CVE-2025-1131
Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation
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.
INFO
Published Date :
Sept. 23, 2025, 5:15 a.m.
Last Modified :
Sept. 23, 2025, 5:15 a.m.
Remotely Exploit :
No
Source :
b7efe717-a805-47cf-8e9a-921fca0ce0ce
Affected Products
The following products are affected by CVE-2025-1131
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | b7efe717-a805-47cf-8e9a-921fca0ce0ce | ||||
| CVSS 4.0 | HIGH | b7efe717-a805-47cf-8e9a-921fca0ce0ce |
Solution
- Ensure only trusted users can write to startup directories.
- Validate ownership and permissions of scripts in startup directories.
- Remove or disable untrusted scripts in startup directories.
- Restart the Asterisk service after applying changes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-1131.
| URL | Resource |
|---|---|
| https://github.com/asterisk/asterisk/security/advisories/GHSA-v9q8-9j8m-5xwp |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-1131 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-1131
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-1131 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-1131 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by b7efe717-a805-47cf-8e9a-921fca0ce0ce
Sep. 23, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:C/RE:H/U:Amber Added CWE CWE-427 Added Reference https://github.com/asterisk/asterisk/security/advisories/GHSA-v9q8-9j8m-5xwp