fkie_cve-2019-19522
Vulnerability from fkie_nvd
Published
2019-12-05 00:15
Modified
2024-11-21 04:34
Severity ?
Summary
OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:openbsd:openbsd:6.6:*:*:*:*:*:*:*",
"matchCriteriaId": "0E0CC007-1428-4683-A196-3544F1C9CC92",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root\u0027s file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root."
},
{
"lang": "es",
"value": "OpenBSD versi\u00f3n 6.6, en una configuraci\u00f3n no predeterminada donde la autenticaci\u00f3n S/Key o YubiKey est\u00e1 habilitada, permite a usuarios locales convertirse a root mediante el aprovechamiento de la membres\u00eda en el grupo de autenticaci\u00f3n. Esto ocurre porque el archivo root puede ser escrito en /etc/skey o /var/db/yubikey, y no es necesario que sea propiedad de root."
}
],
"id": "CVE-2019-19522",
"lastModified": "2024-11-21T04:34:52.990",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2019-12-05T00:15:11.497",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2019/Dec/14"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2019/12/04/5"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "https://seclists.org/bugtraq/2019/Dec/8"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.openbsd.org/errata66.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "https://www.openwall.com/lists/oss-security/2019/12/04/5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2019/Dec/14"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2019/12/04/5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "https://seclists.org/bugtraq/2019/Dec/8"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.openbsd.org/errata66.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Mailing List",
"Third Party Advisory"
],
"url": "https://www.openwall.com/lists/oss-security/2019/12/04/5"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-732"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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