CVE-2024-24756

01.02.2024, 23:15

Crafatar serves Minecraft avatars based on the skin for use in external applications. Files outside of the `lib/public/` directory can be requested from the server. Instances running behind Cloudflare (including crafatar.com) are not affected. Instances using the Docker container as shown in the README are affected, but only files within the container can be read. By default, all of the files within the container can also be found in this repository and are not confidential. This vulnerability is patched in 2.1.5.

Path Traversal

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub_M	CNA	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE	ADP	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 49%

Vendor	Product	Version
crafatar	crafatar	𝑥 < 2.1.5

𝑥

= Vulnerable software versions

Known Exploits!

Common Weakness Enumeration

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References

https://github.com/crafatar/crafatar/blob/e0233f2899a3206a817d2dd3b80da83d51c7a726/lib/server.js#L64-L67

https://github.com/crafatar/crafatar/commit/bba004acc725b362a5d2d5dfe30cf60e7365a373

https://github.com/crafatar/crafatar/security/advisories/GHSA-5cxq-25mp-q5f2

https://github.com/crafatar/crafatar/blob/e0233f2899a3206a817d2dd3b80da83d51c7a726/lib/server.js#L64-L67

https://github.com/crafatar/crafatar/commit/bba004acc725b362a5d2d5dfe30cf60e7365a373

https://github.com/crafatar/crafatar/security/advisories/GHSA-5cxq-25mp-q5f2