CVE-2021-32546

Description

Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "\" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).

8.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 2.52% Top 20%

Third-Party Advisory github.com Third-Party Advisory github.com

Affected: n/a n/a

References

Link	Tags
https://github.com/gogs/gogs/releases	third party advisory release notes
https://github.com/gogs/gogs/security/advisories/GHSA-56j7-2pm8-rgmx	issue tracking third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-32546?: CVE-2021-32546 has been scored as a high severity vulnerability.
How to fix CVE-2021-32546?: To fix CVE-2021-32546, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32546 being actively exploited in the wild?: It is possible that CVE-2021-32546 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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