gsd-2023-43652
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key should be considered public knowledge and should not used as an authentication secret alone. JumpServer provides an API for the KoKo component to validate user private key logins. This API does not verify the source of requests and will generate a personal authentication token. Given that public keys can be easily leaked, an attacker can exploit the leaked public key and username to authenticate, subsequently gaining access to the current user's information and authorized actions. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-43652",
"id": "GSD-2023-43652"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-43652"
],
"details": "JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key should be considered public knowledge and should not used as an authentication secret alone. JumpServer provides an API for the KoKo component to validate user private key logins. This API does not verify the source of requests and will generate a personal authentication token. Given that public keys can be easily leaked, an attacker can exploit the leaked public key and username to authenticate, subsequently gaining access to the current user\u0027s information and authorized actions. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
"id": "GSD-2023-43652",
"modified": "2023-12-13T01:20:44.778460Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ID": "CVE-2023-43652",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "jumpserver",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "\u003e= 2.0.0, \u003c 2.28.20"
},
{
"version_affected": "=",
"version_value": "\u003e= 3.0.0, \u003c 3.7.1"
}
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}
]
},
"vendor_name": "jumpserver"
}
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"description": {
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"value": "JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key should be considered public knowledge and should not used as an authentication secret alone. JumpServer provides an API for the KoKo component to validate user private key logins. This API does not verify the source of requests and will generate a personal authentication token. Given that public keys can be easily leaked, an attacker can exploit the leaked public key and username to authenticate, subsequently gaining access to the current user\u0027s information and authorized actions. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability."
}
]
},
"impact": {
"cvss": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"version": "3.1"
}
]
},
"problemtype": {
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"description": [
{
"cweId": "CWE-862",
"lang": "eng",
"value": "CWE-862: Missing Authorization"
}
]
}
]
},
"references": {
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{
"name": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-fr8h-xh5x-r8g9",
"refsource": "MISC",
"url": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-fr8h-xh5x-r8g9"
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]
},
"source": {
"advisory": "GHSA-fr8h-xh5x-r8g9",
"discovery": "UNKNOWN"
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "3.7.1",
"versionStartIncluding": "3.0.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:fit2cloud:jumpserver:*:*:*:*:*:*:*:*",
"cpe_name": [],
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"description": {
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"value": "JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key should be considered public knowledge and should not used as an authentication secret alone. JumpServer provides an API for the KoKo component to validate user private key logins. This API does not verify the source of requests and will generate a personal authentication token. Given that public keys can be easily leaked, an attacker can exploit the leaked public key and username to authenticate, subsequently gaining access to the current user\u0027s information and authorized actions. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability."
}
]
},
"problemtype": {
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{
"name": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-fr8h-xh5x-r8g9",
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"tags": [
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"url": "https://github.com/jumpserver/jumpserver/security/advisories/GHSA-fr8h-xh5x-r8g9"
}
]
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},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.2
}
},
"lastModifiedDate": "2023-10-02T18:37Z",
"publishedDate": "2023-09-27T19:15Z"
}
}
}
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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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