CVE-2020-13272 : OAuth flow missing verification checks CE/EE 12.3 and later through 13.0.1 allow

OAuth flow missing verification checks CE/EE 12.3 and later through 13.0.1 allows unverified user to use OAuth authorization code flow

Published 2020-06-19 22:15:13

Updated 2021-07-21 11:39:24

Source GitLab Inc.

View at NVD, CVE.org

Products affected by CVE-2020-13272

Gitlab » Gitlab » Enterprise Edition
Versions from including (>=) 12.3.0 and before (<) 12.9.8
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
Matching versions
Gitlab » Gitlab » Community Edition
Versions from including (>=) 12.3.0 and before (<) 12.9.8
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
Matching versions
Gitlab » Gitlab » Enterprise Edition
Versions from including (>=) 12.10.0 and before (<) 12.10.7
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
Matching versions
Gitlab » Gitlab » Community Edition
Versions from including (>=) 12.10.0 and before (<) 12.10.7
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
Matching versions
Gitlab » Gitlab » Version: 13.0.0 Community Edition
cpe:2.3:a:gitlab:gitlab:13.0.0:*:*:*:community:*:*:*
Matching versions
Gitlab » Gitlab » Version: 13.0.0 Enterprise Edition
cpe:2.3:a:gitlab:gitlab:13.0.0:*:*:*:enterprise:*:*:*
Matching versions

EPSS FAQ

0.11%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 26 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	1.6	5.9	GitLab Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-345 Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Assigned by: nvd@nist.gov (Primary)

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