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.
Weakness
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asterisk | Sangoma | 18.23.0 (including) | 18.23.0 (including) |
| Asterisk | Sangoma | 20.8.0 (including) | 20.8.0 (including) |
| Asterisk | Sangoma | 21.3.0 (including) | 21.3.0 (including) |
| Asterisk | Ubuntu | focal | * |
| Asterisk | Ubuntu | mantic | * |
| Asterisk | Ubuntu | oracular | * |
| Asterisk | Ubuntu | plucky | * |
Related Attack Patterns
References
- https://github.com/asterisk/asterisk/commit/85241bd22936cc15760fd1f65d16c98be7aeaf6d
- https://github.com/asterisk/asterisk/pull/600
- https://github.com/asterisk/asterisk/pull/602
- https://github.com/asterisk/asterisk/security/advisories/GHSA-qqxj-v78h-hrf9
- https://github.com/asterisk/asterisk/commit/85241bd22936cc15760fd1f65d16c98be7aeaf6d
- https://github.com/asterisk/asterisk/pull/600
- https://github.com/asterisk/asterisk/pull/602
- https://github.com/asterisk/asterisk/security/advisories/GHSA-qqxj-v78h-hrf9