SB2019120226 - Improper access control in asterisk (Alpine package)
Published: December 2, 2019
Security Bulletin ID
SB2019120226
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2019-18790)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted SIP request, change a SIP peer’s IP address and hijack the calls.
Note: This vulnerability is only exploitable when the “nat” option is set to the default, or “auto_force_rport”.
Remediation
Install update from vendor's website.