Asterisk Information Disclosure (AST-2014-011) (POODLE)
Medium Nessus Plugin ID 78623
A telephony application running on the remote host is affected by an information disclosure vulnerability.
According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by an error related to the way SSL 3.0 handles padding bytes when decrypting messages encrypted using block ciphers in cipher block chaining (CBC) mode. A man-in-the-middle attacker can decrypt a selected byte of a cipher text in as few as 256 tries if they are able to force a victim application to repeatedly send the same data over newly created SSL 3.0 connections. This is also known as the 'POODLE' issue. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Upgrade to Asterisk 220.127.116.11 / 11.13.1 / 12.6.1 / 1.8.28-cert2 / 11.6-cert7 or apply the appropriate patch listed in the Asterisk advisory.