Input validation error in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2024-20494
Published: October 24, 2024
Vulnerability identifier: #VU99327
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-20494
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper data validation during the TLS 1.3 handshake. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2024-20494
Install update from vendor's website.
Cisco Adaptive Security Appliance (ASA) - addressed in versions 7.4.2, 7.4.2.1, 7.6.0, 9.19.1.37, 9.20.2.22, 9.20.3, 9.20.3.4, 9.20.3.7, 9.22.1.1
Cisco Firewall Threat Defense (FTD) - addressed in versions 7.4.2, 7.4.2.1, 7.6.0, 9.19.1.37, 9.20.2.22, 9.20.3, 9.20.3.4, 9.20.3.7, 9.22.1.1
Cisco Firewall Threat Defense (FTD) - addressed in versions 7.4.2, 7.4.2.1, 7.6.0, 9.19.1.37, 9.20.2.22, 9.20.3, 9.20.3.4, 9.20.3.7, 9.22.1.1