SB2021122228 - Remote code execution in FreePBX Phone Apps module
Published: December 22, 2021 Updated: July 17, 2022
Security Bulletin ID
SB2021122228
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2021-45461)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in the Phone Apps (restapps) module for FreePBX. A remote attacker can send specially crafted input to the application and execute arbitrary code on the system.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.