CVE-2023-20046

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:cisco:staros::::::::
	cpe:2.3:o:cisco:staros::::::::
	cpe:2.3:o:cisco:staros::::::::
	cpe:2.3:o:cisco:staros::::::::
	cpe:2.3:o:cisco:staros::::::::
	cpe:2.3:o:cisco:staros::::::::
	cpe:2.3:o:cisco:staros:21.23.n:::::::*
	cpe:2.3:o:cisco:staros:21.24:::::::*
	cpe:2.3:o:cisco:staros:21.27.m:::::::*
	cpe:2.3:o:cisco:staros:21.28.m:::::::*

OR	cpe:2.3:h:cisco:asr_5000:-:::::::*
	cpe:2.3:h:cisco:asr_5500:-:::::::*
	cpe:2.3:h:cisco:asr_5700:-:::::::*
	cpe:2.3:h:cisco:vpc-di:-:::::::*
	cpe:2.3:h:cisco:vpc-si:-:::::::*

History

No history.

Information

Published : 2023-05-09 18:15

Updated : 2024-11-21 07:40

NVD link : CVE-2023-20046

Mitre link : CVE-2023-20046

CVE.ORG link : CVE-2023-20046

JSON object : View

Products Affected

cisco

vpc-si
staros
asr_5000
asr_5500
asr_5700
vpc-di

CWE

CWE-289

Authentication Bypass by Alternate Name

CWE-522

Insufficiently Protected Credentials

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