Vulnerability Monitor

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CVE-2017-12239

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.8, with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-09-29T01:34:49.030

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-264
Type: Primary
CWE-798

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	ios_xe	3.13.0as	Yes
Operating System	cisco	ios_xe	3.13.0s	Yes
Operating System	cisco	ios_xe	3.13.1s	Yes
Operating System	cisco	ios_xe	3.13.2as	Yes
Operating System	cisco	ios_xe	3.13.2s	Yes
Operating System	cisco	ios_xe	3.13.3s	Yes
Operating System	cisco	ios_xe	3.13.4s	Yes
Operating System	cisco	ios_xe	3.13.5as	Yes
Operating System	cisco	ios_xe	3.13.5s	Yes
Operating System	cisco	ios_xe	3.13.6as	Yes
Operating System	cisco	ios_xe	3.13.6s	Yes
Operating System	cisco	ios_xe	3.14.0s	Yes
Operating System	cisco	ios_xe	3.14.1s	Yes
Operating System	cisco	ios_xe	3.14.2s	Yes
Operating System	cisco	ios_xe	3.14.3s	Yes
Operating System	cisco	ios_xe	3.14.4s	Yes
Operating System	cisco	ios_xe	3.15.0s	Yes
Operating System	cisco	ios_xe	3.15.1cs	Yes
Operating System	cisco	ios_xe	3.15.1s	Yes
Operating System	cisco	ios_xe	3.15.2s	Yes
Operating System	cisco	ios_xe	3.15.3s	Yes
Operating System	cisco	ios_xe	3.15.4s	Yes
Operating System	cisco	ios_xe	3.16.0as	Yes
Operating System	cisco	ios_xe	3.16.0bs	Yes
Operating System	cisco	ios_xe	3.16.0cs	Yes
Operating System	cisco	ios_xe	3.16.0s	Yes
Operating System	cisco	ios_xe	3.16.1as	Yes
Operating System	cisco	ios_xe	3.16.1s	Yes
Operating System	cisco	ios_xe	3.16.2as	Yes
Operating System	cisco	ios_xe	3.16.2bs	Yes
Operating System	cisco	ios_xe	3.16.2s	Yes
Operating System	cisco	ios_xe	3.16.3as	Yes
Operating System	cisco	ios_xe	3.16.3s	Yes
Operating System	cisco	ios_xe	3.16.4as	Yes
Operating System	cisco	ios_xe	3.16.4bs	Yes
Operating System	cisco	ios_xe	3.16.4cs	Yes
Operating System	cisco	ios_xe	3.16.4ds	Yes
Operating System	cisco	ios_xe	3.16.4es	Yes
Operating System	cisco	ios_xe	3.16.4gs	Yes
Operating System	cisco	ios_xe	3.16.4s	Yes
Operating System	cisco	ios_xe	3.16.5as	Yes
Operating System	cisco	ios_xe	3.16.5bs	Yes
Operating System	cisco	ios_xe	3.16.5s	Yes
Operating System	cisco	ios_xe	3.17.0s	Yes
Operating System	cisco	ios_xe	3.17.1as	Yes
Operating System	cisco	ios_xe	3.17.1s	Yes
Operating System	cisco	ios_xe	3.17.2s	Yes
Operating System	cisco	ios_xe	3.17.3s	Yes
Operating System	cisco	ios_xe	3.18.0as	Yes
Operating System	cisco	ios_xe	3.18.0s	Yes
Operating System	cisco	ios_xe	3.18.0sp	Yes
Operating System	cisco	ios_xe	3.18.1asp	Yes
Operating System	cisco	ios_xe	3.18.1bsp	Yes
Operating System	cisco	ios_xe	3.18.1csp	Yes
Operating System	cisco	ios_xe	3.18.1gsp	Yes
Operating System	cisco	ios_xe	3.18.1hsp	Yes
Operating System	cisco	ios_xe	3.18.1isp	Yes
Operating System	cisco	ios_xe	3.18.1s	Yes
Operating System	cisco	ios_xe	3.18.1sp	Yes
Operating System	cisco	ios_xe	3.18.2asp	Yes
Operating System	cisco	ios_xe	3.18.2s	Yes
Operating System	cisco	ios_xe	3.18.2sp	Yes
Operating System	cisco	ios_xe	16.3.1a	Yes
Operating System	cisco	ios_xe	16.3.5b	Yes
Operating System	cisco	ios_xe	16.3.6	Yes
Operating System	cisco	ios_xe	16.3.7	Yes
Operating System	cisco	ios_xe	16.3.8	Yes
Operating System	cisco	ios_xe	16.3.9	Yes
Operating System	cisco	ios_xe	16.3.10	Yes
Operating System	cisco	ios_xe	16.3.11	Yes
Operating System	cisco	ios_xe	16.4.3	Yes
Operating System	cisco	ios_xe	16.5.1	Yes
Operating System	cisco	ios_xe	16.9.3a	Yes
Operating System	cisco	ios_xe	16.9.3s	Yes

References

http://www.securityfocus.com/bid/101042 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1039454 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1039455 Third Party Advisory, VDB Entry ([email protected])
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-cc Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/101042 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1039454 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1039455 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-cc Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.