Vulnerability CVE-2020-13282

Vulnerability Name:

CVE-2020-13282 (CCN-186796)

Assigned:

2020-08-12

Published:

2020-08-12

Updated:

2020-08-19

Summary:

For GitLab before 13.0.12, 13.1.6, 13.2.3 after a group transfer occurs, members from a parent group keep their access level on the subgroup leading to improper access.

CVSS v3 Severity:

3.5 Low (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N)
3.1 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/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): High User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

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

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

CVSS v2 Severity:

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

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

5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)

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

Vulnerability Type:

CWE-281

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2020-13282

Source: XF
Type: UNKNOWN
gitlab-cve202013282-sec-bypass(186796)

Source: CCN
Type: GitLab Web site
Improper access control in GitLab

Source: CONFIRM
Type: Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13282.json

Source: MISC
Type: Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/202687

Source: MISC
Type: Permissions Required, Third Party Advisory
https://hackerone.com/reports/790786

Vulnerable Configuration:

Configuration 1:

cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 10.5.0 and < 13.0.12)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 10.5.0 and < 13.0.12)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 13.1.0 and < 13.1.6)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 13.1.0 and < 13.1.6)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 13.2.0 and < 13.2.3)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 13.2.0 and < 13.2.3)

Configuration CCN 1:

cpe:/a:gitlab:gitlab:13.0.11:*:*:*:*:*:*:*

OR cpe:/a:gitlab:gitlab:13.1.5:*:*:*:*:*:*:*

OR cpe:/a:gitlab:gitlab:13.2.2:*:*:*:*:*:*:*

Denotes that component is vulnerable

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