CVE-2024-20407
A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker t
Description
A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies on an affected system. Devices that are configured with Snort 2 are not affected by this vulnerability. This vulnerability is due to a logic error when handling embryonic (half-open) TCP connections. An attacker could exploit this vulnerability by sending a crafted traffic pattern through an affected device. A successful exploit could allow unintended traffic to enter the network protected by the affected device.
Weakness: CWE-399
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense (FTD) Check your version | Firewall / NGFW | cna-assigner |
Vendor-reported products (2)
- Cisco · Cisco Firepower Threat Defense Software
- cisco · firepower_threat_defense_software
Vendor advisory
cisco-sa-snort-bypass-PTry37fX
Cisco Firepower Threat Defense Software TCP Snort 3 Detection Engine Bypass Vulnerability
Cisco’s rating: Medium (advisory CVSS 5.8) · Published Oct 23, 2024
Bug ID: CSCwi42291
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from