CVE-2019-1842 (GCVE-0-2019-1842)
Vulnerability from cvelistv5 – Published: 2019-06-05 16:20 – Updated: 2024-11-21 19:23
VLAI
EPSS
VEX
Title
Cisco IOS XR Software Secure Shell Authentication Vulnerability
Summary
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.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-21 18:58 UTC
CWE
Assigner
cisco
CNA
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| http://www.securityfocus.com/bid/108687 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XR Software |
Affected:
unspecified , < 6.1.4
(custom)
|
Date Public
2019-06-05 00:00
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