Vulnerabilities > CVE-2021-40118 - Out-of-bounds Write vulnerability in Cisco products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

cisco

CWE-787

NVD

Published: 2021-10-27

Updated: 2023-11-07

Summary

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Vulnerable Configurations

Part	Description	Count
Application	Cisco Cisco Firepower Threat Defense 7.0.0 Cisco Firepower Threat Defense 7.0.0.1 Cisco Firepower Threat Defense 6.7.0 Cisco Firepower Threat Defense 6.7.0.1 Cisco Firepower Threat Defense 6.7.0.2 Cisco Firepower Threat Defense 6.7.0.3 Cisco Firepower Threat Defense 6.5.0 Cisco Firepower Threat Defense 6.5.0.1 Cisco Firepower Threat Defense 6.5.0.2 Cisco Firepower Threat Defense 6.5.0.3 Cisco Firepower Threat Defense 6.5.0.4 Cisco Firepower Threat Defense 6.5.0.5 Cisco Firepower Threat Defense 6.6.0 Cisco Firepower Threat Defense 6.6.0.1 Cisco Firepower Threat Defense 6.6.1 Cisco Firepower Threat Defense 6.6.3 Cisco Firepower Threat Defense 6.6.4 Cisco Firepower Threat Defense - Cisco Firepower Threat Defense 5.3.0 Cisco Firepower Threat Defense 5.4.0 Cisco Firepower Threat Defense 6.0 Cisco Firepower Threat Defense 6.0.0 Cisco Firepower Threat Defense 6.0.0.1 Cisco Firepower Threat Defense 6.0.1 Cisco Firepower Threat Defense 6.0.1.1 Cisco Firepower Threat Defense 6.0.1.2 Cisco Firepower Threat Defense 6.0.1.3 Cisco Firepower Threat Defense 6.0.1.4 Cisco Firepower Threat Defense 6.1.0 Cisco Firepower Threat Defense 6.1.0.1 Cisco Firepower Threat Defense 6.1.0.2 Cisco Firepower Threat Defense 6.1.0.3 Cisco Firepower Threat Defense 6.1.0.4 Cisco Firepower Threat Defense 6.1.0.5 Cisco Firepower Threat Defense 6.1.0.6 Cisco Firepower Threat Defense 6.1.0.7 Cisco Firepower Threat Defense 6.2.0 Cisco Firepower Threat Defense 6.2.0.1 Cisco Firepower Threat Defense 6.2.0.2 Cisco Firepower Threat Defense 6.2.0.3 Cisco Firepower Threat Defense 6.2.0.4 Cisco Firepower Threat Defense 6.2.0.5 Cisco Firepower Threat Defense 6.2.0.6 Cisco Firepower Threat Defense 6.2.1 Cisco Firepower Threat Defense 6.2.2 Cisco Firepower Threat Defense 6.2.2.1 Cisco Firepower Threat Defense 6.2.2.2 Cisco Firepower Threat Defense 6.2.2.3 Cisco Firepower Threat Defense 6.2.2.4 Cisco Firepower Threat Defense 6.2.2.5 Cisco Firepower Threat Defense 6.2.3 Cisco Firepower Threat Defense 6.2.3.0 Cisco Firepower Threat Defense 6.2.3.1 Cisco Firepower Threat Defense 6.2.3.2 Cisco Firepower Threat Defense 6.2.3.3 Cisco Firepower Threat Defense 6.2.3.4 Cisco Firepower Threat Defense 6.2.3.5 Cisco Firepower Threat Defense 6.2.3.6 Cisco Firepower Threat Defense 6.2.3.7 Cisco Firepower Threat Defense 6.2.3.8 Cisco Firepower Threat Defense 6.2.3.9 Cisco Firepower Threat Defense 6.2.3.10 Cisco Firepower Threat Defense 6.2.3.11 Cisco Firepower Threat Defense 6.2.3.12 Cisco Firepower Threat Defense 6.2.3.13 Cisco Firepower Threat Defense 6.2.3.14 Cisco Firepower Threat Defense 6.2.3.15 Cisco Firepower Threat Defense 6.2.3.16 Cisco Firepower Threat Defense 6.2.3.17 Cisco Firepower Threat Defense 6.2.3.18 Cisco Firepower Threat Defense 6.3.0 Cisco Firepower Threat Defense 6.3.0.1 Cisco Firepower Threat Defense 6.3.0.2 Cisco Firepower Threat Defense 6.3.0.3 Cisco Firepower Threat Defense 6.3.0.4 Cisco Firepower Threat Defense 6.3.0.5 Cisco Firepower Threat Defense 6.3.0.6 Cisco Firepower Threat Defense 6.4.0 Cisco Firepower Threat Defense 6.4.0.1 Cisco Firepower Threat Defense 6.4.0.2 Cisco Firepower Threat Defense 6.4.0.3 Cisco Firepower Threat Defense 6.4.0.4 Cisco Firepower Threat Defense 6.4.0.5 Cisco Firepower Threat Defense 6.4.0.6 Cisco Firepower Threat Defense 6.4.0.7 Cisco Firepower Threat Defense 6.4.0.8 Cisco Firepower Threat Defense 6.4.0.9 Cisco Firepower Threat Defense 6.4.0.10 Cisco Firepower Threat Defense 6.4.0.11 Cisco Firepower Threat Defense 6.4.0.12 Cisco Adaptive Security Appliance 9.1.7.4 Cisco Adaptive Security Appliance 9.2 Cisco Adaptive Security Appliance 9.2.4.8 Cisco Adaptive Security Appliance 9.3 Cisco Adaptive Security Appliance 9.3.3.9 Cisco Adaptive Security Appliance 9.4 Cisco Adaptive Security Appliance 9.4.2.11 Cisco Adaptive Security Appliance 9.4.4.37 Cisco Adaptive Security Appliance 9.5 Cisco Adaptive Security Appliance 9.5.2.5 Cisco Adaptive Security Appliance 9.6 Cisco Adaptive Security Appliance 9.6.0 Cisco Adaptive Security Appliance 9.6.1 Cisco Adaptive Security Appliance 9.6.1.3 Cisco Adaptive Security Appliance 9.6.1.5 Cisco Adaptive Security Appliance 9.6.1.10 Cisco Adaptive Security Appliance 9.6.2 Cisco Adaptive Security Appliance 9.6.2.1 Cisco Adaptive Security Appliance 9.6.2.2 Cisco Adaptive Security Appliance 9.6.2.3 Cisco Adaptive Security Appliance 9.6.2.7 Cisco Adaptive Security Appliance 9.6.2.11 Cisco Adaptive Security Appliance 9.6.2.13 Cisco Adaptive Security Appliance 9.6.2.22 Cisco Adaptive Security Appliance 9.6.2.23 Cisco Adaptive Security Appliance 9.6.3 Cisco Adaptive Security Appliance 9.6.3.1 Cisco Adaptive Security Appliance 9.6.3.3 Cisco Adaptive Security Appliance 9.6.3.8 Cisco Adaptive Security Appliance 9.6.3.9 Cisco Adaptive Security Appliance 9.6.3.11 Cisco Adaptive Security Appliance 9.6.3.12 Cisco Adaptive Security Appliance 9.6.3.14 Cisco Adaptive Security Appliance 9.6.3.17 Cisco Adaptive Security Appliance 9.6.3.20 Cisco Adaptive Security Appliance 9.6.4 Cisco Adaptive Security Appliance 9.6.4.3 Cisco Adaptive Security Appliance 9.6.4.5 Cisco Adaptive Security Appliance 9.6.4.6 Cisco Adaptive Security Appliance 9.6.4.8 Cisco Adaptive Security Appliance 9.6.4.10 Cisco Adaptive Security Appliance 9.6.4.12 Cisco Adaptive Security Appliance 9.6.4.14 Cisco Adaptive Security Appliance 9.6.4.17 Cisco Adaptive Security Appliance 9.6.4.18 Cisco Adaptive Security Appliance 9.6.4.20 Cisco Adaptive Security Appliance 9.6.4.22 Cisco Adaptive Security Appliance 9.6.4.23 Cisco Adaptive Security Appliance 9.6.4.24 Cisco Adaptive Security Appliance 9.6.4.25 Cisco Adaptive Security Appliance 9.6.4.29 Cisco Adaptive Security Appliance 9.6.4.30 Cisco Adaptive Security Appliance 9.6.4.31 Cisco Adaptive Security Appliance 9.6.4.34 Cisco Adaptive Security Appliance 9.6.4.35 Cisco Adaptive Security Appliance 9.6.4.36 Cisco Adaptive Security Appliance 9.6.4.40 Cisco Adaptive Security Appliance 9.6.4.41 Cisco Adaptive Security Appliance 9.6.4.42 Cisco Adaptive Security Appliance 9.6.4.43 Cisco Adaptive Security Appliance 9.6.4.45 Cisco Adaptive Security Appliance 9.7 Cisco Adaptive Security Appliance 9.7.1 Cisco Adaptive Security Appliance 9.7.1.2 Cisco Adaptive Security Appliance 9.7.1.4 Cisco Adaptive Security Appliance 9.7.1.8 Cisco Adaptive Security Appliance 9.7.1.15 Cisco Adaptive Security Appliance 9.7.1.16 Cisco Adaptive Security Appliance 9.7.1.21 Cisco Adaptive Security Appliance 9.7.1.24 Cisco Adaptive Security Appliance 9.8 Cisco Adaptive Security Appliance 9.8.0 Cisco Adaptive Security Appliance 9.8.1 Cisco Adaptive Security Appliance 9.8.1.5 Cisco Adaptive Security Appliance 9.8.1.7 Cisco Adaptive Security Appliance 9.8.2 Cisco Adaptive Security Appliance 9.8.2.8 Cisco Adaptive Security Appliance 9.8.2.14 Cisco Adaptive Security Appliance 9.8.2.15 Cisco Adaptive Security Appliance 9.8.2.17 Cisco Adaptive Security Appliance 9.8.2.20 Cisco Adaptive Security Appliance 9.8.2.24 Cisco Adaptive Security Appliance 9.8.2.26 Cisco Adaptive Security Appliance 9.8.2.28 Cisco Adaptive Security Appliance 9.8.2.33 Cisco Adaptive Security Appliance 9.8.2.35 Cisco Adaptive Security Appliance 9.8.2.38 Cisco Adaptive Security Appliance 9.8.2.45 Cisco Adaptive Security Appliance 9.8.3 Cisco Adaptive Security Appliance 9.8.3.8 Cisco Adaptive Security Appliance 9.8.3.11 Cisco Adaptive Security Appliance 9.8.3.14 Cisco Adaptive Security Appliance 9.8.3.16 Cisco Adaptive Security Appliance 9.8.3.18 Cisco Adaptive Security Appliance 9.8.3.21 Cisco Adaptive Security Appliance 9.8.3.26 Cisco Adaptive Security Appliance 9.8.3.29 Cisco Adaptive Security Appliance 9.8.4 Cisco Adaptive Security Appliance 9.8.4.3 Cisco Adaptive Security Appliance 9.8.4.7 Cisco Adaptive Security Appliance 9.8.4.8 Cisco Adaptive Security Appliance 9.8.4.9 Cisco Adaptive Security Appliance 9.8.4.10 Cisco Adaptive Security Appliance 9.8.4.12 Cisco Adaptive Security Appliance 9.8.4.15 Cisco Adaptive Security Appliance 9.8.4.17 Cisco Adaptive Security Appliance 9.8.4.20 Cisco Adaptive Security Appliance 9.8.4.22 Cisco Adaptive Security Appliance 9.8.4.24 Cisco Adaptive Security Appliance 9.8.4.25 Cisco Adaptive Security Appliance 9.8.4.26 Cisco Adaptive Security Appliance 9.8.4.29 Cisco Adaptive Security Appliance 9.8.4.32 Cisco Adaptive Security Appliance 9.8.4.33 Cisco Adaptive Security Appliance 9.8.4.34 Cisco Adaptive Security Appliance 9.8.4.35 Cisco Adaptive Security Appliance 9.8.4.39	207
OS	Cisco Cisco Adaptive Security Appliance Software 9.9.0 Cisco Adaptive Security Appliance Software 9.9.0.0 Cisco Adaptive Security Appliance Software 9.9.1 Cisco Adaptive Security Appliance Software 9.9.1\(1\) Cisco Adaptive Security Appliance Software 9.9.1.2 Cisco Adaptive Security Appliance Software 9.9.1.3 Cisco Adaptive Security Appliance Software 9.9.1.4 Cisco Adaptive Security Appliance Software 9.9.1.5 Cisco Adaptive Security Appliance Software 9.9.2 Cisco Adaptive Security Appliance Software 9.9.2.1 Cisco Adaptive Security Appliance Software 9.9.2.9 Cisco Adaptive Security Appliance Software 9.9.2.14 Cisco Adaptive Security Appliance Software 9.9.2.18 Cisco Adaptive Security Appliance Software 9.9.2.25 Cisco Adaptive Security Appliance Software 9.9.2.27 Cisco Adaptive Security Appliance Software 9.9.2.32 Cisco Adaptive Security Appliance Software 9.9.2.36 Cisco Adaptive Security Appliance Software 9.9.2.40 Cisco Adaptive Security Appliance Software 9.9.2.47 Cisco Adaptive Security Appliance Software 9.9.2.50 Cisco Adaptive Security Appliance Software 9.9.2.52 Cisco Adaptive Security Appliance Software 9.9.2.56 Cisco Adaptive Security Appliance Software 9.9.2.59 Cisco Adaptive Security Appliance Software 9.9.2.61 Cisco Adaptive Security Appliance Software 9.9.2.66 Cisco Adaptive Security Appliance Software 9.9.2.67 Cisco Adaptive Security Appliance Software 9.9.2.74 Cisco Adaptive Security Appliance Software 9.9.2.80 Cisco Adaptive Security Appliance Software 9.9.2.83 Cisco Adaptive Security Appliance Software 9.9.2.85 Cisco Adaptive Security Appliance Software 9.9.2.235 Cisco Adaptive Security Appliance Software 9.10 Cisco Adaptive Security Appliance Software 9.10.0 Cisco Adaptive Security Appliance Software 9.10.1 Cisco Adaptive Security Appliance Software 9.10.1.2 Cisco Adaptive Security Appliance Software 9.10.1.7 Cisco Adaptive Security Appliance Software 9.10.1.10 Cisco Adaptive Security Appliance Software 9.10.1.11 Cisco Adaptive Security Appliance Software 9.10.1.17 Cisco Adaptive Security Appliance Software 9.10.1.22 Cisco Adaptive Security Appliance Software 9.10.1.27 Cisco Adaptive Security Appliance Software 9.10.1.30 Cisco Adaptive Security Appliance Software 9.10.1.32 Cisco Adaptive Security Appliance Software 9.10.1.37 Cisco Adaptive Security Appliance Software 9.10.1.40 Cisco Adaptive Security Appliance Software 9.10.1.42 Cisco Adaptive Security Appliance Software 9.10.1.43 Cisco Adaptive Security Appliance Software 9.10.1.44 Cisco Adaptive Security Appliance Software 9.11 Cisco Adaptive Security Appliance Software 9.12 Cisco Adaptive Security Appliance Software 9.12.0 Cisco Adaptive Security Appliance Software 9.12.1 Cisco Adaptive Security Appliance Software 9.12.1.2 Cisco Adaptive Security Appliance Software 9.12.1.3 Cisco Adaptive Security Appliance Software 9.12.2 Cisco Adaptive Security Appliance Software 9.12.2.1 Cisco Adaptive Security Appliance Software 9.12.2.4 Cisco Adaptive Security Appliance Software 9.12.2.5 Cisco Adaptive Security Appliance Software 9.12.2.9 Cisco Adaptive Security Appliance Software 9.12.3 Cisco Adaptive Security Appliance Software 9.12.3.2 Cisco Adaptive Security Appliance Software 9.12.3.6 Cisco Adaptive Security Appliance Software 9.12.3.7 Cisco Adaptive Security Appliance Software 9.12.3.9 Cisco Adaptive Security Appliance Software 9.12.3.12 Cisco Adaptive Security Appliance Software 9.12.4 Cisco Adaptive Security Appliance Software 9.12.4.2 Cisco Adaptive Security Appliance Software 9.12.4.3 Cisco Adaptive Security Appliance Software 9.12.4.4 Cisco Adaptive Security Appliance Software 9.12.4.7 Cisco Adaptive Security Appliance Software 9.12.4.8 Cisco Adaptive Security Appliance Software 9.12.4.10 Cisco Adaptive Security Appliance Software 9.12.4.13 Cisco Adaptive Security Appliance Software 9.12.4.18 Cisco Adaptive Security Appliance Software 9.12.4.24 Cisco Adaptive Security Appliance Software 9.12.4.25 Cisco Adaptive Security Appliance Software 9.12.4.26 Cisco Adaptive Security Appliance Software 9.15.1 Cisco Adaptive Security Appliance Software 9.15.1.1 Cisco Adaptive Security Appliance Software 9.15.1.4 Cisco Adaptive Security Appliance Software 9.15.1.7 Cisco Adaptive Security Appliance Software 9.15.1.10 Cisco Adaptive Security Appliance Software 9.15.1.15 Cisco Adaptive Security Appliance Software 9.15.1.16 Cisco Adaptive Security Appliance Software 9.16.1 Cisco Adaptive Security Appliance Software 9.16.1.28 Cisco Adaptive Security Appliance Software 9.16.2 Cisco Adaptive Security Appliance Software 9.13.1 Cisco Adaptive Security Appliance Software 9.13.1.2 Cisco Adaptive Security Appliance Software 9.13.1.4 Cisco Adaptive Security Appliance Software 9.13.1.5 Cisco Adaptive Security Appliance Software 9.13.1.7 Cisco Adaptive Security Appliance Software 9.13.1.10 Cisco Adaptive Security Appliance Software 9.13.1.12 Cisco Adaptive Security Appliance Software 9.13.1.13 Cisco Adaptive Security Appliance Software 9.13.1.16 Cisco Adaptive Security Appliance Software 9.13.1.19 Cisco Adaptive Security Appliance Software 9.13.1.21 Cisco Adaptive Security Appliance Software 9.14 Cisco Adaptive Security Appliance Software 9.14.1 Cisco Adaptive Security Appliance Software 9.14.1.6 Cisco Adaptive Security Appliance Software 9.14.1.10 Cisco Adaptive Security Appliance Software 9.14.1.15 Cisco Adaptive Security Appliance Software 9.14.1.19 Cisco Adaptive Security Appliance Software 9.14.1.29 Cisco Adaptive Security Appliance Software 9.14.1.30 Cisco Adaptive Security Appliance Software 9.14.2 Cisco Adaptive Security Appliance Software 9.14.2.4 Cisco Adaptive Security Appliance Software 9.14.2.7 Cisco Adaptive Security Appliance Software 9.14.2.8 Cisco Adaptive Security Appliance Software 9.14.2.13 Cisco Adaptive Security Appliance Software 9.14.2.15 Cisco Adaptive Security Appliance Software 9.14.3 Cisco Adaptive Security Appliance Software 9.14.3.1 Cisco ASA 5512 X Firmware 009.012\(004.024\) Cisco ASA 5512 X Firmware 009.015\(001\) Cisco ASA 5512 X Firmware 009.015\(001.015\) Cisco ASA 5512 X Firmware 009.015\(001.016\) Cisco ASA 5512 X Firmware 009.016\(001\) Cisco ASA 5505 Firmware 009.012\(004.024\) Cisco ASA 5505 Firmware 009.015\(001\) Cisco ASA 5505 Firmware 009.015\(001.015\) Cisco ASA 5505 Firmware 009.015\(001.016\) Cisco ASA 5505 Firmware 009.016\(001\) Cisco ASA 5515 X Firmware 009.012\(004.024\) Cisco ASA 5515 X Firmware 009.015\(001\) Cisco ASA 5515 X Firmware 009.015\(001.015\) Cisco ASA 5515 X Firmware 009.015\(001.016\) Cisco ASA 5515 X Firmware 009.016\(001\) Cisco ASA 5525 X Firmware 009.012\(004.024\) Cisco ASA 5525 X Firmware 009.015\(001\) Cisco ASA 5525 X Firmware 009.015\(001.015\) Cisco ASA 5525 X Firmware 009.015\(001.016\) Cisco ASA 5525 X Firmware 009.016\(001\) Cisco ASA 5545 X Firmware 009.012\(004.024\) Cisco ASA 5545 X Firmware 009.015\(001\) Cisco ASA 5545 X Firmware 009.015\(001.015\) Cisco ASA 5545 X Firmware 009.015\(001.016\) Cisco ASA 5545 X Firmware 009.016\(001\) Cisco ASA 5555 X Firmware 009.012\(004.024\) Cisco ASA 5555 X Firmware 009.015\(001\) Cisco ASA 5555 X Firmware 009.015\(001.015\) Cisco ASA 5555 X Firmware 009.015\(001.016\) Cisco ASA 5555 X Firmware 009.016\(001\) Cisco ASA 5580 Firmware 009.012\(004.024\) Cisco ASA 5580 Firmware 009.015\(001\) Cisco ASA 5580 Firmware 009.015\(001.015\) Cisco ASA 5580 Firmware 009.015\(001.016\) Cisco ASA 5580 Firmware 009.016\(001\) Cisco ASA 5585 X Firmware 009.012\(004.024\) Cisco ASA 5585 X Firmware 009.015\(001\) Cisco ASA 5585 X Firmware 009.015\(001.015\) Cisco ASA 5585 X Firmware 009.015\(001.016\) Cisco ASA 5585 X Firmware 009.016\(001\)	154
Hardware	Cisco Cisco ASA 5512 X - Cisco ASA 5505 - Cisco ASA 5515 X - Cisco ASA 5525 X - Cisco ASA 5545 X - Cisco ASA 5555 X - Cisco ASA 5580 - Cisco ASA 5585 X -	8

Common Weakness Enumeration (CWE)

CWE-787 - Out-of-bounds Write

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asafdt-webvpn-dos-KSqJAKPA