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Cisco Security

Cisco PIX and ASA Time-to-Live DoS

 
Signature ID: 6764/0
Original Release:S314
Release:S314 (download)
Original Release Date:2008 February 11
Latest Release Date:2008 February 11
Default Enabled:False
Default Retired:True
CVE:CVE-2008-0028
BugTraq ID:27418
Alarm Severity:Medium
Fidelity:75 

Description

This signature detects a TTL of 0. Typically, when an IP packet's TTL value is decremented to 0 the packet will be discarded. However, an attacker may use a crafted packet to exploit the Cisco PIX and ASA Time-to-Live Vulnerability.

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Benign Triggers

This signature will fire on legitimate IP traffic used during network discovery and management (eg: traceroute). Network administrators can use this signature to detect these packets. By default, this signature is shipped disabled and retired.

IntelliShield Alerts

IntelliShield ID Headline VersionCVSS ScoreLast Published
14946Cisco PIX and Adaptive Security Appliance Time-to-Live Decrement Feature Vulnerability27.8/6.42008 January 25 13:38 GMT

Download

To download this and other IPS update files, please go to Cisco Secure Software Download.

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