CVE-2024-35190 Asterisk' res_pjsip_endpoint_identifier_ip: wrongly matches ALL unauthorized SIP requests
Unauthorized SIP requests are incorrectly identified as local endpoints, bypassing authentication checks in Asterisk PBX systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-35190?
CVE-2024-35190 is a medium-severity authentication bypass vulnerability in asterisk, published on 17 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Asterisk is an open source private branch exchange and telephony toolkit. After upgrade to 18.23.0, ALL unauthorized SIP requests are identified as PJSIP Endpoint of local asterisk server. This vulnerability is fixed in 18.23.1, 20.8.1, and 21.3.1.
Which versions are affected by CVE-2024-35190?
It affects 1 product.
Products include Sangoma Asterisk.
How do I fix CVE-2024-35190?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-35190 being exploited?
There is no known exploitation of CVE-2024-35190 in the wild and no public exploit code.
Other vulnerabilities in asterisk
- CVE-2024-57520 Path traversal in n/a
- CVE-2025-47779 Using malformed From header can forge identity with ";" or NULL in name portion
- CVE-2025-57767 Asterisk can crash from a specifically malformed Authorization header in an incoming SIP request
- CVE-2022-37325 Memory corruption in n/a
- CVE-2025-1131 Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation
Sources
Also known as ALPINE-CVE-2024-35190, GHSA-qqxj-v78h-hrf9, UBUNTU-CVE-2024-35190.