Cisco IOS User Datagram Protocol Delivery Issue For IPv4/IPv6 Dual-stack Routers - Cisco Systems

high Nessus Plugin ID 49011

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Synopsis

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

Description

A device running Cisco IOS software that has Internet Protocol version 6 (IPv6) enabled may be subject to a denial of service (DoS) attack.
For the device to be affected by this vulnerability the device also has to have certain Internet Protocol version 4 (IPv4) User Datagram Protocol (UDP) services enabled. To exploit this vulnerability an offending IPv6 packet must be targeted to the device. Packets that are routed throughout the router can not trigger this vulnerability.
Successful exploitation will prevent the interface from receiving any additional traffic. The only exception is Resource Reservation Protocol (RSVP) service, which if exploited, will cause the device to crash.
Only the interface on which the vulnerability was exploited will be affected.
Cisco is providing fixed software to address this issue. There are workarounds available to mitigate the effects of the vulnerability.

Solution

Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20080326-IPv4IPv6.

See Also

http://www.nessus.org/u?c2349059

http://www.nessus.org/u?2502d726

Plugin Details

Severity: High

ID: 49011

File Name: cisco-sa-20080326-IPv4IPv6http.nasl

Version: 1.24

Type: local

Family: CISCO

Published: 9/1/2010

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2008-1153

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/26/2008

Vulnerability Publication Date: 3/26/2008

Reference Information

CVE: CVE-2008-1153

BID: 28461

CERT: 936177

CISCO-SA: cisco-sa-20080326-IPv4IPv6

CISCO-BUG-ID: CSCse56501