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.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2010-02-23 12:30
Updated : 2018-10-10 12:53
NVD link : CVE-2010-0685
Mitre link : CVE-2010-0685
JSON object : View
CWE
Products Affected
digium
- asterisk