CVE-2023-20006
First published: Wed Jun 28 2023(Updated: )
A vulnerability in the hardware-based SSL/TLS cryptography functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to an implementation error within the cryptographic functions for SSL/TLS traffic processing when they are offloaded to the hardware. An attacker could exploit this vulnerability by sending a crafted stream of SSL/TLS traffic to an affected device. A successful exploit could allow the attacker to cause an unexpected error in the hardware-based cryptography engine, which could cause the device to reload.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Threat Defense | =7.2.1 | |
| Cisco Firepower Threat Defense | =7.2.2 | |
| Cisco Firepower Threat Defense | =7.2.3 | |
| Cisco Adaptive Security Appliance Software | =9.16.4 | |
| Cisco Adaptive Security Appliance Software | =9.18.2 | |
| Cisco Adaptive Security Appliance Software | =9.18.2.5 | |
| Cisco Firepower 2110 | ||
| Cisco Firepower 2120 | ||
| Cisco Firepower 2130 | ||
| Cisco Firepower 2140 | ||
| All of | ||
| Any of | ||
| Cisco Firepower Threat Defense | =7.2.1 | |
| Cisco Firepower Threat Defense | =7.2.2 | |
| Cisco Firepower Threat Defense | =7.2.3 | |
| Cisco Adaptive Security Appliance Software | =9.16.4 | |
| Cisco Adaptive Security Appliance Software | =9.18.2 | |
| Cisco Adaptive Security Appliance Software | =9.18.2.5 | |
| Any of | ||
| Cisco Firepower 2110 | ||
| Cisco Firepower 2120 | ||
| Cisco Firepower 2130 | ||
| Cisco Firepower 2140 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2023-20006?
CVE-2023-20006 is a vulnerability in the hardware-based SSL/TLS cryptography functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
How does CVE-2023-20006 affect Cisco Firepower Threat Defense?
CVE-2023-20006 affects Cisco Firepower Threat Defense versions 7.2.1, 7.2.2, and 7.2.3.
How does CVE-2023-20006 affect Cisco Adaptive Security Appliance Software?
CVE-2023-20006 affects Cisco Adaptive Security Appliance Software versions 9.16.4, 9.18.2, and 9.18.2.5.
What is the severity of CVE-2023-20006?
CVE-2023-20006 has a severity rating of 7.5 (high).
Is there a fix available for CVE-2023-20006?
Yes, Cisco has released a security advisory with mitigation details for CVE-2023-20006. Please refer to the Cisco Security Advisory for more information.
- collector/nvd-index
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/cisco
- canonical/cisco firepower threat defense
- version/cisco firepower threat defense/7.2.1
- version/cisco firepower threat defense/7.2.2
- version/cisco firepower threat defense/7.2.3
- canonical/cisco adaptive security appliance software
- version/cisco adaptive security appliance software/9.16.4
- version/cisco adaptive security appliance software/9.18.2
- version/cisco adaptive security appliance software/9.18.2.5
- canonical/cisco firepower 2110
- canonical/cisco firepower 2120
- canonical/cisco firepower 2130
- canonical/cisco firepower 2140