Description
A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames. A successful exploit could result in logging data misrepresentation, user enumeration, or, in certain circumstances, a command authorization bypass. See the Details section for more information.
Published: 2019-06-05
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2019-10399 A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames. A successful exploit could result in logging data misrepresentation, user enumeration, or, in certain circumstances, a command authorization bypass. See the Details section for more information.
History

Thu, 21 Nov 2024 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco Asr 9001 Asr 9006 Asr 9010 Asr 9901 Asr 9904 Asr 9906 Asr 9910 Asr 9912 Asr 9922 Crs-1 16-slot Line Card Chassis Crs-1 16-slot Single-shelf System Crs-1 4-slot Single-shelf System Crs-1 8-slot Line Card Chassis Crs-1 8-slot Single-shelf System Crs-1 Fabric Card Chassis Crs-1 Line Card Chassis \(dual\) Crs-1 Line Card Chassis \(multi\) Crs-1 Multishelf System Crs-3 16-slot Single-shelf System Crs-3 4-slot Single-shelf System Crs-3 8-slot Single-shelf System Crs-3 Multishelf System Crs-8\/s-b Crs Crs-8\/scrs Crs-x 16-slot Single-shelf System Crs-x Multishelf System Ios Xr Firmware Ncs 6008-8-slot Chassis Network Convergence System 5508
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-21T19:23:06.717Z

Reserved: 2018-12-06T00:00:00.000Z

Link: CVE-2019-1842

cve-icon Vulnrichment

Updated: 2024-08-04T18:28:42.866Z

cve-icon NVD

Status : Modified

Published: 2019-06-05T17:29:00.430

Modified: 2024-11-21T04:37:30.750

Link: CVE-2019-1842

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses