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.
2007-12-20T02:46:00.000
2025-04-09T00:30:58.490
Deferred
CVSSv2: 4.3 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | asterisk | asterisk_business_edition | b.1.3.2 | Yes |
| Application | asterisk | asterisk_business_edition | b.1.3.3 | Yes |
| Application | asterisk | asterisk_business_edition | b.2.2.0 | Yes |
| Application | asterisk | asterisk_business_edition | b.2.2.1 | Yes |
| Application | asterisk | asterisk_business_edition | b.2.3.1 | Yes |
| Application | asterisk | asterisk_business_edition | b.2.3.2 | Yes |
| Application | asterisk | asterisk_business_edition | b.2.3.3 | Yes |
| Application | asterisk | asterisk_business_edition | b.2.3.4 | Yes |
| Application | asterisk | asterisk_business_edition | c.1.0beta7 | Yes |
| Application | asterisk | open_source | 1.2.0beta1 | Yes |
| Application | asterisk | open_source | 1.2.0beta2 | Yes |
| Application | asterisk | open_source | 1.2.5 | Yes |
| Application | asterisk | open_source | 1.2.6 | Yes |
| Application | asterisk | open_source | 1.2.7 | Yes |
| Application | asterisk | open_source | 1.2.8 | Yes |
| Application | asterisk | open_source | 1.2.9 | Yes |
| Application | asterisk | open_source | 1.2.10 | Yes |
| Application | asterisk | open_source | 1.2.11 | Yes |
| Application | asterisk | open_source | 1.2.13 | Yes |
| Application | asterisk | open_source | 1.2.14 | Yes |
| Application | asterisk | open_source | 1.2.15 | Yes |
| Application | asterisk | open_source | 1.2.16 | Yes |
| Application | asterisk | open_source | 1.2.17 | Yes |
| Application | asterisk | open_source | 1.2.18 | Yes |
| Application | asterisk | open_source | 1.2.19 | Yes |
| Application | asterisk | open_source | 1.2.21 | Yes |
| Application | asterisk | open_source | 1.2.22 | Yes |
| Application | asterisk | open_source | 1.2.23 | Yes |
| Application | asterisk | open_source | 1.2.24 | Yes |
| Application | asterisk | open_source | 1.2.25 | Yes |
| Application | asterisk | open_source | 1.4.1 | Yes |
| Application | asterisk | open_source | 1.4.2 | Yes |
| Application | asterisk | open_source | 1.4.3 | Yes |
| Application | asterisk | open_source | 1.4.4 | Yes |
| Application | asterisk | open_source | 1.4.5 | Yes |
| Application | asterisk | open_source | 1.4.6 | Yes |
| Application | asterisk | open_source | 1.4.7 | Yes |
| Application | asterisk | open_source | 1.4.8 | Yes |
| Application | asterisk | open_source | 1.4.9 | Yes |
| Application | asterisk | open_source | 1.4.10 | Yes |
| Application | asterisk | open_source | 1.4.11 | Yes |
| Application | asterisk | open_source | 1.4.12 | Yes |
| Application | asterisk | open_source | 1.4.13 | Yes |
| Application | asterisk | open_source | 1.4.14 | Yes |
| Application | asterisk | open_source | 1.4.15 | Yes |
| Application | asterisk | open_source | 1.4beta | Yes |