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OpenAdvisories
Medium · 4.8 CVE-2023-45140 EUVD-2023-49452

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

Published Nov 8, 2023 · Updated Sep 12, 2024 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
ovh the-bastion >= 3.0.0, <= 3.14.0 —

References