VOIP: SIP Random From Header
This signature detects a suspicious SIP From header. This kind of behavior is mostly observed when someone is trying to scan and send malicious traffic against a network security device using various traffic generation tools.
Extended Description
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.
Affected Products
Asterisk open_source
Short Name
VOIP:SIP:RANDOM-FROM-HEADER
Severity
Major
Recommended
False
Recommended Action
Drop
Category
VOIP
Keywords
CVE-2011-4063 From Header Random SIP bid:50177
Release Date
02/28/2017
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown
Vendors
Asterisk
CVSS Score
6.8