high
8.6
CWE
400 20
Advisory Published

cisco-sa-asaftd-webdos-fBzM5Ynw: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Denial of Service Vulnerability

First published: Wed Oct 21 2020(Updated: )

Update from October 22nd, 2020: Cisco has become aware of a new Cisco Adaptive Security Appliance vulnerability that could affect the fixed releases recommended for code trains 9.13 and 9.14 in the Fixed Software section of this advisory. See the Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability for additional information. A vulnerability in the web interface of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. An exploit could allow the attacker to cause a DoS condition. Note: This vulnerability applies to IP Version 4 (IPv4) and IP Version 6 (IPv6) HTTP traffic. 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-asaftd-webdos-fBzM5Ynw This advisory is part of the October 2020 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication, which includes 17 Cisco Security Advisories that describe 17 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: October 2020 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.

Credit: This vulnerability was found during the resolution a Cisco TAC support case

Affected SoftwareAffected VersionHow to fix
Cisco ASA Software=9.14<9.14.1.10=9.13<9.13.1.12=9.12<9.12.3.12=9.10<9.10.1.44=9.9<9.9.2.80>=9.7<=9.8<9.8.4.22>=Earlier than 9.6<=9.6<9.6.4.45
9.14.1.10
9.13.1.12
9.12.3.12
9.10.1.44
9.9.2.80
9.8.4.22
9.6.4.45
Cisco FTD Software>=Earlier than 6.2.2=6.2.2=6.2.3=6.3.0<=6.4.0<6.4.0.10
6.4.0.10

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this Cisco ASA and FTD vulnerability?

    The vulnerability ID for this Cisco ASA and FTD vulnerability is cisco-sa-asaftd-webdos-fBzM5Ynw.

  • What is the severity of cisco-sa-asaftd-webdos-fBzM5Ynw?

    The severity of cisco-sa-asaftd-webdos-fBzM5Ynw is high with a severity value of 8.6.

  • Which versions of Cisco ASA Software are affected by cisco-sa-asaftd-webdos-fBzM5Ynw?

    Cisco ASA Software versions 9.14, 9.13, 9.12, 9.10, 9.9, 9.8, and 9.6 are affected by cisco-sa-asaftd-webdos-fBzM5Ynw.

  • Which versions of Cisco FTD Software are affected by cisco-sa-asaftd-webdos-fBzM5Ynw?

    Cisco FTD Software versions earlier than 6.2.2, 6.2.3, 6.3.0, and up to inclusive 6.4.0 are affected by cisco-sa-asaftd-webdos-fBzM5Ynw.

  • How do I fix cisco-sa-asaftd-webdos-fBzM5Ynw?

    To fix cisco-sa-asaftd-webdos-fBzM5Ynw, you should update to the fixed releases recommended by Cisco for the affected versions of ASA Software and FTD Software.

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