CVE-2021-1236

Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network.

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-app-bypass-cSBYCATq	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_management_center:2.9.17:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.14.14:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 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-2021-1236

Mitre link : CVE-2021-1236

Cisco

Firepower Threat Defense

CWE-670