CVE - CVE-2010-0685

CVE-ID
CVE-2010-0685	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20100218 AST-2010-002: Dialplan injection vulnerability URL:http://www.securityfocus.com/archive/1/509608/100/0/threaded CONFIRM:http://downloads.digium.com/pub/security/AST-2010-002.html FEDORA:FEDORA-2010-3724 URL:http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html MISC:http://svn.asterisk.org/svn/asterisk/branches/1.2/README-SERIOUSLY.bestpractices.txt SECTRACK:1023637 URL:http://www.securitytracker.com/id?1023637 SECUNIA:38641 URL:http://secunia.com/advisories/38641 SECUNIA:39096 URL:http://secunia.com/advisories/39096 VUPEN:ADV-2010-0439 URL:~~http://www.vupen.com/english/advisories/2010/0439~~ (Obsolete source) XF:asterisk-dial-weak-security(56397) URL:https://exchange.xforce.ibmcloud.com/vulnerabilities/56397
Assigning CNA
MITRE Corporation
Date Record Created
20100222	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20100222)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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