Vulnerability · Published May 31, 2022 · Assigned by mitre

CVE-2021-32546

High 8.8

In plain English

A high-severity security flaw in the gogs.io/gogs package (Go). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.8High

Exploit odds (30 days)2.2%top 17.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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).

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	gogs.io/gogs	0.12.8	GHSA-56j7-2pm8-rgmx
Go	gogs.io/gogs	0.12.8	GO-2022-0471

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/gogs/gogs/releases x_refsource_MISC
https://github.com/gogs/gogs/security/advisories/GHSA-56j7-2pm8-rgmx x_refsource_MISC