CVE-2021-1224Medium· 5.8▾ SunlitMultiple 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. T…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 31.9 · likelihood 0.4 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
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
2.0%
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.
secure_firewall_management_center = 2.9.14.0secure_firewall_management_center = 2.9.15secure_firewall_management_center = 2.9.16secure_firewall_management_center = 2.9.17secure_firewall_management_center = 2.9.18secure_firewall_management_center = 3.0.1secure_firewall_threat_defense < 6.7.0ios_xe < 17.4.1snort < 2.9.17meraki_mx64_firmwaremeraki_mx64w_firmwaremeraki_mx67_firmwaremeraki_mx67c_firmwaremeraki_mx67w_firmwaremeraki_mx68_firmwaremeraki_mx68cw_firmwaremeraki_mx68w_firmwaremeraki_mx100_firmwaremeraki_mx84_firmwaremeraki_mx250_firmwaremeraki_mx450_firmwareUpgrade past the affected range:
secure_firewall_threat_defense 6.7.0ios_xe 17.4.1snort 2.9.17Connected by shared product, vendor, weakness, or advisory.
CVE-2021-1223High· 7.5Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP
CVE-2020-3315Medium· 5.3Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system
CVE-2021-1236Medium· 5.3Multiple 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
CVE-2020-3299Medium· 5.8Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured File Policy for HTTP
CVE-2019-1970Medium· 5.8A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol inspection engine of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured file po…
CVE-2019-1669High· 8.6A vulnerability in the data acquisition (DAQ) component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access control policies or cause a denial of service (DoS) cond…