Cisco IOS Internet Key Exchange Version 2 DoS (cisco-sa-ikev2-9p23Jj2a)

high Nessus Plugin ID 137835

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, IOS is affected by a denial of service (DoS) vulnerability in its Internet Key Exchange (IKE) version 2 implementation due incorrect handling of IKEv2 SA-Init packets. An unauthenticated, remote attacker can exploit this issue, by sending specially crafted IKEv2 SA-Inet packets to an affected host, to cause 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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvp44397

Plugin Details

Severity: High

ID: 137835

File Name: cisco-sa-ikev2-9p23Jj2a-ios.nasl

Version: 1.10

Type: combined

Family: CISCO

Published: 6/26/2020

Updated: 6/3/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-3230

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2020

Vulnerability Publication Date: 6/3/2020

Reference Information

CVE: CVE-2020-3230

CWE: 20

CISCO-SA: cisco-sa-ikev2-9p23Jj2a

IAVA: 2020-A-0239-S

CISCO-BUG-ID: CSCvp44397

Detections

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