Critical OpenWrt Vulnerability Exposes Devices to Malicious Firmware Injection

A security flaw has been disclosed in OpenWrt's Attended Sysupgrade ASU feature that, if successfully exploited, could have been abused to distribute malicious firmware packages. The vulnerability, tracked as CVE-2024-54143, carries a CVSS score of 9.3 out of a maximum of 10, indicating critical...

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...

CVE-2024-54143

creationtimestamp| type| source ---|---|--- 2024-12-06 16:25:42+00:00| seen| https://infosec.exchange/users/cve/statuses/113606809513943170 2024-12-06 18:58:12+00:00| seen| https://t.me/cvedetector/12246 2024-12-09 14:20:03+00:00| seen| https://t.me/habrcomnews/32682 2024-12-10 01:02:23+00:00|...

CVE-2024-54143 openwrt/asu allows build artifact poisoning via truncated SHA-256 hash and command injection

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...

CVE-2024-54143 openwrt/asu allows build artifact poisoning via truncated SHA-256 hash and command injection

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...

CVE-2024-54143

CVE-2024-54143 affects OpenWrt ASU (image-on-demand server). The build request hash truncates SHA-256 to 12 characters, lowering entropy and enabling potential hash collisions. An attacker could poison the artifact cache by serving a previously built malicious image, possibly combined with a comm...

CVE-2024-54143 openwrt/asu allows build artifact poisoning via truncated SHA-256 hash and command injection

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...

Security Advisory 2024-12-06-1 - OpenWrt Attended SysUpgrade server: Build artifact poisoning via truncated SHA-256 hash and command injection (CVE-2024-54143)

DESCRIPTION Due to the combination of the command injection in the imagebuilder image and the truncated SHA-256 hash included in the build request hash, an attacker can pollute the legitimate image by providing a package list that causes the hash collision. The issue consists of two main...