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

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CVE-2017-12239

Severity CVSS v4.0:
Pending analysis
Type:
CWE-264 Permissions, Privileges, and Access Control
Publication date:
29/09/2017
Last modified:
20/04/2025

Description

A vulnerability in motherboard console ports of line cards for Cisco ASR 1000 Series Aggregation Services Routers and Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, physical attacker to access an affected device's operating system. The vulnerability exists because an engineering console port is available on the motherboard of the affected line cards. An attacker could exploit this vulnerability by physically connecting to the console port on the line card. A successful exploit could allow the attacker to gain full access to the affected device's operating system. This vulnerability affects only Cisco ASR 1000 Series Routers that have removable line cards and Cisco cBR-8 Converged Broadband Routers, if they are running certain Cisco IOS XE 3.16 through 16.5 releases. Cisco Bug IDs: CSCvc65866, CSCve77132.

Impact

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

Base Score: 6.80 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
6.80
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:3.13.0as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.2as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.3s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.4s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.5as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.5s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.6s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.3s:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools