Description
SAP NetWeaver Enterprise Portal Administration is vulnerable if a privileged user uploads untrusted or malicious content that, upon deserialization, could result in a high impact on the confidentiality, integrity, and availability of the host system.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2026-10456
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2026-10456 pertains to SAP NetWeaver Enterprise Portal Administration. The issue arises when a privileged user uploads untrusted or malicious content, which, upon deserialization, can lead to severe impacts on the confidentiality, integrity, and availability of the host system. The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical vulnerability.
CVSS Vector Breakdown:
- AV:N (Network Vector): The vulnerability can be exploited remotely over the network.
- AC:L (Low Complexity): The attack requires low skill or resources to exploit.
- PR:H (High Privileges Required): The attacker needs high-level privileges to exploit the vulnerability.
- UI:N (No User Interaction): No user interaction is required for the exploit to succeed.
- S:C (Changed Scope): The vulnerability can affect resources beyond the security scope managed by the security authority.
- C:H (High Confidentiality Impact): There is a high impact on the confidentiality of the system.
- I:H (High Integrity Impact): There is a high impact on the integrity of the system.
- A:H (High Availability Impact): There is a high impact on the availability of the system.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves a privileged user uploading malicious content that is subsequently deserialized by the SAP NetWeaver Enterprise Portal Administration. Deserialization vulnerabilities can lead to arbitrary code execution, allowing attackers to:
- Execute malicious code on the host system.
- Gain unauthorized access to sensitive data.
- Compromise the integrity of the system by altering data or configurations.
- Cause denial of service (DoS) by crashing the system or making it unavailable.
3. Affected Systems and Software Versions
The vulnerability specifically affects:
- Product: SAP NetWeaver Enterprise Portal Administration
- Version: EP-RUNTIME 7.50
Organizations using this version of SAP NetWeaver Enterprise Portal Administration are at risk and should prioritize mitigation efforts.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Apply Security Patches: Immediately apply the security patch provided by SAP. Refer to the SAP Security Notes for detailed instructions.
- Restrict Privileges: Limit the number of users with privileged access to the system. Implement the principle of least privilege.
- Input Validation: Enhance input validation mechanisms to ensure that only trusted content is uploaded and processed.
- Monitoring and Logging: Implement robust monitoring and logging to detect and respond to any suspicious activities related to content uploads and deserialization processes.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to European organizations using SAP NetWeaver Enterprise Portal Administration, particularly those in critical sectors such as finance, healthcare, and government. The high impact on confidentiality, integrity, and availability can lead to data breaches, financial losses, and disruptions in critical services. Effective mitigation and timely patching are essential to maintain the security and resilience of the European cybersecurity landscape.
6. Technical Details for Security Professionals
Deserialization Vulnerabilities: Deserialization vulnerabilities occur when untrusted data is used to abuse the logic of an application, inflict denial of service (DoS) attacks, or execute arbitrary code. In this case, the deserialization process in SAP NetWeaver Enterprise Portal Administration can be exploited to execute malicious code, leading to severe security implications.
Detection and Response:
- Intrusion Detection Systems (IDS): Deploy IDS to monitor network traffic for suspicious activities related to deserialization processes.
- Security Information and Event Management (SIEM): Use SIEM solutions to correlate logs and detect anomalies that may indicate an exploitation attempt.
- Incident Response Plan: Develop and maintain an incident response plan to quickly address and mitigate any detected exploitation attempts.
References:
By following these recommendations and staying vigilant, organizations can effectively mitigate the risks associated with EUVD-2026-10456 and enhance their overall cybersecurity posture.