CVE Vulnerabilities

CVE-2018-0384

Protection Mechanism Failure

Published: Jul 16, 2018 | Modified: Oct 09, 2019
CVSS 3.x
5.8
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in the detection engine of Cisco FireSIGHT System Software could allow an unauthenticated, remote attacker to bypass a URL-based access control policy that is configured to block traffic for an affected system. The vulnerability exists because the affected software incorrectly handles TCP packets that are received out of order when a TCP SYN retransmission is issued. An attacker could exploit this vulnerability by sending a maliciously crafted connection through an affected device. A successful exploit could allow the attacker to bypass a URL-based access control policy that is configured to block traffic for the affected system. Cisco Bug IDs: CSCvh84511.

Weakness

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Affected Software

Name Vendor Start Version End Version
Firepower_management_center Cisco 6.0.0 6.0.0
Firepower_management_center Cisco 6.2.1 6.2.1
Firepower_management_center Cisco 6.1.0 6.1.0
Firepower_management_center Cisco 6.2.0 6.2.0
Firepower_management_center Cisco 6.2.2 6.2.2

References