CVE-2023-20046 - Vulnerability Details

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.

Published: 2023-05-09

Score: 8.8 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco ASR 5000 Series Software

affected

Version	Status	Constraints
`21.11.0`	affected	—
`21.11.1`	affected	—
`21.11.2`	affected	—
`21.11.3`	affected	—
`21.11.10`	affected	—
`21.11.11`	affected	—
`21.11.12`	affected	—
`21.11.13`	affected	—
`21.11.14`	affected	—
`21.11.4`	affected	—
`21.11.5`	affected	—
`21.11.6`	affected	—
`21.11.7`	affected	—
`21.11.8`	affected	—
`21.11.9`	affected	—
`21.11.15`	affected	—
`21.11.16`	affected	—
`21.11.17`	affected	—
`21.11.18`	affected	—
`21.11.19`	affected	—
`21.11.20`	affected	—
`21.11.21`	affected	—
`21.12.0`	affected	—
`21.12.1`	affected	—
`21.12.2`	affected	—
`21.12.3`	affected	—
`21.12.4`	affected	—
`21.12.5`	affected	—
`21.12.6`	affected	—
`21.12.10`	affected	—
`21.12.11`	affected	—
`21.12.12`	affected	—
`21.12.13`	affected	—
`21.12.14`	affected	—
`21.12.16`	affected	—
`21.12.17`	affected	—
`21.12.18`	affected	—
`21.12.7`	affected	—
`21.12.8`	affected	—
`21.12.9`	affected	—
`21.12.19`	affected	—
`21.12.20`	affected	—
`21.12.21`	affected	—
`21.12.22`	affected	—
`21.12.15`	affected	—
`21.13.0`	affected	—
`21.13.1`	affected	—
`21.13.2`	affected	—
`21.13.3`	affected	—
`21.13.4`	affected	—
`21.13.10`	affected	—
`21.13.11`	affected	—
`21.13.12`	affected	—
`21.13.13`	affected	—
`21.13.14`	affected	—
`21.13.15`	affected	—
`21.13.16`	affected	—
`21.13.17`	affected	—
`21.13.18`	affected	—
`21.13.19`	affected	—
`21.13.20`	affected	—
`21.13.5`	affected	—
`21.13.6`	affected	—
`21.13.7`	affected	—
`21.13.8`	affected	—
`21.13.9`	affected	—
`21.13.21`	affected	—
`21.14.0`	affected	—
`21.14.1`	affected	—
`21.14.10`	affected	—
`21.14.11`	affected	—
`21.14.12`	affected	—
`21.14.16`	affected	—
`21.14.17`	affected	—
`21.14.19`	affected	—
`21.14.2`	affected	—
`21.14.20`	affected	—
`21.14.3`	affected	—
`21.14.4`	affected	—
`21.14.5`	affected	—
`21.14.6`	affected	—
`21.14.7`	affected	—
`21.14.8`	affected	—
`21.14.9`	affected	—
`21.14.b12`	affected	—
`21.14.b13`	affected	—
`21.14.b14`	affected	—
`21.14.b15`	affected	—
`21.14.b17`	affected	—
`21.14.b18`	affected	—
`21.14.b19`	affected	—
`21.14.b20`	affected	—
`21.14.b21`	affected	—
`21.14.22`	affected	—
`21.14.b22`	affected	—
`21.14.23`	affected	—
`21.15.0`	affected	—
`21.15.1`	affected	—
`21.15.10`	affected	—
`21.15.11`	affected	—
`21.15.12`	affected	—
`21.15.13`	affected	—
`21.15.14`	affected	—
`21.15.15`	affected	—
`21.15.16`	affected	—
`21.15.17`	affected	—
`21.15.18`	affected	—
`21.15.19`	affected	—
`21.15.2`	affected	—
`21.15.20`	affected	—
`21.15.21`	affected	—
`21.15.22`	affected	—
`21.15.24`	affected	—
`21.15.25`	affected	—
`21.15.26`	affected	—
`21.15.27`	affected	—
`21.15.28`	affected	—
`21.15.29`	affected	—
`21.15.3`	affected	—
`21.15.30`	affected	—
`21.15.32`	affected	—
`21.15.33`	affected	—
`21.15.36`	affected	—
`21.15.37`	affected	—
`21.15.39`	affected	—
`21.15.4`	affected	—
`21.15.40`	affected	—
`21.15.41`	affected	—
`21.15.5`	affected	—
`21.15.6`	affected	—
`21.15.7`	affected	—
`21.15.8`	affected	—
`21.15.43`	affected	—
`21.15.45`	affected	—
`21.15.46`	affected	—
`21.15.47`	affected	—
`21.15.48`	affected	—
`21.15.51`	affected	—
`21.15.52`	affected	—
`21.15.53`	affected	—
`21.15.54`	affected	—
`21.15.55`	affected	—
`21.15.57`	affected	—
`21.15.58`	affected	—
`21.15.59`	affected	—
`21.15.60`	affected	—
`21.16.2`	affected	—
`21.16.3`	affected	—
`21.16.4`	affected	—
`21.16.5`	affected	—
`21.16.c10`	affected	—
`21.16.c11`	affected	—
`21.16.c12`	affected	—
`21.16.c13`	affected	—
`21.16.c9`	affected	—
`21.16.d0`	affected	—
`21.16.d1`	affected	—
`21.16.6`	affected	—
`21.16.c14`	affected	—
`21.16.7`	affected	—
`21.16.c15`	affected	—
`21.16.8`	affected	—
`21.16.c16`	affected	—
`21.16.10`	affected	—
`21.16.9`	affected	—
`21.16.c17`	affected	—
`21.16.c18`	affected	—
`21.16.c19`	affected	—
`21.17.0`	affected	—
`21.17.1`	affected	—
`21.17.2`	affected	—
`21.17.3`	affected	—
`21.17.4`	affected	—
`21.17.5`	affected	—
`21.17.6`	affected	—
`21.17.7`	affected	—
`21.17.8`	affected	—
`21.17.10`	affected	—
`21.17.11`	affected	—
`21.17.9`	affected	—
`21.17.12`	affected	—
`21.17.13`	affected	—
`21.17.14`	affected	—
`21.17.15`	affected	—
`21.17.16`	affected	—
`21.17.17`	affected	—
`21.17.18`	affected	—
`21.17.19`	affected	—
`21.18.0`	affected	—
`21.18.1`	affected	—
`21.18.2`	affected	—
`21.18.3`	affected	—
`21.18.4`	affected	—
`21.18.5`	affected	—
`21.18.11`	affected	—
`21.18.6`	affected	—
`21.18.7`	affected	—
`21.18.8`	affected	—
`21.18.9`	affected	—
`21.18.12`	affected	—
`21.18.13`	affected	—
`21.18.14`	affected	—
`21.18.15`	affected	—
`21.18.16`	affected	—
`21.18.17`	affected	—
`21.18.18`	affected	—
`21.18.19`	affected	—
`21.18.20`	affected	—
`21.18.21`	affected	—
`21.18.22`	affected	—
`21.18.23`	affected	—
`21.18.24`	affected	—
`21.18.25`	affected	—
`21.18.26`	affected	—
`21.19.0`	affected	—
`21.19.1`	affected	—
`21.19.2`	affected	—
`21.19.3`	affected	—
`21.19.n2`	affected	—
`21.19.4`	affected	—
`21.19.5`	affected	—
`21.19.n3`	affected	—
`21.19.n4`	affected	—
`21.19.6`	affected	—
`21.19.7`	affected	—
`21.19.8`	affected	—
`21.19.n5`	affected	—
`21.19.10`	affected	—
`21.19.9`	affected	—
`21.19.n6`	affected	—
`21.19.n7`	affected	—
`21.19.n8`	affected	—
`21.19.11`	affected	—
`21.19.n10`	affected	—
`21.19.n11`	affected	—
`21.19.n12`	affected	—
`21.19.n13`	affected	—
`21.19.n14`	affected	—
`21.19.n15`	affected	—
`21.19.n16`	affected	—
`21.19.n9`	affected	—
`21.19.n17`	affected	—
`21.19.n18`	affected	—
`21.20.0`	affected	—
`21.20.1`	affected	—
`21.20.SV1`	affected	—
`21.20.SV3`	affected	—
`21.20.SV5`	affected	—
`21.20.2`	affected	—
`21.20.3`	affected	—
`21.20.4`	affected	—
`21.20.5`	affected	—
`21.20.6`	affected	—
`21.20.7`	affected	—
`21.20.8`	affected	—
`21.20.9`	affected	—
`21.20.k6`	affected	—
`21.20.10`	affected	—
`21.20.11`	affected	—
`21.20.k7`	affected	—
`21.20.u8`	affected	—
`21.20.12`	affected	—
`21.20.13`	affected	—
`21.20.14`	affected	—
`21.20.k8`	affected	—
`21.20.p9`	affected	—
`21.20.15`	affected	—
`21.20.16`	affected	—
`21.20.17`	affected	—
`21.20.18`	affected	—
`21.20.19`	affected	—
`21.20.20`	affected	—
`21.20.21`	affected	—
`21.20.22`	affected	—
`21.20.23`	affected	—
`21.20.24`	affected	—
`21.20.25`	affected	—
`21.20.26`	affected	—
`21.20.28`	affected	—
`21.20.29`	affected	—
`21.20.30`	affected	—
`21.20.c22`	affected	—
`21.20.31`	affected	—
`21.20.32`	affected	—
`21.20.33`	affected	—
`21.20.34`	affected	—
`21.20.35`	affected	—
`21.20.27`	affected	—
`21.20.SV2`	affected	—
`21.21.0`	affected	—
`21.21.1`	affected	—
`21.21.2`	affected	—
`21.21.3`	affected	—
`21.21.KS2`	affected	—
`21.22.0`	affected	—
`21.22.n2`	affected	—
`21.22.n3`	affected	—
`21.22.3`	affected	—
`21.22.4`	affected	—
`21.22.5`	affected	—
`21.22.uj3`	affected	—
`21.22.11`	affected	—
`21.22.6`	affected	—
`21.22.7`	affected	—
`21.22.8`	affected	—
`21.22.n4`	affected	—
`21.22.n5`	affected	—
`21.22.ua0`	affected	—
`21.22.ua2`	affected	—
`21.22.ua3`	affected	—
`21.22.ua5`	affected	—
`21.22.12`	affected	—
`21.22.13`	affected	—
`21.22.n10`	affected	—
`21.22.n11`	affected	—
`21.22.n12`	affected	—
`21.22.n6`	affected	—
`21.22.n7`	affected	—
`21.22.n8`	affected	—
`21.22.n9`	affected	—
`21.22.n13`	affected	—
`21.23.0`	affected	—
`21.23.1`	affected	—
`21.23.10`	affected	—
`21.23.11`	affected	—
`21.23.12`	affected	—
`21.23.13`	affected	—
`21.23.14`	affected	—
`21.23.15`	affected	—
`21.23.16`	affected	—
`21.23.17`	affected	—
`21.23.2`	affected	—
`21.23.3`	affected	—
`21.23.4`	affected	—
`21.23.5`	affected	—
`21.23.6`	affected	—
`21.23.7`	affected	—
`21.23.8`	affected	—
`21.23.9`	affected	—
`21.23.b2`	affected	—
`21.23.b3`	affected	—
`21.23.c16`	affected	—
`21.23.c17`	affected	—
`21.23.n6`	affected	—
`21.23.n7`	affected	—
`21.23.n9`	affected	—
`21.23.18`	affected	—
`21.23.19`	affected	—
`21.23.21`	affected	—
`21.23.22`	affected	—
`21.23.23`	affected	—
`21.23.24`	affected	—
`21.23.25`	affected	—
`21.23.26`	affected	—
`21.23.27`	affected	—
`21.23.29`	affected	—
`21.23.30`	affected	—
`21.23.c18`	affected	—
`21.23.n10`	affected	—
`21.23.n11`	affected	—
`21.23.n8`	affected	—
`21.23.yn14`	affected	—
`21.24.0`	affected	—
`21.24.1`	affected	—
`21.24.2`	affected	—
`21.24.3`	affected	—
`21.25.0`	affected	—
`21.25.3`	affected	—
`21.25.4`	affected	—
`21.25.5`	affected	—
`21.25.10`	affected	—
`21.25.11`	affected	—
`21.25.12`	affected	—
`21.25.13`	affected	—
`21.25.14`	affected	—
`21.25.6`	affected	—
`21.25.7`	affected	—
`21.25.8`	affected	—
`21.25.9`	affected	—
`21.26.0`	affected	—
`21.26.1`	affected	—
`21.26.10`	affected	—
`21.26.13`	affected	—
`21.26.14`	affected	—
`21.26.15`	affected	—
`21.26.3`	affected	—
`21.26.5`	affected	—
`21.26.6`	affected	—
`21.26.7`	affected	—
`21.26.17`	affected	—
`21.27.0`	affected	—
`21.27.1`	affected	—
`21.27.2`	affected	—
`21.27.3`	affected	—
`21.27.4`	affected	—
`21.27.5`	affected	—
`21.27.m0`	affected	—
`21.28.0`	affected	—
`21.28.1`	affected	—
`21.28.2`	affected	—
`21.28.m0`	affected	—
`21.28.m1`	affected	—
`21.28.m2`	affected	—
`21.28.m3`	affected	—

Cisco

Cisco Ultra Cloud Core - User Plane Function

affected

Version	Status	Constraints
`N/A`	affected	—

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 available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
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.

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 0.00561.

Key SSVC decision points have not yet been added.

References

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

History

No history.

Subscriptions

Cisco Asr 5000 Asr 5500 Asr 5700 Staros Vpc-di Vpc-si

MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2023-05-09T13:06:10.748Z

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

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

Link: CVE-2023-20046

Vulnrichment

No data.

NVD

Status : Modified

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

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

Link: CVE-2023-20046

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Subscriptions

JSON object

JSON object

JSON object

JSON object

JSON object