7.8

CVE-2018-0159

Warning

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.

Data is provided by the National Vulnerability Database (NVD)
CiscoIos Version15.3(3)s
   CiscoAsr 901-12c-f-d Version-
   CiscoAsr 901-12c-ft-d Version-
   CiscoAsr 901-4c-f-d Version-
   CiscoAsr 901-4c-ft-d Version-
   CiscoAsr 901-6cz-f-a Version-
   CiscoAsr 901-6cz-f-d Version-
   CiscoAsr 901-6cz-ft-a Version-
   CiscoAsr 901-6cz-ft-d Version-
   CiscoMe 3600x-24cx-m Version-
   CiscoMe 3600x-24fs-m Version-
   CiscoMe 3600x-24ts-m Version-
   CiscoMe 3800x-24fs-m Version-
CiscoIos Xe Version15.3(3)s
   CiscoAsr 901-12c-f-d Version-
   CiscoAsr 901-12c-ft-d Version-
   CiscoAsr 901-4c-f-d Version-
   CiscoAsr 901-4c-ft-d Version-
   CiscoAsr 901-6cz-f-a Version-
   CiscoAsr 901-6cz-f-d Version-
   CiscoAsr 901-6cz-ft-a Version-
   CiscoAsr 901-6cz-ft-d Version-
   CiscoMe 3600x-24cx-m Version-
   CiscoMe 3600x-24fs-m Version-
   CiscoMe 3600x-24ts-m Version-
   CiscoMe 3800x-24fs-m Version-

03.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability

Vulnerability

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.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 6.18% 0.899
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.