CVE-2023-45140

Name: CVE-2023-45140
Creator: NVD / NIST
Published: 2023-11-08T16:15:09.8+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.6/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2023-45140 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. The Bastion provides authentication, authorization, traceability and auditability for SSH accesses. SCP and SFTP plugins don't honor group-based JIT MFA. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The Bastion provides authentication, authorization, traceability and auditability for SSH accesses. SCP and SFTP plugins don't honor group-based JIT MFA. Establishing a SCP/SFTP connection through The Bastion via a group access where MFA is enforced does not ask for additional factor. This abnormal behavior only applies to per-group-based JIT MFA. Other MFA setup types, such as Immediate MFA, JIT MFA on a per-plugin basis and JIT MFA on a per-account basis are not affected. This issue has been patched in version 3.14.15.

Metrics

CVSS 3.1

4.6/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

EPSS Probability

0.39%

30.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Ovh	The-Bastion	< 3.14.15

References

https://github.com/ovh/the-bastion/releases/tag/v3.14.15Patch
https://github.com/ovh/the-bastion/security/advisories/GHSA-pr4q-w883-pf5xMitigation, Vendor Advisory
https://github.com/ovh/the-bastion/releases/tag/v3.14.15Patch
https://github.com/ovh/the-bastion/security/advisories/GHSA-pr4q-w883-pf5xMitigation, Vendor Advisory

Timeline

Published: Nov 8, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45140?

How severe is CVE-2023-45140?

CVE-2023-45140 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45140?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45140?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST