CVE-2026-20007— Cisco Secure Firewall Threat Defense 访问控制错误漏洞

Cisco Secure Firewall Threat Defense Software Snort Deep Inspection Bypass Vulnerability

A vulnerability in the Snort 2 and Snort 3 deep packet inspection of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured Snort rules and allow traffic onto the network that should have been dropped. This vulnerability is due to a logic error in the integration of the Snort Engine rules with Cisco Secure FTD Software that could allow different Snort rules to be hit when deep inspection of the packet is performed for the inner and outer connections. An attacker could exploit this vulnerability by sending crafted traffic to a targeted device that would hit configured Snort rules. A successful exploit could allow the attacker to send traffic to a network where it should have been denied.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

访问控制不恰当

Cisco Secure Firewall Threat Defense 访问控制错误漏洞

Cisco Secure Firewall Threat Defense是美国思科（Cisco）公司的一个集成式防火墙平台。 Cisco Secure Firewall Threat Defense存在访问控制错误漏洞，该漏洞源于Snort引擎规则集成的逻辑错误，可能导致未经身份验证的远程攻击者绕过配置的Snort规则。

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