CVE ID:	CVE-2021-1224
Description:	Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-1224 Cisco Security Advisory: 20210113 Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-tfo-bypass-MmzZrtes Debian Security Information: DSA-5354 (Google Search) https://www.debian.org/security/2023/dsa-5354 https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html