CVE-2021-1224

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.

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-tfo-bypass-MmzZrtes	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
https://www.debian.org/security/2023/dsa-5354

Configuration 1

cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.15:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.16:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.17:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.18:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:3.0.1:*:*:*:*:*:*:* cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*

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Published : 2021-01-13 10:15

Updated : 2023-02-19 04:15

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NVD link : CVE-2021-1224

Mitre link : CVE-2021-1224

Cisco

Firepower Threat Defense

NVD-CWE-Other