A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435.
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firepower_threat_defense | Cisco | 6.1.0.5 (including) | 6.1.0.5 (including) |
| Firepower_threat_defense | Cisco | 6.2.0.2 (including) | 6.2.0.2 (including) |
| Firepower_threat_defense | Cisco | 6.2.1 (including) | 6.2.1 (including) |
| Firepower_threat_defense | Cisco | 6.2.2 (including) | 6.2.2 (including) |