cisco-sa-asa-ftd-vpn-dos-fpBcpEcD: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services VPN Denial of Service Vulnerabilities
First published: Wed Apr 28 2021(Updated: )
Multiple vulnerabilities in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to lack of proper input validation of the HTTPS request. An attacker could exploit these vulnerabilities by sending a crafted HTTPS request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: This vulnerability affects only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-vpn-dos-fpBcpEcD This advisory is part of the April 2021 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: April 2021 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.
Credit: Nikita Abramov PT Security for reporting these vulnerabilities
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco ASA Software | =9.15<9.15.1.7=9.14<9.14.2.8=9.13<9.13.1.21>=9.10<=9.12<9.12.4.13=9.9<9.9.2.85>=9.7<=9.8<9.8.4.34 | 9.15.1.7 9.14.2.8 9.13.1.21 9.12.4.13 9.9.2.85 9.8.4.34 |
| Cisco FTD Software | >=Earlier than 6.2.2=6.2.2=6.2.3=6.3.0<=6.4.0<6.4.0.12 (May 2021) | 6.4.0.12 (May 2021) |
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 the vulnerability ID?
The vulnerability ID is cisco-sa-asa-ftd-vpn-dos-fpBcpEcD.
What is the title of the vulnerability?
The title of the vulnerability is 'Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services VPN Denial of Service Vulnerabilities'.
What is the severity of the vulnerability?
The severity of the vulnerability is high with a CVSS score of 8.6.
What is affected by this vulnerability?
Cisco Adaptive Security Appliance (ASA) Software versions 9.15 up to and including 9.15.1.7, 9.14 up to and including 9.14.2.8, 9.13 up to and including 9.13.1.21, 9.10 up to and including 9.12.4.13, 9.9 up to and including 9.9.2.85, 9.7 up to and including 9.8.4.34, and Cisco Firepower Threat Defense (FTD) Software versions earlier than 6.2.2 up to and including 6.4.0.12 (May 2021) are affected by this vulnerability.
What is the remediation for this vulnerability?
Update to Cisco ASA Software versions 9.15.1.7, 9.14.2.8, 9.13.1.21, 9.12.4.13, 9.9.2.85, 9.8.4.34, or later, and Cisco FTD Software version 6.4.0.12 (May 2021) or later, to mitigate this vulnerability.
- agent/severity
- agent/title
- agent/references
- agent/author
- agent/weakness
- agent/description
- agent/type
- agent/event
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/cisco-advisory
- source/Cisco
- agent/software-canonical-lookup
- vendor/cisco
- canonical/cisco asa software
- version/cisco asa software/9.15
- version/cisco asa software/9.14
- version/cisco asa software/9.13
- version/cisco asa software/9.10
- version/cisco asa software/9.12
- version/cisco asa software/9.9
- version/cisco asa software/9.7
- version/cisco asa software/9.8
- canonical/cisco ftd software
- version/cisco ftd software/earlier than 6.2.2
- version/cisco ftd software/6.2.2
- version/cisco ftd software/6.2.3
- version/cisco ftd software/6.3.0
- version/cisco ftd software/6.4.0