Cisco IOS Software Internet Key Exchange Version 1 DoS (cisco-sa-20180328-ike-dos)

high Nessus Plugin ID 131321

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Synopsis

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

Description

According to its self-reported version, Cisco IOS is affected by a denial of service (DoS) vulnerability in its Internet Key Exchange Version 1 (IKEv1) functionality due to improper validation of specific IKEv1 packets. An unauthenticated, remote attacker can exploit this by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit allows the attacker to cause an affected device to reload, resulting in a DoS condition.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID(s) CSCuj73916.

Plugin Details

Severity: High

ID: 131321

File Name: cisco-sa-20180328-ike-dos-ios.nasl

Version: 1.13

Type: combined

Family: CISCO

Published: 11/27/2019

Updated: 4/25/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

CVSS Score Source: CVE-2018-0159

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/28/2018

Vulnerability Publication Date: 3/28/2018

CISA Known Exploited Vulnerability Due Dates: 3/17/2022

Reference Information

CVE: CVE-2018-0159

BID: 103562

CISCO-SA: cisco-sa-20180328-ike-dos

CISCO-BUG-ID: CSCuj73916

Detections

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