CVE-2024-20353: Cisco ASA and FTD Denial of Service Vulnerability
CVE-2024-20353 · Severity: critical · CVSS 8.6 · Exploited in the wild · Published 2024-04-24
A vulnerability in the management and VPN web servers of Cisco ASA and FTD software allows an unauthenticated remote attacker to cause a denial of service (DoS) by triggering an unexpected device reload. The issue stems from an infinite loop caused by incomplete error checking when parsing crafted HTTP headers.
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2024-20353 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2024-20353?
Check whether you run Cisco Adaptive Security Appliance (ASA) or Cisco Firepower Threat Defense (FTD). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.