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 0.00693.

Key SSVC decision points have not yet been added.

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.

Project Subscriptions

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

Projects

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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.

Weaknesses