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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


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Vulnerability Assessment Details

CSCdp58462

Vulnerability Assessment Summary
Uses SNMP to determine if a flaw is present

Detailed Explanation for this Vulnerability Assessment

The Open Shortest Path First (OSPF) implementation in the remote
Cisco IOS software versions is vulnerable to a denial of service
if it receives a flood of neighbor announcements in which more than
255 hosts try to establish a neighbor relationship per interface.

A possible hacker may use this flaw to prevent your router from working
properly

This vulnerability is documented as Cisco Bug ID CSCdp58462.

Solution :
http://www.cisco.com/warp/public/707/cisco-sn-20030221-ospf.shtml
Network Security Threat Level: Critical

*** As Nessus solely relied on the banner of the remote host
*** this might be a false positive


Networks Security ID: 6895

Vulnerability Assessment Copyright: This script is (C) 2003 Renaud Deraison

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