5.8
CVSSv3

CVE-2020-3285

Published: 06/05/2020 Updated: 12/10/2021
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 5.8 | Impact Score: 1.4 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Summary

A vulnerability in the Transport Layer Security version 1.3 (TLS 1.3) policy with URL category functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote malicious user to bypass a configured TLS 1.3 policy to block traffic for a specific URL. The vulnerability is due to a logic error with Snort handling of the connection with the TLS 1.3 policy and URL category configuration. An attacker could exploit this vulnerability by sending crafted TLS 1.3 connections to an affected device. A successful exploit could allow the malicious user to bypass the TLS 1.3 policy and access URLs that are outside the affected device and normally would be dropped.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

cisco firepower threat defense

Vendor Advisories

A vulnerability in the Transport Layer Security version 13 (TLS 13) policy with URL category functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured TLS 13 policy to block traffic for a specific URL The vulnerability is due to a logic error with Snort handling of the ...

Recent Articles

Bored at home? Cisco has just the thing: A shed-load of security fixes to install, from a Kerberos bypass to crashes
The Register • Shaun Nichols in San Francisco • 07 May 2020

Switchzilla issues a whopping 30+ patches in time for the long UK weekend

Cisco has emitted a fresh round of software updates to address nearly three dozen security holes in its products. The patches, released over May 6 and 7, include 12 issues considered high-severity bugs, and another 22 classified as moderate severity. One of the holes has two CVE numbers assigned to it, so that's a total of 35 CVE-listed security vulnerabilities. Despite the absence of a critical remote code or command execution bug, the patches include a number of serious programming blunders, p...