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Cisco Adaptive Security Appliance and Firepower Threat Defense Software Remote Access VPN Denial of Service Vulnerability

cisco-sa-asa-vpn-cZf8gT · High · Published · Updated

A vulnerability in the Remote Access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition on an affected device. This vulnerability is due to improper validation of client key data after the TLS session is established. An attacker could exploit this vulnerability by sending a crafted key value to an affected system over the secure TLS session. A successful exploit could allow the attacker to cause the device to reload, resulting in a 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-asa-vpn-cZf8gT This advisory is part of the October 2024 release of the 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: October 2024 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2024-20495
Cisco Bug IDsCSCwk53369
CVSS ScoreBase 8.6
Base 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.12, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.15, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.17, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.25, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.20, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.22, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.26, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.29, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.32, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.33, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.34, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.35, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.8.4.39, Cisco Secure Firewall 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Software 9.16.3.3, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.3.14, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.3.15, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.3.19, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.3.23, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.9, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.14, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.19, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.27, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.38, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.39, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.16.4.42, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 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Secure Firewall Adaptive Security Appliance (ASA) Software 9.17.1.33, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.17.1.39, Cisco Secure Firewall Threat Defense (FTD) Software 6.2.3.16, Cisco Secure Firewall Threat Defense (FTD) Software 6.2.3.17, Cisco Secure Firewall Threat Defense (FTD) Software 6.2.3.18, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.0, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.1, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.3, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.4, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.5, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.5.1, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.5.2, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.7, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.7.1, Cisco Secure Firewall Threat Defense (FTD) Software 6.6.7.2, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.8, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.9, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.10, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.11, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.12, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.13, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.14, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.15, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.16, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.17, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.18, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.4, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.5, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.6.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco Firepower 2100 Series, Cisco Firepower 1000 Series, Cisco ASA 5500-X Series Firewalls, Cisco 3000 Series Industrial Security Appliances (ISA), Cisco Firepower 9000 Series, Cisco Firepower 4100 Series, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Secure Firewall 3100 Series, Cisco Secure Firewall Threat Defense Virtual

Related Products

Product CVE Evidence
Cisco Secure Firewall Threat Defense Virtual CVE-2024-20495 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2024-20495 Cisco OpenVuln
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software CVE-2024-20495 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2024-20495 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2024-20495 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2024-20495 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2024-20495 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2024-20495 Cisco OpenVuln
Cisco Adaptive Security Virtual Appliance (ASAv) CVE-2024-20495 Cisco OpenVuln
Cisco Adaptive Security Appliance (ASA) Software CVE-2024-20495 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2024-20495 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2024-20495 Cisco OpenVuln