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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00554.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Cisco
  • Asr 5000
  • Asr 5500
  • Asr 5700
  • Staros
  • Vpc-di
  • Vpc-si

Configuration 1 [-]

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:-:*:*:*:*:*:*:*

No data.

No data.

Advisories
Source ID Title
EUVD EUVD EUVD-2023-24225 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.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h cve-icon cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-08-02T08:57:35.853Z

Reserved: 2022-10-27T18:47:50.317Z

Link: CVE-2023-20046

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-05-09T18:15:11.697

Modified: 2024-11-21T07:40:25.733

Link: CVE-2023-20046

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.