CVE-2020-3303: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Denial of Service Vulnerability
First published: Wed May 06 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.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 |
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Reference Links
Frequently Asked Questions
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.
Who is affected by CVE-2020-3303?
The vulnerability affects Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
What is the severity of CVE-2020-3303?
The severity of CVE-2020-3303 is high, with a severity value of 7.5.
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.
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.
- collector/nvd-api
- collector/nvd-index
- agent/weakness
- agent/author
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- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/references
- agent/title
- agent/description
- agent/tags
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- vendor/cisco
- canonical/cisco adaptive security appliance
- canonical/cisco adaptive security appliance software
- version/cisco adaptive security appliance software/9.7
- version/cisco adaptive security appliance software/9.9
- version/cisco adaptive security appliance software/9.12
- canonical/cisco asa 5505
- canonical/cisco asa 5510
- canonical/cisco asa 5512-x
- canonical/cisco asa 5515-x
- canonical/cisco asa 5520
- canonical/cisco asa 5525-x
- canonical/cisco asa 5550
- canonical/cisco asa 5555-x
- canonical/cisco asa 5580
- canonical/cisco asa 5585-x
- canonical/cisco firepower threat defense
- version/cisco firepower threat defense/6.4.0