Path traversal in Mastodon - CVE-2023-36460
Published: July 10, 2023
Vulnerability identifier: #VU78046
CSH Severity: Medium
CVSS v4: 9.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]
CVE-ID: CVE-2023-36460
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and create and overwrite arbitrary files on the system.
Affected software
Mastodon
How to mitigate CVE-2023-36460
Install update from vendor's website.
Mastodon - addressed in versions 3.5.9, 4.0.5, 4.1.3
External References
- https://github.com/mastodon/mastodon/releases/tag/v3.5.9
- https://github.com/mastodon/mastodon/security/advisories/GHSA-9928-3cp5-93fm
- https://github.com/mastodon/mastodon/commit/dc8f1fbd976ae544720a4e07120d9a91b2722440
- https://github.com/mastodon/mastodon/releases/tag/v4.0.5
- https://github.com/mastodon/mastodon/releases/tag/v4.1.3
- http://www.openwall.com/lists/oss-security/2023/07/06/4