CVE-2021-34753 — Cisco Firepower Threat Defense Ethernet Industrial Protocol Policy Bypass Vulnerabilities

Description (CNA)

A vulnerability in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic. This vulnerability is due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit this vulnerability by sending a crafted ENIP packet to the targeted interface. A successful exploit could allow the attacker to bypass configured access control and intrusion policies that should trigger and drop for the ENIP packet.

Affected (CNA)

Vendor / product	Versions
Cisco / Cisco Firepower Threat Defense Software	affected N/A

CWE

CWE-284

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-enip-bypass-eFsxd8KP

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.