Asterisk Open Source 1.2.x before 1.2.26 and 1.4.x before 1.4.16, and Business Edition B.x.x before B.2.3.6 and C.x.x before C.1.0-beta8, when using database-based registrations (realtime) and host-based authentication, does not check the IP address when the username is correct and there is no password, which allows remote attackers to bypass authentication using a valid username.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asterisk_business_edition | Asterisk | b.1.3.2 (including) | b.1.3.2 (including) |
| Asterisk_business_edition | Asterisk | b.1.3.3 (including) | b.1.3.3 (including) |
| Asterisk_business_edition | Asterisk | b.2.2.0 (including) | b.2.2.0 (including) |
| Asterisk_business_edition | Asterisk | b.2.2.1 (including) | b.2.2.1 (including) |
| Asterisk_business_edition | Asterisk | b.2.3.1 (including) | b.2.3.1 (including) |
| Asterisk_business_edition | Asterisk | b.2.3.2 (including) | b.2.3.2 (including) |
| Asterisk_business_edition | Asterisk | b.2.3.3 (including) | b.2.3.3 (including) |
| Asterisk_business_edition | Asterisk | b.2.3.4 (including) | b.2.3.4 (including) |
| Asterisk_business_edition | Asterisk | c.1.0beta7 (including) | c.1.0beta7 (including) |
| Open_source | Asterisk | 1.2.0beta1 (including) | 1.2.0beta1 (including) |
| Open_source | Asterisk | 1.2.0beta2 (including) | 1.2.0beta2 (including) |
| Open_source | Asterisk | 1.2.5 (including) | 1.2.5 (including) |
| Open_source | Asterisk | 1.2.6 (including) | 1.2.6 (including) |
| Open_source | Asterisk | 1.2.7 (including) | 1.2.7 (including) |
| Open_source | Asterisk | 1.2.8 (including) | 1.2.8 (including) |
| Open_source | Asterisk | 1.2.9 (including) | 1.2.9 (including) |
| Open_source | Asterisk | 1.2.10 (including) | 1.2.10 (including) |
| Open_source | Asterisk | 1.2.11 (including) | 1.2.11 (including) |
| Open_source | Asterisk | 1.2.13 (including) | 1.2.13 (including) |
| Open_source | Asterisk | 1.2.14 (including) | 1.2.14 (including) |
| Open_source | Asterisk | 1.2.15 (including) | 1.2.15 (including) |
| Open_source | Asterisk | 1.2.16 (including) | 1.2.16 (including) |
| Open_source | Asterisk | 1.2.17 (including) | 1.2.17 (including) |
| Open_source | Asterisk | 1.2.18 (including) | 1.2.18 (including) |
| Open_source | Asterisk | 1.2.19 (including) | 1.2.19 (including) |
| Open_source | Asterisk | 1.2.21 (including) | 1.2.21 (including) |
| Open_source | Asterisk | 1.2.22 (including) | 1.2.22 (including) |
| Open_source | Asterisk | 1.2.23 (including) | 1.2.23 (including) |
| Open_source | Asterisk | 1.2.24 (including) | 1.2.24 (including) |
| Open_source | Asterisk | 1.2.25 (including) | 1.2.25 (including) |
| Open_source | Asterisk | 1.4.1 (including) | 1.4.1 (including) |
| Open_source | Asterisk | 1.4.2 (including) | 1.4.2 (including) |
| Open_source | Asterisk | 1.4.3 (including) | 1.4.3 (including) |
| Open_source | Asterisk | 1.4.4 (including) | 1.4.4 (including) |
| Open_source | Asterisk | 1.4.5 (including) | 1.4.5 (including) |
| Open_source | Asterisk | 1.4.6 (including) | 1.4.6 (including) |
| Open_source | Asterisk | 1.4.7 (including) | 1.4.7 (including) |
| Open_source | Asterisk | 1.4.8 (including) | 1.4.8 (including) |
| Open_source | Asterisk | 1.4.9 (including) | 1.4.9 (including) |
| Open_source | Asterisk | 1.4.10 (including) | 1.4.10 (including) |
| Open_source | Asterisk | 1.4.11 (including) | 1.4.11 (including) |
| Open_source | Asterisk | 1.4.12 (including) | 1.4.12 (including) |
| Open_source | Asterisk | 1.4.13 (including) | 1.4.13 (including) |
| Open_source | Asterisk | 1.4.14 (including) | 1.4.14 (including) |
| Open_source | Asterisk | 1.4.15 (including) | 1.4.15 (including) |
| Open_source | Asterisk | 1.4beta (including) | 1.4beta (including) |
| Asterisk | Ubuntu | dapper | * |
| Asterisk | Ubuntu | devel | * |
| Asterisk | Ubuntu | edgy | * |
| Asterisk | Ubuntu | feisty | * |
| Asterisk | Ubuntu | gutsy | * |
| Asterisk | Ubuntu | hardy | * |
| Asterisk | Ubuntu | intrepid | * |
| Asterisk | Ubuntu | jaunty | * |
| Asterisk | Ubuntu | karmic | * |
| Asterisk | Ubuntu | upstream | * |