CVE-2023-45140

    Dashboard / Vulnerabilities / CVE-2023-45140

    CVE-2023-45140

    Published: 8 Nov 2023Last Modified: 28 Oct 2026

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

    Details: 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.

    References: https://github.com/ovh/the-bastion/releases/tag/v3.14.15, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45140.json, https://github.com/ovh/the-bastion/security/advisories/GHSA-pr4q-w883-pf5x, https://nvd.nist.gov/vuln/detail/CVE-2023-45140

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -137c7b54540595f557debe3c804f00553119bd60

    Affected versions

    v3.14.00

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-45140 | CVE-DB