Asterisk Multiple Vulnerabilities (AST-2014-012 / AST-2014-018)
Medium Nessus Plugin ID 79438
SynopsisA telephony application running on the remote host is affected by multiple vulnerabilities.
DescriptionAccording to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by the following vulnerabilities :
- A security bypass vulnerability exists in the VoIP channel drivers, DUNDi, and Asterisk Manager Interface (AMI) components which may allow a remote attacker to send specially crafted packets that bypass all ACL rules other than the first ACL entry. (CVE-2014-8412)
- A privilege escalation vulnerability exists in the ConfBridge 'dialplan' DB function when executed from an external protocol which could allow a remote, authenticated attacker to escalate privileges.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
SolutionUpgrade to Asterisk 184.108.40.206 / 11.14.1 / 12.7.1 / 13.0.1 / 1.8.28-cert3 / 11.6-cert8 or apply the appropriate patch listed in the Asterisk advisories.