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CVE-2023-20046

Published: May 9, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-289
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.9%
Top 46.3%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

A vulnerability in the key-based SSH authentication feature of Cisco StarOS Software could allow an authenticated, remote attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of user-supplied credentials. An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user. There are workarounds that address this vulnerability.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-289CWE-522

Affected Products

staroscisco
On-premNetwork Device
Networking Infrastructure / router-switch
Cisco ASR 5000 Series SoftwareCisco
On-prem
Networking Infrastructure / router-switch
Cisco Ultra Cloud Core - User Plane FunctionCisco
On-prem
Networking Infrastructure / router-switch
StarOSCisco Systems Inc.
On-prem
Networking Infrastructure / router-switch
ASR 5000Cisco Systems Inc.
On-premNetwork Device
Networking Infrastructure / router-switch
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Credential Access
View detailed technique mapping

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h
sec.cloudapps.cisco.com

Timeline

Published
May 9, 2023
Last Updated
Nov 21, 2024

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