#VU88981 Infinite loop in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2024-20353
Published: April 24, 2024 / Updated: April 25, 2024
Vulnerability identifier: #VU88981
Vulnerability risk: High
CVSSv4.0: 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/E:A/U:Amber
CVE-ID: CVE-2024-20353
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when parsing HTTP headers. A remote attacker can send specially crafted HTTP request to the appliance and perform a denial of service (DoS) attack.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.