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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2010-02-23T20:00:00

Updated: 2024-08-07T00:59:38.329Z

Reserved: 2010-02-22T00:00:00

Link: CVE-2010-0685

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2010-02-23T20:30:00.780

Modified: 2018-10-10T19:53:22.307

Link: CVE-2010-0685

cve-icon Redhat

No data.