The User Management Engine (UME) in NetWeaver Application Server for Java (NW AS Java) utilizes an obsolete cryptographic algorithm for encrypting User Mapping data. This weakness could allow an attacker with high-privileged access to exploit the vulnerability under specific conditions potentially leading to partial disclosure of sensitive information. This has low impact on confidentiality with no impact on integrity and availability of the application. The CVSS score for this vulnerability is 3, indicating a low severity level.
Risk to organizations includes the potential for unauthorized access to sensitive user mapping information, which could have downstream effects on data integrity and system performance. It is crucial for organizations to assess their environments for exposure and to implement appropriate remediation measures. Organizations should prioritize patching immediately.
The vulnerability was published on January 13, 2026, and has since been classified as deferred, indicating that it may not be in active exploitation. However, organizations using the affected application should remain vigilant and monitor for any updates from SAP regarding patches or mitigations.
This vulnerability highlights the importance of regularly reviewing cryptographic implementations and ensuring they conform to current security standards. Organizations are encouraged to conduct periodic security assessments to identify and remediate such vulnerabilities.
Vulnerability Details
The User Management Engine (UME) in SAP NetWeaver Application Server for Java utilizes an obsolete cryptographic algorithm for encrypting User Mapping data. The CVSS version 3.1 score is 3, categorized under low severity. The attack vector is classified as network-based with high attack complexity and requires high privileges.
The vulnerability affects the confidentiality of the application but has no impact on integrity and availability. The CWE classification for this issue is CWE-326, which pertains to the use of a weak cryptographic algorithm.
Technical Analysis
The root cause of this vulnerability stems from the use of an obsolete cryptographic algorithm, which can be exploited under specific conditions. Attackers with high privileges can potentially access sensitive user mapping information. The attack vector is network-based; however, the complexity is high, requiring significant effort and access rights to exploit. There is no user interaction required, and the impact on confidentiality is low, with no effect on integrity or availability.
Risk & Impact Analysis
Real-world deployment risk includes the possibility of unauthorized disclosure of sensitive user mapping data. While the attack complexity is high and the immediate blast radius is limited to high-privileged users, organizations should not underestimate the potential for this vulnerability to expose critical information. Organizations should consider this vulnerability during their security assessments and prioritize remediation in their patch cycles.
Given the low CVSS score, the urgency for remediation is categorized as low. However, organizations are encouraged to actively monitor for updates from SAP regarding any patches that may mitigate this vulnerability.
Organizations should also focus on improving their cryptographic practices and regularly updating their security protocols to mitigate similar issues in the future.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected. Organizations should consult SAP security notes for further information on specific patch releases.
Mitigation & Remediation
Organizations should apply patches provided by SAP as soon as they become available. Regularly updating cryptographic algorithms and configurations can help prevent similar vulnerabilities. For guidance on security testing and vulnerability management, organizations can refer to penetration testing services.
Detection Guidance
Monitoring logs for unauthorized access attempts and anomalies in user activity can help detect potential exploitation attempts. Configuring alerts for changes in user mapping data may also provide early warning signals of exploitation.
AppSecure Threat Intelligence Insight
This vulnerability emphasizes the need for organizations to maintain strong security practices, especially regarding cryptographic implementations. Regular assessments and adherence to security standards are essential for mitigating risks associated with obsolete algorithms. By employing a proactive approach to security, organizations can better protect themselves against potential threats.
For further insights into vulnerability management, organizations should consider a vulnerability management program and explore best practices in penetration testing methodology to enhance their security posture.
Organizations are encouraged to stay informed about emerging threats and trends in the cybersecurity landscape to effectively adapt their strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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