CVE-2019-12649

Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability

Published Sep 25, 2019 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2019-4240 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Subscriptions

Cisco Catalyst 3850-12s-e Catalyst 3850-12s-s Catalyst 3850-12xs-e Catalyst 3850-12xs-s Catalyst 3850-16xs-e Catalyst 3850-16xs-s Catalyst 3850-24p-e Catalyst 3850-24p-l Catalyst 3850-24p-s Catalyst 3850-24pw-s Catalyst 3850-24s-e Catalyst 3850-24s-s Catalyst 3850-24t-e Catalyst 3850-24t-l Catalyst 3850-24t-s Catalyst 3850-24u-e Catalyst 3850-24u-l Catalyst 3850-24u-s Catalyst 3850-24xs-e Catalyst 3850-24xs-s Catalyst 3850-24xu-e Catalyst 3850-24xu-l Catalyst 3850-24xu-s Catalyst 3850-32xs-e Catalyst 3850-32xs-s Catalyst 3850-48f-e Catalyst 3850-48f-l Catalyst 3850-48f-s Catalyst 3850-48p-e Catalyst 3850-48p-l Catalyst 3850-48p-s Catalyst 3850-48pw-s Catalyst 3850-48t-e Catalyst 3850-48t-l Catalyst 3850-48t-s Catalyst 3850-48u-e Catalyst 3850-48u-l Catalyst 3850-48u-s Catalyst 3850-48xs-e Catalyst 3850-48xs-f-e Catalyst 3850-48xs-f-s Catalyst 3850-48xs-s Catalyst 9300 Catalyst 9300-24p-a Catalyst 9300-24p-e Catalyst 9300-24s-a Catalyst 9300-24s-e Catalyst 9300-24t-a Catalyst 9300-24t-e Catalyst 9300-24u-a Catalyst 9300-24u-e Catalyst 9300-24ux-a Catalyst 9300-24ux-e Catalyst 9300-48p-a Catalyst 9300-48p-e Catalyst 9300-48s-a Catalyst 9300-48s-e Catalyst 9300-48t-a Catalyst 9300-48t-e Catalyst 9300-48u-a Catalyst 9300-48u-e Catalyst 9300-48un-a Catalyst 9300-48un-e Catalyst 9300-48uxm-a Catalyst 9300-48uxm-e Catalyst 9300l Catalyst 9300l-24p-4g-a Catalyst 9300l-24p-4g-e Catalyst 9300l-24p-4x-a Catalyst 9300l-24p-4x-e Catalyst 9300l-24t-4g-a Catalyst 9300l-24t-4g-e Catalyst 9300l-24t-4x-a Catalyst 9300l-24t-4x-e Catalyst 9300l-48p-4g-a Catalyst 9300l-48p-4g-e Catalyst 9300l-48p-4x-a Catalyst 9300l-48p-4x-e Catalyst 9300l-48t-4g-a Catalyst 9300l-48t-4g-e Catalyst 9300l-48t-4x-a Catalyst 9300l-48t-4x-e Catalyst C3850-12x48u-e Catalyst C3850-12x48u-l Catalyst C3850-12x48u-s Ios Ios Xe
Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Nov 20, 2024, 5:10 PM
Reserved
Jun 4, 2019, 12:00 AM
Status
Modified
Published
Sep 25, 2019, 8:15 PM
Modified
Jun 17, 2026, 2:15 AM