Vulnerability CVE-2021-22234

Vulnerability Name:

CVE-2021-22234 (CCN-206925)

Assigned:

2021-07-29

Published:

2021-07-29

Updated:

2022-07-22

Summary:

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.11 before 13.11.7, all versions starting from 13.12 before 13.12.8, and all versions starting from 14.0 before 14.0.4. A specially crafted design image allowed attackers to read arbitrary files on the server.

CVSS v3 Severity:

6.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N)
5.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

9.6 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N)
8.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): None

CVSS v2 Severity:

3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

8.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-79

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2021-22234

Source: XF
Type: UNKNOWN
gitlab-cve202122234-info-disc(206925)

Source: CCN
Type: GitLab Web site
CVE-2021-22234.json

Source: CONFIRM
Type: Vendor Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22234.json

Source: MISC
Type: Issue Tracking, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/335205

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://hackerone.com/reports/1212067

Vulnerable Configuration:

Configuration 1:

cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 14.0.0 and <= 14.0.4)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 14.0.0 and <= 14.0.4)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 13.12.0 and <= 13.12.8)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 13.12.0 and <= 13.12.8)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 13.11.0 and <= 13.11.7)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 13.11.0 and <= 13.11.7)

Configuration CCN 1:

cpe:/a:gitlab:gitlab:13.12.0:*:*:*:community:*:*:*

OR cpe:/a:gitlab:gitlab:14.0.3:*:*:*:community:*:*:*

OR cpe:/a:gitlab:gitlab:13.12.7:*:*:*:community:*:*:*

OR cpe:/a:gitlab:gitlab:13.11.6:*:*:*:community:*:*:*

Denotes that component is vulnerable

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