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SamlApplication · Mendix

CVE-2023-29129

CRITICAL · 9.8 CVSS v3.1 Published 2023-06-13
Fix available
A fix is available. Upgrade to 1.18.0 / 2.4.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability has been identified in Mendix SAML (Mendix 7 compatible) (All versions >= V1.17.3 < V1.18.0), Mendix SAML (Mendix 7 compatible) (All versions >= V1.16.4 < V1.17.3), Mendix SAML (Mendix 8 compatible) (All versions >= V2.3.0 < V2.4.0), Mendix SAML (Mendix 8 compatible) (All versions >= V2.2.0 < V2.3.0), Mendix SAML (Mendix 9 latest compatible, New Track) (All versions >= V3.3.1 < V3.6.1), Mendix SAML (Mendix 9 latest compatible, New Track) (All versions >= V3.1.9 < V3.3.1), Mendix SAML (Mendix 9 latest compatible, Upgrade Track) (All versions >= V3.3.0 < V3.6.0), Mendix SAML (Mendix 9 latest compatible, Upgrade Track) (All versions >= V3.1.8 < V3.3.0), Mendix SAML (Mendix 9.12/9.18 compatible, New Track) (All versions >= V3.3.1 < V3.3.15), Mendix SAML (Mendix 9.12/9.18 compatible, Upgrade Track) (All versions >= V3.3.0 < V3.3.14), Mendix SAML (Mendix 9.6 compatible, New Track) (All versions >= V3.1.9 < V3.2.7), Mendix SAML (Mendix 9.6 compatible, Upgrade Track) (All versions >= V3.1.8 < V3.2.6). The affected versions of the module insufficiently verify the SAML assertions. This could allow unauthenticated remote attackers to bypass authentication and get access to the application. This CVE entry describes the incomplete fix for CVE-2023-25957 in a specific non default configuration.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
SamlApplication
Affected:>= 1.16.4, < 1.18.0>= 2.2.0, < 2.4.0>= 3.1.8, < 3.6.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.18.0 / 2.4.0 / 3.6.1 or later
Fixed in 1.18.02.4.03.6.1
Vendor patch cert-portal.siemens.com →
Recommended fix High confidence

Upgrade to SAML module version 1.18.0 (for v1), 2.4.0 (for v2), or 3.6.1 (for v3) - specific track versions also available (3.3.15 for New Track 9.12/9.18, 3.3.14 for Upgrade Track 9.12/9.18)

  1. 1. Identify the specific Mendix SAML module version in use by checking the module's metadata or project dependencies.
  2. 2. Obtain the official vendor patch document from https://cert-portal.siemens.com/productcert/pdf/ssa-851884.pdf for detailed vendor guidance.
  3. 3. For SAML module version 1.x: Upgrade to version 1.18.0 or later.
  4. 4. For SAML module version 2.x: Upgrade to version 2.4.0 or later.
  5. 5. For SAML module version 3.x: Upgrade to version 3.6.1 or later (or 3.3.15/3.3.14 for the 9.12/9.18 compatible tracks).
  6. 6. After upgrading, verify the SAML authentication configuration to ensure it is not using the non-default configuration that was vulnerable.
  7. 7. Test SAML login functionality to confirm the fix works correctly.
Caveat Review release notes for potential breaking changes between versions; test thoroughly in non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $2,300. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-29129 in production — separate from our analysis above.

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