CVE-2019-12649: Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
First published: Wed Sep 25 2019(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =16.8\(1\) | |
| Cisco Catalyst 3850-12s-e | ||
| Cisco Catalyst 3850-12s-s | ||
| Cisco Catalyst 3850-12xs-e | ||
| Cisco Catalyst 3850-12xs-s | ||
| Cisco Catalyst 3850-16xs-e | ||
| Cisco Catalyst 3850-16xs-s | ||
| Cisco Catalyst 3850-24p-e | ||
| Cisco Catalyst 3850-24p-l | ||
| Cisco Catalyst 3850-24p-s | ||
| Cisco Catalyst 3850-24pw-s | ||
| Cisco Catalyst 3850-24s-e | ||
| Cisco Catalyst 3850-24s-s | ||
| Cisco Catalyst 3850-24t-e | ||
| Cisco Catalyst 3850-24t-l | ||
| Cisco Catalyst 3850-24t-s | ||
| Cisco Catalyst 3850-24u-e | ||
| Cisco Catalyst 3850-24u-l | ||
| Cisco Catalyst 3850-24u-s | ||
| Cisco Catalyst 3850-24xs-e | ||
| Cisco Catalyst 3850-24xs-s | ||
| Cisco Catalyst 3850-24xu-e | ||
| Cisco Catalyst 3850-24xu-l | ||
| Cisco Catalyst 3850-24xu-s | ||
| Cisco Catalyst 3850-32xs-e | ||
| Cisco Catalyst 3850-32xs-s | ||
| Cisco Catalyst 3850-48f-e | ||
| Cisco Catalyst 3850-48f-l | ||
| Cisco Catalyst 3850-48f-s | ||
| Cisco Catalyst 3850-48p-e | ||
| Cisco Catalyst 3850-48p-l | ||
| Cisco Catalyst 3850-48p-s | ||
| Cisco Catalyst 3850-48pw-s | ||
| Cisco Catalyst 3850-48t-e | ||
| Cisco Catalyst 3850-48t-l | ||
| Cisco Catalyst 3850-48t-s | ||
| Cisco Catalyst 3850-48u-e | ||
| Cisco Catalyst 3850-48u-l | ||
| Cisco Catalyst 3850-48u-s | ||
| Cisco Catalyst 3850-48xs-e | ||
| Cisco Catalyst 3850-48xs-f-e | ||
| Cisco Catalyst 3850-48xs-f-s | ||
| Cisco Catalyst 3850-48xs-s | ||
| Cisco Catalyst 9300 | ||
| Cisco Catalyst 9300-24p-a | ||
| Cisco Catalyst 9300-24p-e | ||
| Cisco Catalyst 9300-24s-a | ||
| Cisco Catalyst 9300-24s-e | ||
| Cisco Catalyst 9300-24t-a | ||
| Cisco Catalyst 9300-24t-e | ||
| Cisco Catalyst 9300-24u-a | ||
| Cisco Catalyst 9300-24u-e | ||
| Cisco Catalyst 9300-24ux-a | ||
| Cisco Catalyst 9300-24ux-e | ||
| Cisco Catalyst 9300-48p-a | ||
| Cisco Catalyst 9300-48p-e | ||
| Cisco Catalyst 9300-48s-a | ||
| Cisco Catalyst 9300-48s-e | ||
| Cisco Catalyst 9300-48t-a | ||
| Cisco Catalyst 9300-48t-e | ||
| Cisco Catalyst 9300-48u-a | ||
| Cisco Catalyst 9300-48u-e | ||
| Cisco Catalyst 9300-48un-a | ||
| Cisco Catalyst 9300-48un-e | ||
| Cisco Catalyst 9300-48uxm-a | ||
| Cisco Catalyst 9300-48uxm-e | ||
| Cisco Catalyst 9300l | ||
| Cisco Catalyst 9300l-24p-4g-a | ||
| Cisco Catalyst 9300l-24p-4g-e | ||
| Cisco Catalyst 9300l-24p-4x-a | ||
| Cisco Catalyst 9300l-24p-4x-e | ||
| Cisco Catalyst 9300l-24t-4g-a | ||
| Cisco Catalyst 9300l-24t-4g-e | ||
| Cisco Catalyst 9300l-24t-4x-a | ||
| Cisco Catalyst 9300l-24t-4x-e | ||
| Cisco Catalyst 9300l-48p-4g-a | ||
| Cisco Catalyst 9300l-48p-4g-e | ||
| Cisco Catalyst 9300l-48p-4x-a | ||
| Cisco Catalyst 9300l-48p-4x-e | ||
| Cisco Catalyst 9300l-48t-4g-a | ||
| Cisco Catalyst 9300l-48t-4g-e | ||
| Cisco Catalyst 9300l-48t-4x-a | ||
| Cisco Catalyst 9300l-48t-4x-e | ||
| Cisco Catalyst C3850-12x48u-e | ||
| Cisco Catalyst C3850-12x48u-l | ||
| Cisco Catalyst C3850-12x48u-s | ||
| Cisco IOS | =16.9.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2019-12649 vulnerability about?
The vulnerability in the Image Verification feature of Cisco IOS XE Software allows an authenticated, local attacker to install and boot a malicious software image or execute unsigned binaries on an affected device.
How severe is CVE-2019-12649?
CVE-2019-12649 has a severity value of 6.7, categorized as high.
What software versions are affected by CVE-2019-12649?
The vulnerability affects Cisco IOS XE 16.8(1) and Cisco IOS 16.9.1.
Is any fix available for CVE-2019-12649?
Cisco has provided a fix for the vulnerability in the Image Verification feature. Update to the patched version to mitigate the risk.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/references
- agent/author
- agent/tags
- agent/event
- agent/description
- agent/first-publish-date
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/16.8\(1\)
- canonical/cisco catalyst 3850-12s-e
- canonical/cisco catalyst 3850-12s-s
- canonical/cisco catalyst 3850-12xs-e
- canonical/cisco catalyst 3850-12xs-s
- canonical/cisco catalyst 3850-16xs-e
- canonical/cisco catalyst 3850-16xs-s
- canonical/cisco catalyst 3850-24p-e
- canonical/cisco catalyst 3850-24p-l
- canonical/cisco catalyst 3850-24p-s
- canonical/cisco catalyst 3850-24pw-s
- canonical/cisco catalyst 3850-24s-e
- canonical/cisco catalyst 3850-24s-s
- canonical/cisco catalyst 3850-24t-e
- canonical/cisco catalyst 3850-24t-l
- canonical/cisco catalyst 3850-24t-s
- canonical/cisco catalyst 3850-24u-e
- canonical/cisco catalyst 3850-24u-l
- canonical/cisco catalyst 3850-24u-s
- canonical/cisco catalyst 3850-24xs-e
- canonical/cisco catalyst 3850-24xs-s
- canonical/cisco catalyst 3850-24xu-e
- canonical/cisco catalyst 3850-24xu-l
- canonical/cisco catalyst 3850-24xu-s
- canonical/cisco catalyst 3850-32xs-e
- canonical/cisco catalyst 3850-32xs-s
- canonical/cisco catalyst 3850-48f-e
- canonical/cisco catalyst 3850-48f-l
- canonical/cisco catalyst 3850-48f-s
- canonical/cisco catalyst 3850-48p-e
- canonical/cisco catalyst 3850-48p-l
- canonical/cisco catalyst 3850-48p-s
- canonical/cisco catalyst 3850-48pw-s
- canonical/cisco catalyst 3850-48t-e
- canonical/cisco catalyst 3850-48t-l
- canonical/cisco catalyst 3850-48t-s
- canonical/cisco catalyst 3850-48u-e
- canonical/cisco catalyst 3850-48u-l
- canonical/cisco catalyst 3850-48u-s
- canonical/cisco catalyst 3850-48xs-e
- canonical/cisco catalyst 3850-48xs-f-e
- canonical/cisco catalyst 3850-48xs-f-s
- canonical/cisco catalyst 3850-48xs-s
- canonical/cisco catalyst 9300
- canonical/cisco catalyst 9300-24p-a
- canonical/cisco catalyst 9300-24p-e
- canonical/cisco catalyst 9300-24s-a
- canonical/cisco catalyst 9300-24s-e
- canonical/cisco catalyst 9300-24t-a
- canonical/cisco catalyst 9300-24t-e
- canonical/cisco catalyst 9300-24u-a
- canonical/cisco catalyst 9300-24u-e
- canonical/cisco catalyst 9300-24ux-a
- canonical/cisco catalyst 9300-24ux-e
- canonical/cisco catalyst 9300-48p-a
- canonical/cisco catalyst 9300-48p-e
- canonical/cisco catalyst 9300-48s-a
- canonical/cisco catalyst 9300-48s-e
- canonical/cisco catalyst 9300-48t-a
- canonical/cisco catalyst 9300-48t-e
- canonical/cisco catalyst 9300-48u-a
- canonical/cisco catalyst 9300-48u-e
- canonical/cisco catalyst 9300-48un-a
- canonical/cisco catalyst 9300-48un-e
- canonical/cisco catalyst 9300-48uxm-a
- canonical/cisco catalyst 9300-48uxm-e
- canonical/cisco catalyst 9300l
- canonical/cisco catalyst 9300l-24p-4g-a
- canonical/cisco catalyst 9300l-24p-4g-e
- canonical/cisco catalyst 9300l-24p-4x-a
- canonical/cisco catalyst 9300l-24p-4x-e
- canonical/cisco catalyst 9300l-24t-4g-a
- canonical/cisco catalyst 9300l-24t-4g-e
- canonical/cisco catalyst 9300l-24t-4x-a
- canonical/cisco catalyst 9300l-24t-4x-e
- canonical/cisco catalyst 9300l-48p-4g-a
- canonical/cisco catalyst 9300l-48p-4g-e
- canonical/cisco catalyst 9300l-48p-4x-a
- canonical/cisco catalyst 9300l-48p-4x-e
- canonical/cisco catalyst 9300l-48t-4g-a
- canonical/cisco catalyst 9300l-48t-4g-e
- canonical/cisco catalyst 9300l-48t-4x-a
- canonical/cisco catalyst 9300l-48t-4x-e
- canonical/cisco catalyst c3850-12x48u-e
- canonical/cisco catalyst c3850-12x48u-l
- canonical/cisco catalyst c3850-12x48u-s
- canonical/cisco ios
- version/cisco ios/16.9.1