Vulnerability Details : CVE-2021-32546
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).
Vulnerability category: Execute code
Products affected by CVE-2021-32546
- cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32546
2.37%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32546
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
References for CVE-2021-32546
-
https://github.com/gogs/gogs/releases
Releases · gogs/gogs · GitHubRelease Notes;Third Party Advisory
-
https://github.com/gogs/gogs/security/advisories/GHSA-56j7-2pm8-rgmx
Remote Command Execution in file editing · Advisory · gogs/gogs · GitHubIssue Tracking;Third Party Advisory
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