CVE-2019-12649 MEDIUM

CVE-2019-12649: Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability

Vendor Cisco
Product Cisco IOS XE Software 3.2.11aSG
Weakness CWE-347
Published September 25, 2019
Last update November 20, 2024

CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability exists because, under certain circumstances, an affected device can be configured to not verify the digital signatures of system image files during the boot process. An attacker could exploit this vulnerability by abusing a specific feature that is part of the device boot process. A successful exploit could allow the attacker to install and boot a malicious software image or execute unsigned binaries on the targeted device.

Key dates

02Disclosure timeline

September 25, 2019 CVE published
November 20, 2024 Record updated