CVE-2020-15272 : In the git-tag-annotation-action (open source GitHub Action) before version 1.0.

In the git-tag-annotation-action (open source GitHub Action) before version 1.0.1, an attacker can execute arbitrary (*) shell commands if they can control the value of [the `tag` input] or manage to alter the value of [the `GITHUB_REF` environment variable]. The problem has been patched in version 1.0.1. If you don't use the `tag` input you are most likely safe. The `GITHUB_REF` environment variable is protected by the GitHub Actions environment so attacks from there should be impossible. If you must use the `tag` input and cannot upgrade to `> 1.0.0` make sure that the value is not controlled by another Action.

Published 2020-10-26 19:15:13

Updated 2020-10-28 00:00:15

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2020-15272

Git-tag-annotation-action Project » Git-tag-annotation-action
Versions before (<) 1.0.1
cpe:2.3:a:git-tag-annotation-action_project:git-tag-annotation-action:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-15272

EPSS FAQ

0.09%

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

~ 39 %

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

CVSS scores for CVE-2020-15272

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
9.6	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N	3.1	5.8	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: None
8.7	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N	2.3	5.8	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: High Integrity: High Availability: None

CWE ids for CVE-2020-15272

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Primary)

References for CVE-2020-15272

https://github.com/ericcornelissen/git-tag-annotation-action/releases/tag/v1.0.1

Release Release v1.0.1 · ericcornelissen/git-tag-annotation-action · GitHub
Third Party Advisory
https://github.com/ericcornelissen/git-tag-annotation-action/commit/9f30756375cc4b1b6c66f274fc9c591fa901455a

Fix shell injection bug · ericcornelissen/git-tag-annotation-action@9f30756 · GitHub
Patch;Third Party Advisory
https://github.com/ericcornelissen/git-tag-annotation-action/security/advisories/GHSA-hgx2-4pp9-357g

Shell-injection through Action input · Advisory · ericcornelissen/git-tag-annotation-action · GitHub
Third Party Advisory

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Vulnerability Details : CVE-2020-15272

Products affected by CVE-2020-15272

Exploit prediction scoring system (EPSS) score for CVE-2020-15272

CVSS scores for CVE-2020-15272

CWE ids for CVE-2020-15272

References for CVE-2020-15272