cisco-sa-ftd-ssl-mf3822Z: Cisco Firepower Threat Defense Software SSL Input Validation Denial of Service Vulnerability
First published: Wed Oct 21 2020(Updated: )
A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to crash Snort instances. The vulnerability is due to insufficient input validation in the ssl_inspection component. An attacker could exploit this vulnerability by sending a malformed TLS packet through a Cisco Adaptive Security Appliance (ASA). A successful exploit could allow the attacker to crash a Snort instance, resulting in a denial of service (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-ftd-ssl-mf3822Z
Credit: This vulnerability was found by Santosh Krishnamurthy Cisco during internal security testing
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco FTD Software | =6.4.0<6.4.0.10 | 6.4.0.10 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this Cisco Firepower Threat Defense Software vulnerability?
The vulnerability ID of this Cisco Firepower Threat Defense Software vulnerability is cisco-sa-ftd-ssl-mf3822Z.
What is the title of this vulnerability?
The title of this vulnerability is Cisco Firepower Threat Defense Software SSL Input Validation Denial of Service Vulnerability.
What is the severity of this vulnerability?
The severity of this vulnerability is medium with a CVSS score of 5.8.
What software is affected by this vulnerability?
The Cisco Firepower Threat Defense (FTD) Software is affected by this vulnerability.
How can an attacker exploit this vulnerability?
An attacker can exploit this vulnerability by sending specially crafted input to the ssl_inspection component.
- agent/references
- agent/title
- agent/severity
- agent/author
- agent/weakness
- agent/tags
- agent/event
- agent/type
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/cisco-advisory
- source/Cisco
- agent/software-canonical-lookup
- vendor/cisco
- canonical/cisco ftd software
- version/cisco ftd software/6.4.0