SIP: Brute Force Invite
This protocol anomaly triggers when the frequency of the INVITE's, between a unique pair of hosts, exceeds the preset threshold (sc_sip_invites_per_min). You can configure the number of INVITE's in your security policy's Sensor Settings.
Extended Description
Microsoft Communicator, and Communicator in Microsoft Office 2010 beta, allows remote attackers to cause a denial of service (memory consumption) via a large number of SIP INVITE requests, which trigger the creation of many sessions.
Affected Products
Microsoft office_communicator
References
CVE: CVE-2008-5180
Short Name
VOIP:SIP:BRUTE-INV
Severity
Minor
Recommended
False
Recommended Action
None
Category
VOIP
Keywords
BRUTE CVE-2008-5180 INVITE
Release Date
11/20/2007
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
3336
False Positive
Unknown
Vendors
Microsoft
CVSS Score
5.0