CVE-2025-1131

Name	CVE-2025-1131
Description	A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions. Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4326-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asterisk (PTS)	bullseye	1:16.28.0~dfsg-0+deb11u4	vulnerable
	bullseye (security)	1:16.28.0~dfsg-0+deb11u8	fixed
	sid	1:22.5.2~dfsg+~cs6.15.60671435-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
asterisk	source	bullseye	1:16.28.0~dfsg-0+deb11u8		DLA-4326-1
asterisk	source	(unstable)	1:22.5.1~dfsg+~cs6.15.60671435-1

Notes

https://github.com/asterisk/asterisk/security/advisories/GHSA-v9q8-9j8m-5xwp
https://github.com/asterisk/asterisk/commit/f97361952023625e8dd49ca03454777fad19fedb (23.0.0-pre1)
https://github.com/asterisk/asterisk/commit/7ba06dc6ee5efd4edfe79690ad8d61a33b92ce3d (22.5.1)