CVE-2021-39896

In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues.

CVSS v3 3.8 LOW
CVSS v2.0 5.5 MEDIUM

3.8^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:N

Exploitability : 8.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json	Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/339362	Broken Link
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json	Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/339362	Broken Link

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

History

21 Nov 2024, 06:20

Type	Values Removed	Values Added
References	~~() https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json - Vendor Advisory~~	() https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json - Vendor Advisory
References	~~() https://gitlab.com/gitlab-org/gitlab/-/issues/339362 - Broken Link~~	() https://gitlab.com/gitlab-org/gitlab/-/issues/339362 - Broken Link

Information

Published : 2021-10-04 17:15

Updated : 2024-11-21 06:20

NVD link : CVE-2021-39896

Mitre link : CVE-2021-39896

CVE.ORG link : CVE-2021-39896

JSON object : View

Products Affected

gitlab

gitlab

CWE

NVD-CWE-noinfo

{"id": "CVE-2021-39896", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@gitlab.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.8, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 1.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.8, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 1.2}]}, "published": "2021-10-04T17:15:08.303", "references": [{"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json", "tags": ["Vendor Advisory"], "source": "cve@gitlab.com"}, {"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/339362", "tags": ["Broken Link"], "source": "cve@gitlab.com"}, {"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/339362", "tags": ["Broken Link"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In all versions of GitLab CE/EE since version 8.0, when an admin uses the impersonate feature twice and stops impersonating, the admin may be logged in as the second user they impersonated, which may lead to repudiation issues."}, {"lang": "es", "value": "En todas las versiones de GitLab CE/EE desde la versi\u00f3n 8.0, cuando un administrador usa la funcionalidad de suplantaci\u00f3n dos veces y deja de hacerlo, el administrador puede iniciar sesi\u00f3n como el segundo usuario al que suplant\u00f3, lo que puede conllevar a problemas de repudio"}], "lastModified": "2024-11-21T06:20:30.010", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "vulnerable": true, "matchCriteriaId": "108BFCA8-3661-485A-BD06-27FA8999BB50", "versionEndExcluding": "14.1.7", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "4B4A8EE5-32B8-4DFB-9431-01A76FF04037", "versionEndExcluding": "14.1.7", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "vulnerable": true, "matchCriteriaId": "A3352A07-9A5A-4CA9-B6F6-71BA3A1D4F9C", "versionEndExcluding": "14.2.5", "versionStartIncluding": "14.2"}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "CAAC78F3-28E1-4A0D-BA8A-78AE9393B988", "versionEndExcluding": "14.2.5", "versionStartIncluding": "14.2"}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "vulnerable": true, "matchCriteriaId": "A573FB75-1C20-4E3A-982C-2B422C95BED8", "versionEndExcluding": "14.3.1", "versionStartIncluding": "14.3"}, {"criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "vulnerable": true, "matchCriteriaId": "D0EFF286-2716-472C-AB8E-47595940C0B3", "versionEndExcluding": "14.3.1", "versionStartIncluding": "14.3"}], "operator": "OR"}]}], "sourceIdentifier": "cve@gitlab.com"}