CVE-2021-32546
published 2022-06-02CVE-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…
PriorityP357high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
1.97%
77.9th percentile
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
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gogs.io | gogs | >= 0 < 0.12.8 | 0.12.8 |
| gogs | gogs | < 0.12.8 | 0.12.8 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
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OSV
OS Command Injection in gogs in gogs.io/gogs
osv·2024-08-21
CVE-2021-32546 OS Command Injection in gogs in gogs.io/gogs
OS Command Injection in gogs in gogs.io/gogs
OS Command Injection in gogs in gogs.io/gogs
GHSA
OS Command Injection in gogs
ghsa·2022-06-02
CVE-2021-32546 [CRITICAL] CWE-78 OS Command Injection in gogs
OS Command Injection in gogs
### 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)](https://github.com/gogs/gogs/blob/f36eeedbf89328ee70cc3a2e239f6314f9021f58/conf/app.ini#L127-L129) 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.
OSV
OS Command Injection in gogs
osv·2022-06-02
CVE-2021-32546 [CRITICAL] OS Command Injection in gogs
OS Command Injection in gogs
### 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)](https://github.com/gogs/gogs/blob/f36eeedbf89328ee70cc3a2e239f6314f9021f58/conf/app.ini#L127-L129) 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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-06-02
Published