CVE-2020-3230

Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerability

State: Published
Severity: 7.5 High
Published: Jun 3, 2020
Updated: Nov 15, 2024
Reserved: Dec 12, 2019

Description

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent IKEv2 from establishing new security associations. The vulnerability is due to incorrect handling of crafted IKEv2 SA-Init packets. An attacker could exploit this vulnerability by sending crafted IKEv2 SA-Init packets to the affected device. An exploit could allow the attacker to cause the affected device to reach the maximum incoming negotiation limits and prevent further IKEv2 security associations from being formed.

Scores

CVSS	Score	Vector	Source
3.0	7.5 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	cisco

Weaknesses

CWE-20

Affected Products

Product	Versions
Cisco IOS 15.1(2)TCisco	n/aAffected

References

20200603 Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerabilityvendor-advisory

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