CVE-2025-27429
Remediation / Mitigation Strategy: CVE-2025-27429
Vulnerability Description:
SAP S/4HANA contains a vulnerability in a function module exposed via RFC, allowing an attacker with user privileges to inject arbitrary ABAP code. This bypasses authorization checks, creating a backdoor and potentially leading to full system compromise.
Severity:
Critical (CVSS Score: 9.9)
Known Exploit:
Exploitation involves leveraging user privileges to inject arbitrary ABAP code through a vulnerable function module exposed via RFC. This can lead to unauthorized access, data manipulation, and denial of service.
Mitigation and Remediation:
Immediate Patching: Apply the security patch provided by SAP as soon as it becomes available. This is the primary and most effective remediation measure.
Code Review and Hardening: Conduct a thorough code review of the impacted function module and surrounding code to identify and eliminate any other potential vulnerabilities. Implement stricter authorization checks and input validation to prevent future code injection attempts.
Network Segmentation: Implement network segmentation to limit the blast radius of a potential compromise. Restrict access to the vulnerable function module and the SAP S/4HANA system based on the principle of least privilege.
Monitor RFC Communication: Implement monitoring and logging for RFC communication, specifically focusing on the vulnerable function module and any abnormal activity. Set up alerts for suspicious patterns or unauthorized access attempts.
User Access Review: Review and restrict user privileges based on the principle of least privilege. Ensure that users only have access to the functions and data they need to perform their job duties.
Security Hardening: Implement standard SAP security hardening measures, including password policies, security audits, and regular system scans.
Intrusion Detection/Prevention: Deploy and configure intrusion detection and prevention systems (IDS/IPS) to detect and block malicious activity targeting the vulnerable function module.
Vulnerability Scanning: Regularly scan your SAP S/4HANA systems for known vulnerabilities, including CVE-2025-27429, and apply patches promptly.
Emergency Response Plan: Develop and maintain an incident response plan specifically tailored to address potential compromises resulting from this vulnerability.
Assigner
- SAP SE [email protected]
Date
- Published Date: 2025-04-08 07:13:38
- Updated Date: 2025-04-08 18:13:53