to local file URLs in ingested media packages, allowing attackers to include local files from Opencast's host machines and making them available via the web interface. Before Opencast 9.10 and 10.6, Opencast would open and include local files during ingests. Attackers could exploit this to include most local files the process has read access to, extracting secrets from the host machine. An attacker would need to have the privileges required to add new media to exploit this. But these are often widely given. The issue has been fixed in Opencast 10.6 and 11.0. You can mitigate this issue by narrowing down the read access Opencast has to files on the file system using UNIX permissions or mandatory access control systems like SELinux. This cannot prevent access to files Opencast needs to read though and we highly recommend updating.
References
{
"configurations": [
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"versionEndExcluding": "10.6",
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}
],
"negate": false,
"operator": "OR"
}
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}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Opencast is an Open Source Lecture Capture \u0026 Video Management for Education. Opencast before version 9.10 or 10.6 allows references to local file URLs in ingested media packages, allowing attackers to include local files from Opencast\u0027s host machines and making them available via the web interface. Before Opencast 9.10 and 10.6, Opencast would open and include local files during ingests. Attackers could exploit this to include most local files the process has read access to, extracting secrets from the host machine. An attacker would need to have the privileges required to add new media to exploit this. But these are often widely given. The issue has been fixed in Opencast 10.6 and 11.0. You can mitigate this issue by narrowing down the read access Opencast has to files on the file system using UNIX permissions or mandatory access control systems like SELinux. This cannot prevent access to files Opencast needs to read though and we highly recommend updating."
},
{
"lang": "es",
"value": "Opencast es un software de c\u00f3digo abierto para la captura de conferencias y la administraci\u00f3n de v\u00eddeo para la educaci\u00f3n. Opencast versiones anteriores a 9.10 o 10.6, permite referencias a URLs de archivos locales en paquetes de medios ingeridos, permitiendo a atacantes incluir archivos locales de las m\u00e1quinas anfitrionas de Opencast y hacerlos disponibles por medio de la interfaz web. En versiones anteriores a Opencast 9.10 y 10.6, Opencast abr\u00eda e inclu\u00eda archivos locales durante las ingestas. Los atacantes pod\u00edan aprovechar esto para incluir la mayor\u00eda de los archivos locales a los que el proceso tuviera acceso de lectura, extrayendo secretos de la m\u00e1quina anfitriona. Un atacante necesitar\u00eda tener los privilegios necesarios para a\u00f1adir nuevos medios para explotar esto. Sin embargo, estos suelen ser ampliamente otorgados. El problema se ha corregido en Opencast versiones 10.6 y 11.0. Puede mitigar este problema limitando el acceso de lectura que Opencast posee a los archivos del sistema de archivos mediante permisos UNIX o sistemas de control de acceso obligatorios como SELinux. Sin embargo, esto no puede impedir el acceso a los archivos que Opencast necesita leer, por lo que recomendamos encarecidamente la actualizaci\u00f3n"
}
],
"id": "CVE-2021-43821",
"lastModified": "2024-11-21T06:29:51.980",
"metrics": {
"cvssMetricV2": [
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"acInsufInfo": false,
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"cvssData": {
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"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
"version": "2.0"
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"version": "3.1"
},
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"impactScore": 6.0,
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"type": "Secondary"
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{
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},
"published": "2021-12-14T20:15:07.617",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/blob/69952463971cf578363e3b97d8edaf334ff51253/modules/ingest-service-impl/src/main/java/org/opencastproject/ingest/impl/IngestServiceImpl.java#L1587"
},
{
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"tags": [
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"url": "https://github.com/opencast/opencast/commit/65c46b9d3e8f045c544881059923134571897764"
},
{
"source": "security-advisories@github.com",
"tags": [
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"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-59g4-hpg3-3gcp"
},
{
"source": "security-advisories@github.com",
"tags": [
"Third Party Advisory"
],
"url": "https://mvnrepository.com/artifact/org.opencastproject/opencast-ingest-service-impl"
},
{
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"tags": [
"Patch",
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],
"url": "https://github.com/opencast/opencast/blob/69952463971cf578363e3b97d8edaf334ff51253/modules/ingest-service-impl/src/main/java/org/opencastproject/ingest/impl/IngestServiceImpl.java#L1587"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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"Patch",
"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/commit/65c46b9d3e8f045c544881059923134571897764"
},
{
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"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-59g4-hpg3-3gcp"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://mvnrepository.com/artifact/org.opencastproject/opencast-ingest-service-impl"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-552"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-552"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2020-01-30 20:15
Modified
2024-11-21 05:33
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user's password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint.
References
{
"configurations": [
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"criteria": "cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*",
"matchCriteriaId": "11673AEB-4E7B-43BF-98BA-9031E47794ED",
"versionEndExcluding": "8.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user\u0027s password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint."
},
{
"lang": "es",
"value": "Opencast versiones anteriores a 8.1, almacena contrase\u00f1as usando el algoritmo hash MD5 bastante antiguo y criptogr\u00e1ficamente no seguro. Adem\u00e1s, los hash son salados utilizando el nombre de usuario en lugar de una sal aleatoria, causando que los hash para usuarios con el mismo nombre de usuario y contrase\u00f1a choquen, lo que es problem\u00e1tico, especialmente para usuarios populares tales como el usuario predeterminado \"admin\". Esto esencialmente significa que para un atacante, podr\u00eda ser factible reconstruir la contrase\u00f1a de un usuario dado el acceso a estos hashes. Considere que los atacantes al necesitar acceso a los hashes significa que deben obtener acceso a la base de datos en la que se almacenan primero, para que sean capaces de descifrar las contrase\u00f1as. El problema es abordado en Opencast versi\u00f3n 8.1, que ahora utiliza el algoritmo de hash de contrase\u00f1a bcrypt moderno y mucho m\u00e1s fuerte para almacenar contrase\u00f1as. Tome en cuenta que los hashes antiguos permanecen MD5 hasta que se actualiza la contrase\u00f1a. Para obtener una lista de los usuarios cuyos hash de contrase\u00f1a son almacenados con MD5, visualice al endpoint REST \"/user-utils/users/md5.json\"."
}
],
"id": "CVE-2020-5229",
"lastModified": "2024-11-21T05:33:43.367",
"metrics": {
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"baseScore": 5.5,
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"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
"version": "2.0"
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
"version": "3.1"
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"exploitabilityScore": 1.3,
"impactScore": 5.8,
"source": "security-advisories@github.com",
"type": "Secondary"
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
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]
},
"published": "2020-01-30T20:15:10.420",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e"
},
{
"source": "security-advisories@github.com",
"tags": [
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],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-h362-m8f2-5x7c"
},
{
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"url": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e"
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}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-327"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-327"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2020-01-30 20:15
Modified
2024-11-21 05:33
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Opencast before 8.1 and 7.6 allows unauthorized public access to all media and metadata by default via OAI-PMH. OAI-PMH is part of the default workflow and is activated by default, requiring active user intervention of users to protect media. This leads to users unknowingly handing out public access to events without their knowledge. The problem has been addressed in Opencast 7.6 and 8.1 where the OAI-PMH endpoint is configured to require users with `ROLE_ADMIN` by default. In addition to this, Opencast 9 removes the OAI-PMH publication from the default workflow, making the publication a conscious decision users have to make by updating their workflows.
References
{
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"versionEndExcluding": "7.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apereo:opencast:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "4A82AABB-ACF6-4017-99E8-4DA90CE416D7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Opencast before 8.1 and 7.6 allows unauthorized public access to all media and metadata by default via OAI-PMH. OAI-PMH is part of the default workflow and is activated by default, requiring active user intervention of users to protect media. This leads to users unknowingly handing out public access to events without their knowledge. The problem has been addressed in Opencast 7.6 and 8.1 where the OAI-PMH endpoint is configured to require users with `ROLE_ADMIN` by default. In addition to this, Opencast 9 removes the OAI-PMH publication from the default workflow, making the publication a conscious decision users have to make by updating their workflows."
},
{
"lang": "es",
"value": "Opencast versiones anteriores a 8.1 y 7.6, permite el acceso p\u00fablico no autorizado para todos los medios y metadatos por defecto por medio de OAI-PMH. OAI-PMH es parte del flujo de trabajo predeterminado y es activada por defecto, requiriendo la intervenci\u00f3n activa de los usuarios para proteger los medios. Esto conlleva a que los usuarios, sin saberlo, entreguen un acceso p\u00fablico a eventos sin su conocimiento. El problema ha sido abordado en Opencast versiones 7.6 y 8.1, donde el endpoint OAI-PMH es configurado para solicitar usuarios con \"ROLE_ADMIN\" por defecto. Adem\u00e1s de esto, Opencast versi\u00f3n 9 elimina la publicaci\u00f3n OAI-PMH del flujo de trabajo predeterminado, haciendo que la publicaci\u00f3n sea una decisi\u00f3n consciente que los usuarios tienen que tomar al actualizar sus flujos de trabajo."
}
],
"id": "CVE-2020-5228",
"lastModified": "2024-11-21T05:33:43.257",
"metrics": {
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"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
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"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.3,
"impactScore": 4.7,
"source": "security-advisories@github.com",
"type": "Secondary"
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
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"source": "nvd@nist.gov",
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]
},
"published": "2020-01-30T20:15:10.310",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
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"url": "https://github.com/opencast/opencast/blob/1fb812c7810c78f09f29a7f455ff920417924307/etc/security/mh_default_org.xml#L271-L276"
},
{
"source": "security-advisories@github.com",
"tags": [
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"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-6f54-3qr9-pjgj"
},
{
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"tags": [
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"url": "https://github.com/opencast/opencast/blob/1fb812c7810c78f09f29a7f455ff920417924307/etc/security/mh_default_org.xml#L271-L276"
},
{
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"tags": [
"Mitigation",
"Third Party Advisory"
],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-6f54-3qr9-pjgj"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2022-11-28 21:15
Modified
2024-11-21 07:24
Severity ?
5.7 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to Opencast 12.5, Opencast's Paella authentication page could be used to redirect to an arbitrary URL for authenticated users. The vulnerability allows attackers to redirect users to sites outside of one's Opencast install, potentially facilitating phishing attacks or other security issues. This issue is fixed in Opencast 12.5 and newer.
References
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"versionEndExcluding": "12.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to Opencast 12.5, Opencast\u0027s Paella authentication page could be used to redirect to an arbitrary URL for authenticated users. The vulnerability allows attackers to redirect users to sites outside of one\u0027s Opencast install, potentially facilitating phishing attacks or other security issues. This issue is fixed in Opencast 12.5 and newer."
},
{
"lang": "es",
"value": "Opencast es una plataforma gratuita de c\u00f3digo abierto para respaldar la gesti\u00f3n de contenido educativo de audio y video. Antes de Opencast 12.5, la p\u00e1gina de autenticaci\u00f3n Paella de Opencast pod\u00eda usarse para redirigir a una URL arbitraria para usuarios autenticados. La vulnerabilidad permite a los atacantes redirigir a los usuarios a sitios fuera de la instalaci\u00f3n de Opencast, lo que potencialmente facilita los ataques de phishing u otros problemas de seguridad. Este problema se solucion\u00f3 en Opencast 12.5 y versiones posteriores."
}
],
"id": "CVE-2022-41965",
"lastModified": "2024-11-21T07:24:10.123",
"metrics": {
"cvssMetricV31": [
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"attackVector": "NETWORK",
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"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
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"version": "3.1"
},
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"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
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"impactScore": 2.7,
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"published": "2022-11-28T21:15:10.510",
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"url": "https://github.com/opencast/opencast/commit/d2ce2321590f86b066a67e8c231cf68219aea017"
},
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],
"url": "https://github.com/opencast/opencast/security/advisories/GHSA-r3qr-vwvg-43f7"
},
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"url": "https://github.com/opencast/opencast/commit/d2ce2321590f86b066a67e8c231cf68219aea017"
},
{
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}
],
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"vulnStatus": "Modified",
"weaknesses": [
{
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{
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"value": "CWE-601"
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"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2020-01-30 21:15
Modified
2024-11-21 05:33
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
Opencast before 8.1 and 7.6 allows almost arbitrary identifiers for media packages and elements to be used. This can be problematic for operation and security since such identifiers are sometimes used for file system operations which may lead to an attacker being able to escape working directories and write files to other locations. In addition, Opencast's Id.toString(…) vs Id.compact(…) behavior, the latter trying to mitigate some of the file system problems, can cause errors due to identifier mismatch since an identifier may unintentionally change. This issue is fixed in Opencast 7.6 and 8.1.
References
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"value": "Opencast anterior a las versiones 8.1 y 7.6 permite utilizar identificadores casi arbitrarios para paquetes y elementos de medios. Esto puede ser problem\u00e1tico para la operaci\u00f3n y la seguridad, ya que tales identificadores a veces se usan para las operaciones del sistema de archivos, lo que puede llevar a un atacante a escapar de directorios de trabajo y escribir archivos en otras ubicaciones. Adem\u00e1s, el comportamiento Id.toString (...) vs Id.compact (...) de Opencast, este \u00faltimo tratando de mitigar algunos de los problemas del sistema de archivos, puede causar errores debido a la falta de coincidencia del identificador ya que un identificador puede cambiar involuntariamente. Este problema se soluciona en Opencast 7.6 y 8.1."
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},
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}
Vulnerability from fkie_nvd
Published
2021-12-14 18:15
Modified
2024-11-21 06:29
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Summary
Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast versions prior to 9.10 allow HTTP method spoofing, allowing to change the assumed HTTP method via URL parameter. This allows attackers to turn HTTP GET requests into PUT requests or an HTTP form to send DELETE requests. This bypasses restrictions otherwise put on these types of requests and aids in cross-site request forgery (CSRF) attacks, which would otherwise not be possible. The vulnerability allows attackers to craft links or forms which may change the server state. This issue is fixed in Opencast 9.10 and 10.0. You can mitigate the problem by setting the `SameSite=Strict` attribute for your cookies. If this is a viable option for you depends on your integrations. We strongly recommend updating in any case.
References
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},
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"value": "Opencast es un software de c\u00f3digo abierto para la captura de conferencias y administraci\u00f3n de v\u00eddeo para la educaci\u00f3n. Opencast versiones anteriores a la 9.10 permiten una suplantaci\u00f3n del m\u00e9todo HTTP, permitiendo cambiar el m\u00e9todo HTTP asumido por medio del par\u00e1metro de la URL. Esto permite a atacantes convertir las peticiones HTTP GET en peticiones PUT o un formulario HTTP para enviar peticiones DELETE. Esto evita las restricciones impuestas a este tipo de peticiones y ayuda a realizar ataques de tipo cross-site request forgery (CSRF), que de otro modo no ser\u00edan posibles. La vulnerabilidad permite a atacantes crear enlaces o formularios que pueden cambiar el estado del servidor. Este problema se ha corregido en Opencast versiones 9.10 y 10.0. Puede mitigar el problema al establecer el atributo \"SameSite=Strict\" para sus cookies. Si esta es una opci\u00f3n viable para usted depende de sus integraciones. Recomendamos encarecidamente la actualizaci\u00f3n en cualquier caso"
}
],
"id": "CVE-2021-43807",
"lastModified": "2024-11-21T06:29:50.003",
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"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
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"value": "CWE-290"
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}
Vulnerability from fkie_nvd
Published
2022-05-24 15:15
Modified
2024-11-21 06:58
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
Opencast is a free and open source solution for automated video capture and distribution at scale. Prior to Opencast 10.14 and 11.7, users could pass along URLs for files belonging to organizations other than the user's own, which Opencast would then import into the current organization, bypassing organizational barriers. Attackers must have full access to Opencast's ingest REST interface, and also know internal links to resources in another organization of the same Opencast cluster. Users who do not run a multi-tenant cluster are not affected by this issue. This issue is fixed in Opencast 10.14 and 11.7.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| security-advisories@github.com | https://github.com/opencast/opencast/commit/8d5ec1614eed109b812bc27b0c6d3214e456d4e7 | Patch, Third Party Advisory | |
| security-advisories@github.com | https://github.com/opencast/opencast/security/advisories/GHSA-qm6v-cg9v-53j3 | Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/opencast/opencast/commit/8d5ec1614eed109b812bc27b0c6d3214e456d4e7 | Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/opencast/opencast/security/advisories/GHSA-qm6v-cg9v-53j3 | Patch, Third Party Advisory |
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},
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"vulnStatus": "Modified",
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"value": "CWE-287"
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}
Vulnerability from fkie_nvd
Published
2020-01-30 22:15
Modified
2024-11-21 05:33
Severity ?
4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name – implying an admin for a specific course – users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration.
References
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},
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"value": "En Opencast anterior a las versiones 7.6 y 8.1, los usuarios con el rol ROLE_COURSE_ADMIN pueden usar el punto final user-utils para crear nuevos usuarios sin incluir el rol ROLE_ADMIN. ROLE_COURSE_ADMIN es un rol no est\u00e1ndar en Opencast al que no se hace referencia ni en la documentaci\u00f3n ni en ning\u00fan c\u00f3digo (excepto para las pruebas) sino solo en la configuraci\u00f3n de seguridad. Por el nombre, lo que implica un administrador para un curso espec\u00edfico, los usuarios nunca esperar\u00edan que este rol permita la creaci\u00f3n de usuarios. Este problema se solucion\u00f3 en 7.6 y 8.1, que incluyen una nueva configuraci\u00f3n de seguridad predeterminada."
}
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"lastModified": "2024-11-21T05:33:43.587",
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CVE-2021-21318 (GCVE-0-2021-21318)
Vulnerability from cvelistv5
Published
2021-02-18 17:20
Modified
2024-08-03 18:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-863 - Incorrect Authorization
Summary
Opencast is a free, open-source platform to support the management of educational audio and video content. In Opencast before version 9.2 there is a vulnerability in which publishing an episode with strict access rules will overwrite the currently set series access. This allows for an easy denial of access for all users without superuser privileges, effectively hiding the series. Access to series and series metadata on the search service (shown in media module and player) depends on the events published which are part of the series. Publishing an event will automatically publish a series and update access to it. Removing an event or republishing the event should do the same. Affected versions of Opencast may not update the series access or remove a published series if an event is being removed. On removal of an episode, this may lead to an access control list for series metadata with broader access rules than the merged access rules of all remaining events, or the series metadata still being available although all episodes of that series have been removed. This problem is fixed in Opencast 9.2.
References
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CVE-2021-43807 (GCVE-0-2021-43807)
Vulnerability from cvelistv5
Published
2021-12-14 18:10
Modified
2024-08-04 04:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-290 - Authentication Bypass by Spoofing
Summary
Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast versions prior to 9.10 allow HTTP method spoofing, allowing to change the assumed HTTP method via URL parameter. This allows attackers to turn HTTP GET requests into PUT requests or an HTTP form to send DELETE requests. This bypasses restrictions otherwise put on these types of requests and aids in cross-site request forgery (CSRF) attacks, which would otherwise not be possible. The vulnerability allows attackers to craft links or forms which may change the server state. This issue is fixed in Opencast 9.10 and 10.0. You can mitigate the problem by setting the `SameSite=Strict` attribute for your cookies. If this is a viable option for you depends on your integrations. We strongly recommend updating in any case.
References
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CVE-2020-5229 (GCVE-0-2020-5229)
Vulnerability from cvelistv5
Published
2020-01-30 20:05
Modified
2024-08-04 08:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Summary
Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user's password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint.
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CVE-2018-16153 (GCVE-0-2018-16153)
Vulnerability from cvelistv5
Published
2023-12-12 00:00
Modified
2025-05-27 14:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Apereo Opencast 4.x through 10.x before 10.6. It sends system digest credentials during authentication attempts to arbitrary external services in some situations.
References
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CVE-2020-5228 (GCVE-0-2020-5228)
Vulnerability from cvelistv5
Published
2020-01-30 19:50
Modified
2024-08-04 08:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-862 - Missing Authorization
Summary
Opencast before 8.1 and 7.6 allows unauthorized public access to all media and metadata by default via OAI-PMH. OAI-PMH is part of the default workflow and is activated by default, requiring active user intervention of users to protect media. This leads to users unknowingly handing out public access to events without their knowledge. The problem has been addressed in Opencast 7.6 and 8.1 where the OAI-PMH endpoint is configured to require users with `ROLE_ADMIN` by default. In addition to this, Opencast 9 removes the OAI-PMH publication from the default workflow, making the publication a conscious decision users have to make by updating their workflows.
References
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CVE-2020-5230 (GCVE-0-2020-5230)
Vulnerability from cvelistv5
Published
2020-01-30 20:55
Modified
2024-08-04 08:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Summary
Opencast before 8.1 and 7.6 allows almost arbitrary identifiers for media packages and elements to be used. This can be problematic for operation and security since such identifiers are sometimes used for file system operations which may lead to an attacker being able to escape working directories and write files to other locations. In addition, Opencast's Id.toString(…) vs Id.compact(…) behavior, the latter trying to mitigate some of the file system problems, can cause errors due to identifier mismatch since an identifier may unintentionally change. This issue is fixed in Opencast 7.6 and 8.1.
References
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CVE-2022-41965 (GCVE-0-2022-41965)
Vulnerability from cvelistv5
Published
2022-11-28 00:00
Modified
2025-04-23 16:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Summary
Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to Opencast 12.5, Opencast's Paella authentication page could be used to redirect to an arbitrary URL for authenticated users. The vulnerability allows attackers to redirect users to sites outside of one's Opencast install, potentially facilitating phishing attacks or other security issues. This issue is fixed in Opencast 12.5 and newer.
References
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CVE-2021-43821 (GCVE-0-2021-43821)
Vulnerability from cvelistv5
Published
2021-12-14 19:15
Modified
2024-08-04 04:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-552 - Files or Directories Accessible to External Parties
Summary
Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6 allows references to local file URLs in ingested media packages, allowing attackers to include local files from Opencast's host machines and making them available via the web interface. Before Opencast 9.10 and 10.6, Opencast would open and include local files during ingests. Attackers could exploit this to include most local files the process has read access to, extracting secrets from the host machine. An attacker would need to have the privileges required to add new media to exploit this. But these are often widely given. The issue has been fixed in Opencast 10.6 and 11.0. You can mitigate this issue by narrowing down the read access Opencast has to files on the file system using UNIX permissions or mandatory access control systems like SELinux. This cannot prevent access to files Opencast needs to read though and we highly recommend updating.
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CVE-2020-5222 (GCVE-0-2020-5222)
Vulnerability from cvelistv5
Published
2020-01-30 20:50
Modified
2024-08-04 08:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-798 - Use of Hard-coded Credentials
Summary
Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key. This means that an attacker getting access to a remember-me token for one server can get access to all servers which allow log-in using the same credentials without ever needing the credentials. This problem is fixed in Opencast 7.6 and Opencast 8.1
References
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CVE-2020-5206 (GCVE-0-2020-5206)
Vulnerability from cvelistv5
Published
2020-01-30 21:25
Modified
2024-08-04 08:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-285 - Improper Authorization
Summary
In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1
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CVE-2020-26234 (GCVE-0-2020-26234)
Vulnerability from cvelistv5
Published
2020-12-08 22:35
Modified
2024-08-04 15:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-346 - Origin Validation Error
Summary
Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate.
References
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CVE-2022-29237 (GCVE-0-2022-29237)
Vulnerability from cvelistv5
Published
2022-05-24 14:40
Modified
2025-04-23 18:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-287 - Improper Authentication
Summary
Opencast is a free and open source solution for automated video capture and distribution at scale. Prior to Opencast 10.14 and 11.7, users could pass along URLs for files belonging to organizations other than the user's own, which Opencast would then import into the current organization, bypassing organizational barriers. Attackers must have full access to Opencast's ingest REST interface, and also know internal links to resources in another organization of the same Opencast cluster. Users who do not run a multi-tenant cluster are not affected by this issue. This issue is fixed in Opencast 10.14 and 11.7.
References
| ► | URL | Tags |
|---|---|---|
Impacted products
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CVE-2017-1000221 (GCVE-0-2017-1000221)
Vulnerability from cvelistv5
Published
2017-11-17 22:00
Modified
2024-09-16 19:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
In Opencast 2.2.3 and older if user names overlap, the Opencast search service used for publication to the media modules and players will handle the access control incorrectly so that users only need to match part of the user name used for the access restriction. For example, a user with the role ROLE_USER will have access to recordings published only for ROLE_USER_X.
References
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CVE-2020-5231 (GCVE-0-2020-5231)
Vulnerability from cvelistv5
Published
2020-01-30 21:15
Modified
2024-08-04 08:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-285 - Improper Authorization
Summary
In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name – implying an admin for a specific course – users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration.
References
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CVE-2021-32623 (GCVE-0-2021-32623)
Vulnerability from cvelistv5
Published
2021-06-15 23:45
Modified
2024-08-03 23:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Summary
Opencast is a free and open source solution for automated video capture and distribution. Versions of Opencast prior to 9.6 are vulnerable to the billion laughs attack, which allows an attacker to easily execute a (seemingly permanent) denial of service attack, essentially taking down Opencast using a single HTTP request. To exploit this, users need to have ingest privileges, limiting the group of potential attackers The problem has been fixed in Opencast 9.6. There is no known workaround for this issue.
References
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