CVE-2020-3308 MEDIUM

CVE-2020-3308: Cisco Firepower Threat Defense Software Signature Verification Bypass Vulnerability

Vendor Cisco
Product Cisco Firepower Threat Defense Software
Weakness CWE-347
Published May 6, 2020
Last update November 15, 2024

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

A vulnerability in the Image Signature Verification feature of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

Key dates

02Disclosure timeline

May 6, 2020 CVE published
November 15, 2024 Record updated