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OS Command Injection in gogs

Critical severity GitHub Reviewed Published May 31, 2022 in gogs/gogs • Updated Jan 27, 2023

Package

gomod gogs.io/gogs (Go)

Affected versions

< 0.12.8

Patched versions

0.12.8

Description

Impact

The malicious user is able to update a crafted config file into repository's .git directory with to gain SSH access to the server. All installations with repository upload enabled (default) are affected.

Patches

Repository file updates are prohibited to its .git directory. Users should upgrade to 0.12.8 or the latest 0.13.0+dev.

Workarounds

N/A

References

N/A

For more information

If you have any questions or comments about this advisory, please post on #6555.

References

@unknwon unknwon published to gogs/gogs May 31, 2022
Published by the National Vulnerability Database Jun 2, 2022
Published to the GitHub Advisory Database Jun 2, 2022
Reviewed Jun 2, 2022
Last updated Jan 27, 2023

Severity

Critical

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(84th percentile)

Weaknesses

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. Learn more on MITRE.

CVE ID

CVE-2021-32546

GHSA ID

GHSA-56j7-2pm8-rgmx

Source code

Credits

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