IPS risk rating
The IPS risk Rating for an IPS sig is calulating using 4 components: Target Value Rating Alet severity rating Signature Fidelity Rating Attack relevancy Rating
Tag: IPS
Atomic attacks
when configuring an IPS in promiscious mode, Atomic attacks (single packet attacks) NOT be stopped.
Anti-X
Virus and phishing protection IPS Content and URL filtering are technologieswhich are included in the Anti-X.
The Cisco IOS-IPS functionality: To activate new signatures you download a new signature definition file (SDF) frim Ciscos website Loading and enabling selected IPS signatures is user configurable
Sending IPS alert messages
IOS IPS sends IPS alert messages using two protocols: SDEE SYSLOG
Performing IPS deny actions
By defualt, to perform IPS deny actions, the ACLÂ is applied when using IOS-IPS, to the ingress interface of the offending packet.
IPS device in a single interface VLAN-pairing mode
When an IPS device in a single interface VLAN-pairing mode fires a signature from the normalizer engine and TCP based packets are dropped: There was no information in the IPS
Continue reading…IPS device in a single interface VLAN-pairing mode
IPS Signature Characteristics
Signature: scans packets looking for a match to known patterns- DB needs update Anomly: tends to report more false positive alarms- can detect zeroday exploits
IPS signature creation
6000 BitTorrent File download signature was created by an IPS admin using creation tool