cisco-sa-20180328-ike-dos: Cisco IOS and IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability
First published: Wed Mar 28 2018(Updated: )
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 has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos This advisory is part of the March 28, 2018, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 20 Cisco Security Advisories that describe 22 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: March 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS | ||
| Cisco IOS XE Software |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-20180328-ike-dos?
The cisco-sa-20180328-ike-dos vulnerability has a high severity rating as it can lead to a denial of service condition.
How do I fix cisco-sa-20180328-ike-dos?
To fix cisco-sa-20180328-ike-dos, you should apply the recommended software updates or patches provided by Cisco.
Who is affected by cisco-sa-20180328-ike-dos?
Cisco IOS Software and Cisco IOS XE Software users are affected by the cisco-sa-20180328-ike-dos vulnerability.
What kind of attack does cisco-sa-20180328-ike-dos allow?
The cisco-sa-20180328-ike-dos vulnerability allows an unauthenticated remote attacker to trigger a device reload.
Can cisco-sa-20180328-ike-dos be exploited remotely?
Yes, the cisco-sa-20180328-ike-dos vulnerability can be exploited by an unauthenticated remote attacker.
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