Advisory

On 24.04.2025 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within Java.

SAP Note 3594142 addresses "[CVE-2025-31324] Missing Authorization check in SAP NetWeaver (Visual Composer development server)" to prevent missing authorization check with a hot news risk for exploitation.

A workaround does exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process, the team suggests.

Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production.

Risk specification

SAP NetWeaver Visual Composer contains a critical vulnerability that allows an unauthenticated attacker to upload malicious executable binaries via an unprotected Metadata Uploader interface. Successful exploitation may result in remote code execution and full compromise of the host system. The risk rises since a public exploit exists!

Solution

Authentication requirements and authorization checks have been implemented to secure the application, effectively preventing unauthorized uploads and mitigating the risk of remote code execution. Circumstances exist that prevent the timely installation of a patch provided by the manufacturer. In such cases, you may consider applying the suggested workaround as a temporary or compensating mitigation: "A temporary workaround is described in KBA 3593336. Applicability should be assessed before use; applying the full correction is strongly recommended.".

Affected System

SAP Netweaver Application Server Java is part of the SAP NetWeaver Application Platform. It provides the complete infrastructure for deploying and running Java applications.

The AS Java Home: SAP Netweaver Application Server Java wiki
A dedicated SAP NetWeaver 7.40 Application Server for Java Security Guide exists.

The advisory is valid for

VCFRAMEWORK 7.50 ²

Releated advisories

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

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Notifications

Affected system Java

CVSS 10.0

Component EP-VC-INF

Patch Day2025-05

Released on2025/04/24

SAP Note 3594142

Workaround Yes

Advisory

Risk specification

Solution

Affected System

Disclaimer

_{Affected system}
Java

_CVSS
10.0

_Component
EP-VC-INF

_{Patch Day}
2025-05

_{Released
on}
2025/04/24

_{SAP Note}
3594142

_Workaround
Yes