CVE-2019-12649
Cisco IOS XE Software Digital Signature Verification Bypass
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.
INFO
Published Date :
Sept. 25, 2019, 8:15 p.m.
Last Modified :
Oct. 9, 2019, 11:45 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-12649.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-digsig-bypass | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-12649 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-12649 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CWE Cisco Systems, Inc. CWE-347 -
Initial Analysis by [email protected]
Oct. 04, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-digsig-bypass No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-digsig-bypass Vendor Advisory Added CWE CWE-347 Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xe:16.8\(1\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:catalyst_3850-12s-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-12s-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-12xs-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-12xs-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-16xs-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-16xs-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24p-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24p-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24p-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24pw-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24s-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24s-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24t-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24t-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24t-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24u-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24u-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24u-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24xs-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24xs-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24xu-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24xu-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-24xu-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-32xs-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-32xs-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48f-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48f-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48f-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48p-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48p-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48p-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48pw-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48t-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48t-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48t-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48u-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48u-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48u-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48xs-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48xs-f-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48xs-f-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_3850-48xs-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24p-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24p-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24s-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24s-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24t-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24t-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24u-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24u-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24ux-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-24ux-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48p-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48p-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48s-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48s-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48t-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48t-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48u-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48u-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48un-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48un-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48uxm-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300-48uxm-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24p-4g-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24p-4g-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24p-4x-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24p-4x-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24t-4g-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24t-4g-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24t-4x-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-24t-4x-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48p-4g-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48p-4g-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48p-4x-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48p-4x-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48t-4g-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48t-4g-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48t-4x-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9300l-48t-4x-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_c3850-12x48u-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_c3850-12x48u-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_c3850-12x48u-s:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:cisco:ios:16.9.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 25, 2019
Action Type Old Value New Value Changed 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. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-12649 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-12649
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile