CVE-2025-1131

Severity CVSS v4.0:

HIGH

Type:

CWE-427 Uncontrolled Search Path Element

Publication date:

23/09/2025

Last modified:

23/09/2025

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.<br /> <br /> <br /> 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.

Impact

Vector 4.0

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber CVSS v4.0 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): Low
User Interaction (UI): Passsive
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): High
Integrity (SI): High
Availability (SA): None
Value Density (V): Concentrated
Vulnerability Response Effort (RE): High
Provider Urgency (U): Amber

Base Score 4.0

7.00

Severity 4.0

HIGH

References to Advisories, Solutions, and Tools

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