PT-2023-21224 · Github · Github-Slug-Action

R3X · Published 2023-03-13 · Updated 2023-03-17 · CVE-2023-27581

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions github-slug-action versions 4.0.0 through 4.4.1

Description The github-slug-action uses the github.head ref parameter in an insecure way, allowing any user on GitHub to trigger the vulnerability by creating a pull request with a branch name containing the attack payload. This can be used to execute code on the GitHub runners and to exfiltrate any secrets used in the CI pipeline.

Recommendations For github-slug-action versions 4.0.0 through 4.4.1, update to version 4.4.1 or later to resolve the issue. As a temporary workaround, consider passing the variable as an environment variable and using the environment variable instead of substituting it directly, until a patch is available. No other workarounds are available, so upgrading the version is the recommended course of action.

Exploit

Fix

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2023-27581

GHSA-6Q4M-7476-932W

Affected Products

Github-Slug-Action

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27581.json · Exploit
• 🔥 https://securitylab.github.com/research/github-actions-untrusted-input · Exploit
• https://github.com/rlespinasse/github-slug-action/commit/102b1a064a9b145e56556e22b18b19c624538d94 · Patch
• https://github.com/rlespinasse/github-slug-action/security/advisories/GHSA-6q4m-7476-932w · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-27581 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-27581 · Security Note
• https://osv.dev/vulnerability/GHSA-6q4m-7476-932w · Vendor Advisory
• https://github.com/rlespinasse/github-slug-action · Note
• https://github.com/rlespinasse/github-slug-action/releases/tag/v4.4.1 · Note
• https://t.me/cvenotify/46412 · Telegram Post