This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.
The version of Asterisk installed on the remote host may be 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 a username
disclosure vulnerability related to INVITE, SUBSCRIBE and REGISTER
transactions and improper settings for the configuration options
'alwaysauthreject', 'allowguest' and 'autocreatepeer'.
See also :
Upgrade to Asterisk 188.8.131.52 / 10.12.2 / 11.2.2 / Certified Asterisk
1.8.15-cert2 / Asterisk Business Edition C.3.8.1, or apply the
appropriate patch listed in the Asterisk advisory.
Risk factor :
Medium / CVSS Base Score : 5.0
CVSS Temporal Score : 4.1
Public Exploit Available : true