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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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CSCdt46181

Vulnerability Assessment Summary Uses SNMP to determine if a flaw is present Detailed Explanation for this Vulnerability Assessment Point-to-Point Tunneling Protocol (PPTP) permits users to tunnel to an Internet Protocol (IP) network using a Point-to-Point Protocol (PPP). The protocol is described in RFC2637. PPTP implementation using Cisco IOS® software releases contains a vulnerability that will crash a router if it receives a malformed or crafted PPTP packet. To expose this vulnerability, PPTP must be enabled on the router. PPTP is disabled by default. No additional special conditions are required. A possible hacker may use this issue to prevent your network from working properly This vulnerability is documented as Cisco Bug ID CSCdt46181 Solution : http://www.cisco.com/warp/public/707/PPTP-vulnerability-pub.html Network Security Threat Level: High *** As Nessus solely relied on the banner of the remote host *** this might be a false positive Networks Security ID: 3022 Vulnerability Assessment Copyright: This script is (C) 2002 Renaud Deraison

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