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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-01-13T21:16:53.450812Z

Updated: 2024-09-16T17:59:10.265Z

Reserved: 2020-11-13T00:00:00

Link: CVE-2021-1224

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-01-13T22:15:20.410

Modified: 2023-11-07T03:27:44.583

Link: CVE-2021-1224

cve-icon Redhat

No data.