CVE-2025-1131

moderate-risk

Published 2025-09-23

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.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (20)

Asterisk

Certified Asterisk

Affected Vendors

Sangoma

References (2)

Exploit https://github.com/asterisk/asterisk/security/advisories/GHSA-v9q8-9j8m-5xwp

https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 0/34 · Minimal

Exposure 22/34 · High