CVE-2024-54143

openwrt/asu is an image on demand server for OpenWrt based distributions. The request hashing mechanism truncates SHA-256 hashes to only 12 characters. This significantly reduces entropy, making it feasible for an attacker to generate collisions. By exploiting this, a previously built malicious image can be served in place of a legitimate one, allowing the attacker to "poison" the artifact cache and deliver compromised images to unsuspecting users. This can be combined with other attacks, such as a command injection in Imagebuilder that allows malicious users to inject arbitrary commands into the build process, resulting in the production of malicious firmware images signed with the legitimate build key. This has been patched with 920c8a1.

The following products are affected by CVE-2024-54143 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-54143.

URL	Resource
https://github.com/openwrt/asu/commit/920c8a13d97b4d4095f0d939cf0aaae777e0f87e
https://github.com/openwrt/asu/security/advisories/GHSA-r3gq-96h6-3v7q