The design of the dialplan functionality in Asterisk Open Source 1.2.x, 1.4.x, and 1.6.x; and Asterisk Business Edition B.x.x and C.x.x, when using the ${EXTEN} channel variable and wildcard pattern matches, allows context-dependent attackers to inject strings into the dialplan using metacharacters that are injected when the variable is expanded, as demonstrated using the Dial application to process a crafted SIP INVITE message that adds an unintended outgoing channel leg. NOTE: it could be argued that this is not a vulnerability in Asterisk, but a class of vulnerabilities that can occur in any program that uses this feature without the associated filtering functionality that is already available.
2010-02-23T20:30:00.780
2025-04-11T00:51:21.963
Deferred
CVSSv2: 5.0 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:P/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 | 1.2.6 | Yes |
| Application | digium | asterisk | 1.2.7 | Yes |
| Application | digium | asterisk | 1.2.8 | Yes |
| Application | digium | asterisk | 1.2.9 | 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 | 1.2.35 | Yes |
| Application | digium | asterisk | 1.2.36 | 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 | 1.4.8 | Yes |
| Application | digium | asterisk | 1.4.9 | Yes |
| Application | digium | asterisk | 1.4.10 | Yes |
| Application | digium | asterisk | 1.4.11 | Yes |
| Application | digium | asterisk | 1.4.12 | 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 | 1.4.17 | Yes |
| Application | digium | asterisk | 1.4.18 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.24 | Yes |
| Application | digium | asterisk | 1.4.25 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.6.0 | Yes |
| Application | digium | asterisk | 1.6.1 | Yes |
| Application | digium | asterisk | 1.6.1.0 | No |
| Application | digium | asterisk | 1.6.2.0 | No |
| 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.1.0 | Yes |
| Application | digium | asterisk | c.1.0 | Yes |
| Application | digium | asterisk | c.1.6 | Yes |
| Application | digium | asterisk | c.1.6.1 | Yes |
| Application | digium | asterisk | c.1.6.2 | Yes |
| Application | digium | asterisk | c.1.8.0 | Yes |
| Application | digium | asterisk | c.1.8.1 | Yes |
| Application | digium | asterisk | c.2.3 | Yes |
| Application | digium | asterisk | c.3.0 | Yes |