CVE-2020-3565Medium· 5.8▾ SunlitA vulnerability in the TCP Intercept functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured Access Control Policies (including Geolocation) and Service Polices …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 31.9 · likelihood 0.2 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 18.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.9%
0.9% → 0.9%
A vulnerability in the TCP Intercept functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured Access Control Policies (including Geolocation) and Service Polices on an affected system. The vulnerability exists because TCP Intercept is invoked when the embryonic connection limit is reached, which can cause the underlying detection engine to process the packet incorrectly. An attacker could exploit this vulnerability by sending a crafted stream of traffic that matches a policy on which TCP Intercept is configured. A successful exploit could allow the attacker to match on an incorrect policy, which could allow the traffic to be forwarded when it should be dropped. In addition, the traffic could incorrectly be dropped.
secure_firewall_threat_defense < 6.4.0.8secure_firewall_threat_defense >= 6.5.0, < 6.5.0.4secure_firewall_threat_defense >= 6.5.0.5, < 6.6.0Upgrade past the affected range:
secure_firewall_threat_defense 6.6.0Connected by shared product, vendor, weakness, or advisory.
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