Short Name |
VOIP:SIP:BRUTE-INV |
---|---|
Severity |
Medium |
Recommended |
No |
Category |
VOIP |
Keywords |
BRUTE INVITE |
Release Date |
2007/11/20 |
Update Number |
1213 |
Supported Platforms |
idp-4.0.110090709+, isg-3.1.134269+ |
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.
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.