CVE-2023-45140

Group-based JIT MFA bypass on scp and sftp in The Bastion

State
Published
Severity
4.8 Medium
Published
Nov 8, 2023
Updated
Sep 12, 2024
Reserved
Oct 4, 2023

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.14.8 MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NGitHub_M

Weaknesses

  • CWE-306 Missing Authentication for Critical Function

Affected Products

ProductVersions
the-bastionovh
  • >= 3.0.0, <= 3.14.0Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.