Remote Command Execution in Gogs by Unprivileged Users
CVE-2021-32546

8.8HIGH

Key Information:

Vendor

Gogs

Status
Gogs
Vendor
CVE Published:
2 June 2022

What is CVE-2021-32546?

A vulnerability in the Gogs platform allows unprivileged registered users to execute arbitrary commands remotely. This occurs due to a lack of input validation in the file 'internal/db/repo_editor.go'. Attackers can overwrite the Git configuration in their repositories, leveraging this to execute commands via an 'sshCommand' option in the configuration. By manipulating the repository's configuration, a malicious user can introduce harmful code that executes when the master branch points to a malicious remote branch, thereby compromising the server.

References

https://github.com/gogs/gogs/releases
x_refsource_MISC
https://github.com/gogs/gogs/security/advisories/GHSA-56j...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2021-32546 : Remote Command Execution in Gogs by Unprivileged Users