Signature Detail
Short Name |
VOIP:SIP:SRV-RESP-401 |
|---|---|
Severity |
Info |
Recommended |
No |
Category |
VOIP |
Keywords |
VOIP SIP Voice Over IP Session Initiation Protocol |
Release Date |
2006/05/24 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.1.134269+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
SIP: Server Response - Unauthorized (401)
This signature detects attempts to exploit a known vulnerability against Session Initiation Protocol (SIP). Detecting a SIP server response of 401, Unauthorized, can indicate a client can be incorrectly configured or can have requested a feature which requires authorization. This can be a common occurrence in a SIP network, but when combined with other event logs, might be an indication of malicious activity.
Extended Description
None
References