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IPS Signatures

SYN Flood DOS

 
Signature ID: 6009/0
Original Release:S214
Release:S593 (download)
Original Release Date:2008 September 04
Latest Release Date:2011 September 07
Default Enabled:False
Default Retired:True
CVE:CVE-2012-3073
Alarm Severity:Medium
Fidelity:85 

Description

This signature detects a flood of TCP SYN packets at a rate of 100 per second or greater.

Recommended Filter

Filter systems invoking automated connections as sources for this alarm.

Benign Triggers

Legitimate automated processes may cause this signature to fire.

IntelliShield Alerts

IntelliShield ID Headline VersionCVSS ScoreLast Published
76Syn Flood Denial of Service12000 May 01 16:00 GMT
179UDP Bomb Activity12000 May 01 16:00 GMT
180Half-Open SYN Session Issue12000 May 01 16:00 GMT
213Remote Host Operating System Detection Activity12000 May 01 16:00 GMT
3241BlackICE Defender?Buffer Overflow?Vulnerability32002 February 09 18:17 GMT
3874FreeBSD Accept Filters Denial of Service Vulnerability12002 May 30 18:34 GMT
7569TCP Connection Reset Vulnerability222014 September 18 17:19 GMT
8889Microsoft Windows LAND Attack Denial of Service Issue62006 October 10 22:05 GMT
9037Multiple Vendor ICMP Packet TCP/IP Denial of Service Vulnerabilities272006 November 30 16:04 GMT
9040Microsoft Windows TCP/IP Remote Code Execution Vulnerability32005 June 14 20:56 GMT
11264Samba Multiple Connections Memory Exhaustion Denial of Service Vulnerability142.7/2.22006 November 29 14:45 GMT
14071Cisco Content Switching Module TCP Packet Handling Denial of Service Vulnerability17.8/6.42007 September 05 16:29 GMT
18938Sun Solaris sockfs Remote HTTP Request Denial of Service Vulnerability17.8/5.82009 August 27 18:02 GMT
22972Cisco Wireless LAN Controller Software ICMP Traffic Denial of Service Vulnerability17.8/6.12011 April 27 14:57 GMT
25370Cisco IOS Software Measurement, Aggregation, and Correlation Engine Denial of Service Vulnerability17.1/5.92012 March 28 16:27 GMT
26341Cisco TelePresence?Manager, Multipoint Switch, and Recording Server Crafted TCP/IP?Traffic Denial of Service Vulnerability17.8/7.42012 July 11 16:26 GMT
26623Cisco VC220 Network Dome Camera and Cisco VC240 Network Bullet Camera Denial of Service Vulnerabilites15.0/4.82013 July 31 20:50 GMT
26897Cisco IOS Software IP NAT Denial of Service Vulnerability17.8/6.42012 September 26 16:24 GMT
28330Cisco Unified Presence Server Denial of Service Vulnerability17.8/6.42013 February 27 16:09 GMT
29561Microsoft Windows Kernel-Mode Driver TCP/IP Processing Denial of Service Vulnerability17.8/5.82013 June 11 17:52 GMT
29727Multiple Cisco Products IronPort Spam Quarantine Denial of Service Vulnerability17.8/6.42013 June 26 16:24 GMT
29728Multiple Cisco Products Management GUI Denial of Service Vulnerability17.8/6.42013 June 26 16:28 GMT
30426Cisco Unified Communications Manager IM and Presence Service Denial of Service Vulnerability17.8/6.42013 August 21 16:08 GMT
30430Cisco Prime Central for Hosted Collaboration Solution Assurance TCP Flood Memory Exhaustion Denial of Service Vulnerability17.8/6.42013 August 21 16:14 GMT

Download

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

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