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CVE-2022-39321 Detail

Description

GitHub Actions Runner is the application that runs a job from a GitHub Actions workflow. The actions runner invokes the docker cli directly in order to run job containers, service containers, or container actions. A bug in the logic for how the environment is encoded into these docker commands was discovered in versions prior to 2.296.2, 2.293.1, 2.289.4, 2.285.2, and 2.283.4 that allows an input to escape the environment variable and modify that docker command invocation directly. Jobs that use container actions, job containers, or service containers alongside untrusted user inputs in environment variables may be vulnerable. The Actions Runner has been patched, both on `github.com` and hotfixes for GHES and GHAE customers in versions 2.296.2, 2.293.1, 2.289.4, 2.285.2, and 2.283.4. GHES and GHAE customers may want to patch their instance in order to have their runners automatically upgrade to these new runner versions. As a workaround, users may consider removing any container actions, job containers, or service containers from their jobs until they are able to upgrade their runner versions.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/actions/runner/pull/2107 Patch  Release Notes  Third Party Advisory 
https://github.com/actions/runner/pull/2107 Patch  Release Notes  Third Party Advisory 
https://github.com/actions/runner/pull/2108 Patch  Third Party Advisory 
https://github.com/actions/runner/pull/2108 Patch  Third Party Advisory 
https://github.com/actions/runner/security/advisories/GHSA-2c6m-6gqh-6qg3 Third Party Advisory 
https://github.com/actions/runner/security/advisories/GHSA-2c6m-6gqh-6qg3 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') cwe source acceptance level NIST   GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-39321
NVD Published Date:
10/25/2022
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.