Cisco IOS Malformed PPTP Packet Remote DoS (CSCdt46181)

medium Nessus Plugin ID 10979


The remote device is missing a vendor-supplied security patch.


Point-to-Point Tunneling Protocol (PPTP) allows 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.

An attacker may use this issue to prevent your network from working properly.

This vulnerability is documented as Cisco Bug ID CSCdt46181.


Plugin Details

Severity: Medium

ID: 10979

File Name: CSCdt46181.nasl

Version: 1.21

Type: local

Family: CISCO

Published: 6/5/2002

Updated: 6/27/2018

Supported Sensors: Nessus

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: SNMP/sysDesc, SNMP/community, CISCO/model

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/12/2001

Reference Information

CVE: CVE-2001-1183

BID: 3022