CVE-2025-31327 Overview
CVE-2025-31327 is a data tampering vulnerability in the SAP Field Logistics Manage Logistics application. The flaw resides in the OData metadata property, which fails to properly restrict modification of certain fields. An authenticated attacker with low privileges can modify these fields over the network without user interaction. The issue is classified under [CWE-472: External Control of Assumed-Immutable Web Parameter]. Confidentiality and availability are not affected, but integrity of the application is impacted at a limited scope. SAP addressed the vulnerability through its Security Patch Day process.
Critical Impact
An authenticated remote attacker can tamper with OData metadata fields that the application assumes to be immutable, altering business data integrity in the SAP Field Logistics Manage Logistics module.
Affected Products
- SAP Field Logistics — Manage Logistics application
- OData metadata interface exposed by the affected application
- Deployments referenced in SAP Note #3359825
Discovery Timeline
- 2025-04-22 - CVE-2025-31327 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-31327
Vulnerability Analysis
The vulnerability affects how the SAP Field Logistics Manage Logistics application exposes OData metadata. Certain properties advertised through the OData service are assumed immutable by application logic but remain writable by external clients. An authenticated user can craft OData requests that overwrite these fields, altering values that downstream logic trusts. The result is unauthorized modification of business-relevant data within the logistics workflow. The impact is limited to integrity; the flaw does not disclose data or degrade availability.
Root Cause
The root cause is external control of an assumed-immutable web parameter [CWE-472]. The OData layer does not enforce server-side write protection on metadata-derived fields. The application accepts and persists client-supplied modifications to attributes that should be read-only. Missing authorization checks on individual property updates allow the tampering to succeed.
Attack Vector
Exploitation requires network access to the OData endpoint and valid low-privileged credentials. No user interaction is required. An attacker issues a modified OData PATCH, PUT, or MERGE request that targets fields the client is not expected to change. Because scope is unchanged and only integrity is affected, the attack yields limited but direct manipulation of Manage Logistics records.
No verified proof-of-concept code has been published. Refer to SAP Note #3359825 for vendor-supplied technical details.
Detection Methods for CVE-2025-31327
Indicators of Compromise
- Unexpected PATCH, PUT, or MERGE requests against Manage Logistics OData entity sets originating from low-privileged accounts.
- Modification of OData fields that business processes classify as read-only or system-controlled.
- Application audit log entries showing field updates without a corresponding legitimate business transaction.
Detection Strategies
- Enable and review SAP application-level change logs for the Manage Logistics entities exposed via OData.
- Correlate OData write operations with the authenticated user's expected role and business function.
- Baseline normal write patterns per user role and alert on deviations targeting metadata-derived properties.
Monitoring Recommendations
- Forward SAP Gateway and OData service logs to a centralized SIEM or data lake for continuous inspection.
- Monitor for high-frequency or off-hours writes to Manage Logistics OData endpoints.
- Track privilege usage of accounts authorized to invoke the Manage Logistics service and alert on scope drift.
How to Mitigate CVE-2025-31327
Immediate Actions Required
- Apply the fix documented in SAP Note #3359825 on all affected SAP Field Logistics systems.
- Review the SAP Security Patch Day Announcement and confirm the note is included in the current patch cycle for your landscape.
- Audit accounts authorized to access the Manage Logistics OData service and remove unnecessary privileges.
Patch Information
SAP has released a corrective patch through its Security Patch Day process. The remediation details are contained in SAP Note #3359825. Administrators should apply the note using standard SAP transport procedures and validate the fix in a non-production environment before promoting to production.
Workarounds
- Restrict network access to the Manage Logistics OData endpoint using SAP Web Dispatcher or reverse-proxy rules until patching is complete.
- Tighten role assignments so that only required business users hold write access to the affected OData service.
- Enable enhanced change-document logging on Manage Logistics entities to preserve forensic evidence of tampering attempts.
# Configuration example
# Refer to SAP Note #3359825 for vendor-supplied remediation steps.
# No public configuration snippet is available; follow SAP transport procedures.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
