CVE-2025-31324 Overview
SAP NetWeaver Visual Composer Metadata Uploader is not protected with a proper authorization, allowing unauthenticated agent to upload potentially malicious executable binaries that could severely harm the host system. This could significantly affect the confidentiality, integrity, and availability of the targeted system.
Critical Impact
An unauthenticated attacker could exploit this vulnerability to upload and execute malicious binaries, potentially compromising the entire host system and allowing full control over the affected system.
Affected Products
- SAP NetWeaver 7.50
Discovery Timeline
- {{ DISCOVERY_DATE }} - Vulnerability discovered by {{ RESEARCHER_NAME }}
- {{ DISCLOSURE_DATE }} - Responsible disclosure to SAP
- {{ CVE_ASSIGNED_DATE }} - CVE-2025-31324 assigned
- {{ PATCH_DATE }} - SAP releases security patch
- 2025-04-24 - CVE-2025-31324 published to NVD
- 2025-10-31 - Last updated in NVD database
Technical Details for CVE-2025-31324
Vulnerability Analysis
This vulnerability arises from improper authorization checks within the SAP NetWeaver Visual Composer Metadata Uploader. An unauthenticated user can leverage this weakness to upload arbitrary executable files to the system, which can be triggered remotely to execute malicious payloads.
Root Cause
The root cause of CVE-2025-31324 is the missing authorization check in the metadata uploader module, which fails to authenticate and validate requests adequately.
Attack Vector
This vulnerability can be exploited over the network without requiring authentication, given that the attacker has network access to the vulnerable SAP NetWeaver service.
# Example exploitation code (sanitized)
import requests
url = "http://target-system/sapNetweaverUploader"
files = {'file': open('malicious_binary.exe', 'rb')}
response = requests.post(url, files=files)
print(response.status_code)
Detection Methods for CVE-2025-31324
Indicators of Compromise
- Unauthorized file uploads detected
- Unexpected executable files in SAP NetWeaver directories
- Unusual network traffic to the SAP NetWeaver instance
Detection Strategies
Utilize file integrity monitoring and network intrusion detection systems to identify unauthorized uploads and traffic patterns indicating exploitation attempts.
Monitoring Recommendations
Apply deep packet inspection to monitor for file upload requests and deploy continuous monitoring solutions like SentinelOne to detect anomalous system behavior associated with this vulnerability.
How to Mitigate CVE-2025-31324
Immediate Actions Required
- Apply the most recent security patches provided by SAP immediately.
- Restrict network access to SAP NetWeaver instances to trusted entities.
- Monitor log files for any unauthorized access and file uploads.
Patch Information
SAP has released a patch to address this vulnerability, available through their official security advisory: SAP Security Patch Day.
Workarounds
If immediate patching is not possible, disable the metadata uploader functionality temporarily and implement network-level security measures to isolate the vulnerable system.
# Example workaround configuration - disabling metadata uploader service
systemctl disable sapnetweaver-metadataloader.service
systemctl stop sapnetweaver-metadataloader.service
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
