{"id":"CVE-2010-0685","details":"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functionality that is already available.","modified":"2026-01-27T04:10:11.994571Z","published":"2010-02-23T20:30:00Z","withdrawn":"2026-01-27T04:10:11.994571Z","references":[{"type":"EVIDENCE","url":"http://downloads.digium.com/pub/security/AST-2010-002.html"},{"type":"ADVISORY","url":"http://secunia.com/advisories/38641"},{"type":"ADVISORY","url":"http://secunia.com/advisories/39096"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2010/0439"},{"type":"WEB","url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html"},{"type":"WEB","url":"http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/509608/100/0/threaded"},{"type":"WEB","url":"http://www.securitytracker.com/id?1023637"},{"type":"WEB","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/56397"}],"schema_version":"1.7.3"}