CVE-2010-0685

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.

• http://downloads.digium.com/pub/security/AST-2010-002.htmlExploit, Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html
• http://secunia.com/advisories/38641Vendor Advisory
• http://secunia.com/advisories/39096
• http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt
• http://www.securityfocus.com/archive/1/509608/100/0/threaded
• http://www.securitytracker.com/id?1023637
• http://www.vupen.com/english/advisories/2010/0439Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/56397
• http://downloads.digium.com/pub/security/AST-2010-002.htmlExploit, Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html
• http://secunia.com/advisories/38641Vendor Advisory
• http://secunia.com/advisories/39096
• http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt
• http://www.securityfocus.com/archive/1/509608/100/0/threaded
• http://www.securitytracker.com/id?1023637
• http://www.vupen.com/english/advisories/2010/0439Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/56397

Published

Feb 23, 2010

Last Modified

Jun 16, 2026

Status

Modified

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