Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2019-12649

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
25/09/2019
Last modified:
09/10/2019

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.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
6.70
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xe:16.8\(1\):*:*:*:*:*:*:*
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:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools