Server-Side Request Forgery (SSRF) in Asterisk Open Source - CVE-2022-26499
Published: April 19, 2022
Vulnerability identifier: #VU62390
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2022-26499
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input, if STIR/SHAKEN is used. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
Affected software
Asterisk Open Source
Debian Linux
asterisk (Debian package)
Debian Linux
asterisk (Debian package)
How to mitigate CVE-2022-26499
Install updates from vendor's website.
Asterisk Open Source - addressed in versions 16.25.2, 18.11.2, 19.3.2
asterisk (Debian package) - update to 1:16.28.0~dfsg-0+deb11u1
asterisk (Debian package) - update to 1:16.28.0~dfsg-0+deb11u1