CVE-2018-0159: Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability

Description

A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)6.9% · higher than 94% of CVEs

Exploited in the wildYes

CISA KEVListed Mar 3, 2022

Federal remediation dueMar 17, 2022

Ransomware campaign useNot known

Affected products

Which versions

IX

IOS XE · Cisco

15.3(3)s · source: NVD

CI

Cisco IOS and IOS XE ·

Cisco IOS and IOS XE · source: vendor

IO

Ios · Cisco

15.3(3)s · source: NVD

IS

IOS Software and Cisco IOS XE Software · Cisco

All versions, or not specified · source: KEV