CVE-2025-0053 Overview
SAP NetWeaver Application Server for ABAP and ABAP Platform contains an information disclosure vulnerability that allows an unauthenticated attacker to gain unauthorized access to system information. By manipulating a specific URL parameter, attackers can retrieve sensitive details such as system configuration without authentication. This vulnerability has a limited impact on confidentiality but may be leveraged to facilitate further attacks or exploits against the affected SAP environment.
Critical Impact
Unauthenticated attackers can remotely extract system configuration details via URL parameter manipulation, potentially enabling reconnaissance for more severe follow-up attacks.
Affected Products
- SAP Basis versions 700, 701, 702
- SAP Basis versions 731, 740, 750, 751, 752, 753, 754, 755, 756, 757
- SAP NetWeaver Application Server for ABAP and ABAP Platform
Discovery Timeline
- 2025-01-14 - CVE-2025-0053 published to NVD
- 2025-10-24 - Last updated in NVD database
Technical Details for CVE-2025-0053
Vulnerability Analysis
This vulnerability is classified under CWE-209 (Generation of Error Message Containing Sensitive Information). The SAP NetWeaver Application Server for ABAP and ABAP Platform fails to properly restrict access to system configuration information through its web interface. An unauthenticated attacker with network access can craft requests with specific URL parameters to extract sensitive system details that should be protected.
The vulnerability requires no authentication and can be exploited remotely across the network with low attack complexity. While the direct impact is limited to information disclosure affecting confidentiality, the exposed system configuration data can provide attackers with valuable reconnaissance information for planning more sophisticated attacks against the SAP infrastructure.
Root Cause
The root cause lies in improper input validation and authorization controls on URL parameters within the SAP NetWeaver Application Server. The application fails to adequately verify whether the requesting user has proper authorization before disclosing system configuration information. This allows error messages or responses containing sensitive data to be returned to unauthenticated users.
Attack Vector
The attack is network-based and requires no user interaction or special privileges. An attacker can exploit this vulnerability by:
- Identifying an exposed SAP NetWeaver Application Server for ABAP
- Crafting HTTP requests with specific URL parameters designed to trigger information disclosure
- Parsing the server responses to extract system configuration details
- Leveraging the disclosed information to plan further attacks against the SAP environment
The vulnerability does not require authentication, making it particularly dangerous for internet-facing SAP systems. The disclosed configuration information may include details about system architecture, installed components, and other data useful for reconnaissance.
Detection Methods for CVE-2025-0053
Indicators of Compromise
- Unusual HTTP requests to SAP NetWeaver endpoints with atypical URL parameters
- Increased volume of unauthenticated requests targeting system information endpoints
- Log entries showing repeated access attempts to configuration-related URLs from external IP addresses
- Error responses containing verbose system information being returned to unauthenticated sessions
Detection Strategies
- Monitor SAP ICM (Internet Communication Manager) logs for suspicious URL parameter patterns
- Implement web application firewall rules to detect and block requests attempting to extract system configuration
- Configure alerting for unauthenticated access attempts to sensitive SAP endpoints
- Review SAP Security Audit Log (SM21) for anomalous access patterns
Monitoring Recommendations
- Enable detailed logging for HTTP/HTTPS traffic to SAP NetWeaver Application Server
- Deploy network intrusion detection systems (NIDS) with signatures for SAP-specific attack patterns
- Establish baseline metrics for normal SAP access patterns to identify deviations
- Integrate SAP logs with SIEM solutions for centralized monitoring and correlation
How to Mitigate CVE-2025-0053
Immediate Actions Required
- Apply the security patch referenced in SAP Note #3536461 immediately
- Review SAP NetWeaver Application Server configurations for internet exposure
- Implement network segmentation to limit access to SAP systems from untrusted networks
- Enable enhanced logging to detect potential exploitation attempts
Patch Information
SAP has released a security patch addressing this vulnerability as part of their Security Patch Day. Organizations should apply the fix documented in SAP Note #3536461. The patch is applicable to all affected SAP Basis versions from 700 through 757. Administrators should consult the SAP Security Patch Day portal for detailed patching instructions and prerequisites.
Workarounds
- Restrict network access to SAP NetWeaver Application Server to trusted IP ranges using firewall rules
- Implement a reverse proxy or web application firewall to filter malicious URL parameters
- Disable or restrict access to unnecessary HTTP handlers and services in the ICM configuration
- Review and harden SAP ICF (Internet Communication Framework) services to minimize attack surface
# Example: Restrict SAP ICM access via profile parameter
# Add to instance profile (DEFAULT.PFL or instance-specific)
icm/server_port_<xx> = PROT=HTTP,PORT=<port>,TIMEOUT=60,PROCTIMEOUT=600
# Consider implementing IP-based access restrictions at network level
# Consult SAP Note #3536461 for specific configuration guidance
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
