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Veracode Vulnerability DatabaseVERACODE:42392

HistoryAug 06, 2023 - 7:57 p.m.

Authorization Bypass

2023-08-0619:57:10

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

gitlab

authorization bypass

vulnerability

admin

impersonation

repudiation

CVSS2

5.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

3.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

EPSS

0.001

Percentile

22.7%

JSON

gitlab is vulnerable to Authorization Bypass. The vulnerability exists 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.

References

gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39896.json

gitlab.com/gitlab-org/gitlab/-/issues/339362

security-tracker.debian.org/tracker/CVE-2021-39896

CVSS2

5.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

3.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

EPSS

0.001

Percentile

22.7%

JSON

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