CVE-2024-20353
Description
A vulnerability in the management and VPN web servers for 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.
This vulnerability is due to incomplete error checking when parsing an HTTP header. An attacker could exploit this vulnerability by sending a crafted HTTP request to a targeted web server on a device. A successful exploit could allow the attacker to cause a DoS condition when the device reloads.
Summary dbcve.org
A vulnerability in the management and VPN web servers of Cisco ASA and FTD software exists due to incomplete error checking during HTTP header parsing. An unauthenticated remote attacker can send a crafted HTTP request to the targeted web server, triggering the device to unexpectedly reload and cause a denial of service condition.
Mitigation
Apply the relevant Cisco software update/patch for ASA or FTD software when released. Consider restricting access to management and VPN web interfaces to trusted networks until the patch can be applied.