Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asterisk_business_edition | Asterisk | b.2.3.4 (including) | b.2.3.4 (including) |
| Asterisk_business_edition | Asterisk | b.2.3.5 (including) | b.2.3.5 (including) |
| Asterisk_business_edition | Asterisk | b.2.5.0 (including) | b.2.5.0 (including) |
| Asterisk_business_edition | Asterisk | b.2.5.1 (including) | b.2.5.1 (including) |
| Asterisk_business_edition | Asterisk | b.2.5.3 (including) | b.2.5.3 (including) |
| Open_source | Asterisk | 1.2.26 (including) | 1.2.26 (including) |
| Open_source | Asterisk | 1.2.26-netsec (including) | 1.2.26-netsec (including) |
| Open_source | Asterisk | 1.2.26.1 (including) | 1.2.26.1 (including) |
| Open_source | Asterisk | 1.2.26.1-netsec (including) | 1.2.26.1-netsec (including) |
| Open_source | Asterisk | 1.2.26.2 (including) | 1.2.26.2 (including) |
| Open_source | Asterisk | 1.2.26.2-netsec (including) | 1.2.26.2-netsec (including) |
| Open_source | Asterisk | 1.2.27 (including) | 1.2.27 (including) |
| Open_source | Asterisk | 1.2.28 (including) | 1.2.28 (including) |
| Open_source | Asterisk | 1.2.29 (including) | 1.2.29 (including) |
| Open_source | Asterisk | 1.2.30 (including) | 1.2.30 (including) |
| Open_source | Asterisk | 1.2.30.2 (including) | 1.2.30.2 (including) |
| Open_source | Asterisk | 1.2.30.3 (including) | 1.2.30.3 (including) |
| Asterisk | Ubuntu | dapper | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- http://downloads.digium.com/pub/security/AST-2008-012.html
- http://osvdb.org/50675
- http://secunia.com/advisories/32956
- http://secunia.com/advisories/34982
- http://security.gentoo.org/glsa/glsa-200905-01.xml
- http://securityreason.com/securityalert/4769
- http://www.securityfocus.com/archive/1/499117/100/0/threaded
- http://www.securityfocus.com/bid/32773
- http://www.securitytracker.com/id?1021378
- http://www.vupen.com/english/advisories/2008/3403
- http://downloads.digium.com/pub/security/AST-2008-012.html
- http://osvdb.org/50675
- http://secunia.com/advisories/32956
- http://secunia.com/advisories/34982
- http://security.gentoo.org/glsa/glsa-200905-01.xml
- http://securityreason.com/securityalert/4769
- http://www.securityfocus.com/archive/1/499117/100/0/threaded
- http://www.securityfocus.com/bid/32773
- http://www.securitytracker.com/id?1021378
- http://www.vupen.com/english/advisories/2008/3403