CVE-2020-3303: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability

Published May 6, 2020
·
Updated

A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.

Affected Software

16 affected components
cisco Adaptive Security Appliance<9.6.4.36
Cisco Adaptive Security Appliance Software>=9.7<9.8.4.10
Cisco Adaptive Security Appliance Software>=9.9<9.10.1.30
Cisco Adaptive Security Appliance Software>=9.12<9.12.2.9
Cisco Asa 5505
Cisco Asa 5510
cisco Asa 5512-x
cisco Asa 5515-x
Cisco Asa 5520
cisco Asa 5525-x
Cisco Asa 5550
cisco Asa 5555-x
Cisco Asa 5580
Cisco Asa 5585-x
Cisco Firepower Threat Defense<6.3.0.5
Cisco Firepower Threat Defense>=6.4.0<6.4.0.6

Event History

May 6, 2020
CVE Published
via MITRE·04:42 PM
Data Sourced
via MITRE·04:42 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is CVE-2020-3303?

CVE-2020-3303 is a vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

2

Who is affected by CVE-2020-3303?

The vulnerability affects Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.

3

What is the severity of CVE-2020-3303?

The severity of CVE-2020-3303 is high, with a severity value of 7.5.

4

How can an attacker exploit CVE-2020-3303?

An unauthenticated, remote attacker can exploit CVE-2020-3303 by sending specially crafted IKEv1 packets to the affected software, causing a denial of service (DoS) condition.

5

Is there a fix for CVE-2020-3303?

Yes, Cisco has released software updates to address the vulnerability. It is recommended to install the latest updates provided by Cisco.

Contact

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