Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header.
2009-11-10T18:30:00.250
2025-04-09T00:30:58.490
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | digium | asterisk | 1.2.0 | Yes |
| Application | digium | asterisk | 1.2.0 | Yes |
| Application | digium | asterisk | 1.2.0 | Yes |
| Application | digium | asterisk | 1.2.0 | Yes |
| Application | digium | asterisk | 1.2.0 | Yes |
| Application | digium | asterisk | 1.2.1 | Yes |
| Application | digium | asterisk | 1.2.2 | Yes |
| Application | digium | asterisk | 1.2.2 | Yes |
| Application | digium | asterisk | 1.2.3 | Yes |
| Application | digium | asterisk | 1.2.3 | Yes |
| Application | digium | asterisk | 1.2.10 | Yes |
| Application | digium | asterisk | 1.2.10 | Yes |
| Application | digium | asterisk | 1.2.11 | Yes |
| Application | digium | asterisk | 1.2.11 | Yes |
| Application | digium | asterisk | 1.2.12 | Yes |
| Application | digium | asterisk | 1.2.12 | Yes |
| Application | digium | asterisk | 1.2.12.1 | Yes |
| Application | digium | asterisk | 1.2.12.1 | Yes |
| Application | digium | asterisk | 1.2.13 | Yes |
| Application | digium | asterisk | 1.2.13 | Yes |
| Application | digium | asterisk | 1.2.14 | Yes |
| Application | digium | asterisk | 1.2.15 | Yes |
| Application | digium | asterisk | 1.2.15 | Yes |
| Application | digium | asterisk | 1.2.16 | Yes |
| Application | digium | asterisk | 1.2.16 | Yes |
| Application | digium | asterisk | 1.2.17 | Yes |
| Application | digium | asterisk | 1.2.17 | Yes |
| Application | digium | asterisk | 1.2.18 | Yes |
| Application | digium | asterisk | 1.2.18 | Yes |
| Application | digium | asterisk | 1.2.19 | Yes |
| Application | digium | asterisk | 1.2.19 | Yes |
| Application | digium | asterisk | 1.2.20 | Yes |
| Application | digium | asterisk | 1.2.20 | Yes |
| Application | digium | asterisk | 1.2.21 | Yes |
| Application | digium | asterisk | 1.2.21 | Yes |
| Application | digium | asterisk | 1.2.21.1 | Yes |
| Application | digium | asterisk | 1.2.21.1 | Yes |
| Application | digium | asterisk | 1.2.22 | Yes |
| Application | digium | asterisk | 1.2.22 | Yes |
| Application | digium | asterisk | 1.2.23 | Yes |
| Application | digium | asterisk | 1.2.23 | Yes |
| Application | digium | asterisk | 1.2.24 | Yes |
| Application | digium | asterisk | 1.2.24 | Yes |
| Application | digium | asterisk | 1.2.25 | Yes |
| Application | digium | asterisk | 1.2.25 | Yes |
| Application | digium | asterisk | 1.2.26 | Yes |
| Application | digium | asterisk | 1.2.26 | Yes |
| Application | digium | asterisk | 1.2.26.1 | Yes |
| Application | digium | asterisk | 1.2.26.1 | Yes |
| Application | digium | asterisk | 1.2.26.2 | Yes |
| Application | digium | asterisk | 1.2.26.2 | Yes |
| Application | digium | asterisk | 1.2.27 | Yes |
| Application | digium | asterisk | 1.2.28 | Yes |
| Application | digium | asterisk | 1.2.28.1 | Yes |
| Application | digium | asterisk | 1.2.29 | Yes |
| Application | digium | asterisk | 1.2.30 | Yes |
| Application | digium | asterisk | 1.2.30.1 | Yes |
| Application | digium | asterisk | 1.2.30.2 | Yes |
| Application | digium | asterisk | 1.2.30.3 | Yes |
| Application | digium | asterisk | 1.2.30.4 | Yes |
| Application | digium | asterisk | 1.2.31 | Yes |
| Application | digium | asterisk | 1.2.31.1 | Yes |
| Application | digium | asterisk | 1.2.32 | Yes |
| Application | digium | asterisk | 1.2.33 | Yes |
| Application | digium | asterisk | 1.2.34 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.1 | Yes |
| Application | digium | asterisk | 1.4.2 | Yes |
| Application | digium | asterisk | 1.4.3 | Yes |
| Application | digium | asterisk | 1.4.4 | Yes |
| Application | digium | asterisk | 1.4.5 | Yes |
| Application | digium | asterisk | 1.4.6 | Yes |
| Application | digium | asterisk | 1.4.7 | Yes |
| Application | digium | asterisk | 1.4.7.1 | Yes |
| Application | digium | asterisk | 1.4.8 | Yes |
| Application | digium | asterisk | 1.4.9 | Yes |
| Application | digium | asterisk | 1.4.10 | Yes |
| Application | digium | asterisk | 1.4.10.1 | Yes |
| Application | digium | asterisk | 1.4.11 | Yes |
| Application | digium | asterisk | 1.4.12 | Yes |
| Application | digium | asterisk | 1.4.12.1 | Yes |
| Application | digium | asterisk | 1.4.13 | Yes |
| Application | digium | asterisk | 1.4.14 | Yes |
| Application | digium | asterisk | 1.4.15 | Yes |
| Application | digium | asterisk | 1.4.16 | Yes |
| Application | digium | asterisk | 1.4.16.1 | Yes |
| Application | digium | asterisk | 1.4.16.2 | Yes |
| Application | digium | asterisk | 1.4.17 | Yes |
| Application | digium | asterisk | 1.4.18 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19.1 | Yes |
| Application | digium | asterisk | 1.4.19.2 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20.1 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.21.1 | Yes |
| Application | digium | asterisk | 1.4.21.2 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22.1 | Yes |
| Application | digium | asterisk | 1.4.22.2 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23.1 | Yes |
| Application | digium | asterisk | 1.4.23.2 | Yes |
| Application | digium | asterisk | 1.4.24 | Yes |
| Application | digium | asterisk | 1.4.24 | Yes |
| Application | digium | asterisk | 1.4.24.1 | Yes |
| Application | digium | asterisk | 1.4.25 | Yes |
| Application | digium | asterisk | 1.4.25 | Yes |
| Application | digium | asterisk | 1.4.25.1 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26.1 | Yes |
| Application | digium | asterisk | 1.4.26.2 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.0.1 | Yes |
| Application | digium | asterisk | 1.6.0.2 | Yes |
| Application | digium | asterisk | 1.6.0.3 | Yes |
| Application | digium | asterisk | 1.6.0.3 | Yes |
| Application | digium | asterisk | 1.6.0.4 | Yes |
| Application | digium | asterisk | 1.6.0.5 | Yes |
| Application | digium | asterisk | 1.6.0.6 | Yes |
| Application | digium | asterisk | 1.6.0.7 | Yes |
| Application | digium | asterisk | 1.6.0.8 | Yes |
| Application | digium | asterisk | 1.6.0.9 | Yes |
| Application | digium | asterisk | 1.6.0.10 | Yes |
| Application | digium | asterisk | 1.6.0.11 | Yes |
| Application | digium | asterisk | 1.6.0.11 | Yes |
| Application | digium | asterisk | 1.6.0.11 | Yes |
| Application | digium | asterisk | 1.6.0.14 | Yes |
| Application | digium | asterisk | 1.6.0.14 | Yes |
| Application | digium | asterisk | 1.6.0.15 | Yes |
| Application | digium | asterisk | 1.6.0.16 | Yes |
| Application | digium | asterisk | 1.6.0.16 | Yes |
| Application | digium | asterisk | 1.6.0.16 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.1 | Yes |
| Application | digium | asterisk | 1.6.1.2 | Yes |
| Application | digium | asterisk | 1.6.1.3 | Yes |
| Application | digium | asterisk | 1.6.1.4 | Yes |
| Application | digium | asterisk | 1.6.1.5 | Yes |
| Application | digium | asterisk | 1.6.1.5 | Yes |
| Application | digium | asterisk | 1.6.1.6 | Yes |
| Application | digium | asterisk | 1.6.1.7 | Yes |
| Application | digium | asterisk | 1.6.1.7 | Yes |
| Application | digium | asterisk | 1.6.1.8 | Yes |
| Application | digium | asterisk | 1.6.1.10 | Yes |
| Application | digium | asterisk | 1.6.1.10 | Yes |
| Application | digium | asterisknow | 1.5 | Yes |
| Hardware | digium | s800i | 1.3.0 | Yes |
| Hardware | digium | s800i | 1.3.0.2 | Yes |
| Hardware | digium | s800i | 1.3.0.3 | Yes |
| Hardware | digium | s800i | 1.3.0.4 | Yes |
| Application | digium | asterisk | a | Yes |
| Application | digium | asterisk | b | Yes |
| Application | digium | asterisk | b.1.3.2 | Yes |
| Application | digium | asterisk | b.1.3.3 | Yes |
| Application | digium | asterisk | b.2.2.0 | Yes |
| Application | digium | asterisk | b.2.2.1 | Yes |
| Application | digium | asterisk | b.2.3.1 | Yes |
| Application | digium | asterisk | b.2.3.2 | Yes |
| Application | digium | asterisk | b.2.3.3 | Yes |
| Application | digium | asterisk | b.2.3.4 | Yes |
| Application | digium | asterisk | b.2.3.5 | Yes |
| Application | digium | asterisk | b.2.3.6 | Yes |
| Application | digium | asterisk | b.2.5.0 | Yes |
| Application | digium | asterisk | b.2.5.1 | Yes |
| Application | digium | asterisk | b.2.5.2 | Yes |
| Application | digium | asterisk | b.2.5.3 | Yes |
| Application | digium | asterisk | c | Yes |
| Application | digium | asterisk | c.2.3 | Yes |
| Application | digium | asterisk | c.3.0 | Yes |