CVE-2022-41264 in BASIS
Summary
by MITRE • 12/13/2022
Due to the unrestricted scope of the RFC function module, SAP BASIS - versions 731, 740, 750, 751, 752, 753, 754, 755, 756, 757, 789, 790, 791, allows an authenticated non-administrator attacker to access a system class and execute any of its public methods with parameters provided by the attacker. On successful exploitation the attacker can have full control of the system to which the class belongs, causing a high impact on the integrity of the application.
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Analysis
by VulDB Data Team • 12/13/2022
This vulnerability exists within SAP BASIS components across multiple versions including 731, 740, 750, 751, 752, 753, 754, 755, 756, 757, 789, 790, and 791, representing a significant security flaw that allows authenticated attackers to escalate privileges beyond their intended access levels. The core issue stems from an unrestricted scope within the RFC function module that permits unauthorized users to access system classes and execute public methods with attacker-provided parameters. This represents a critical privilege escalation vulnerability that directly violates the principle of least privilege and allows for unauthorized system control. The vulnerability is classified under CWE-269 as "Improper Privilege Management" and aligns with ATT&CK technique T1068 which covers "Exploitation for Privilege Escalation" in the MITRE ATT&CK framework.
The technical implementation of this vulnerability allows an authenticated non-administrator user to bypass normal access controls and gain unauthorized access to system classes that should only be accessible to administrators or system-level processes. When exploited, the attacker can execute any public method within these system classes, providing them with complete control over the target system. This unrestricted access enables the attacker to manipulate system configurations, access sensitive data, modify application behavior, and potentially establish persistence mechanisms within the SAP environment. The impact on system integrity is severe as the attacker can alter core application functionality and compromise the entire system architecture.
The operational implications of this vulnerability extend beyond simple privilege escalation to encompass complete system compromise and potential data exfiltration. Attackers can leverage this vulnerability to gain unauthorized access to critical business data, manipulate financial transactions, alter user permissions, and potentially move laterally within the network to compromise additional systems. The high impact on application integrity means that organizations may face significant business disruption, regulatory compliance violations, and potential financial losses. This vulnerability particularly affects enterprise environments where SAP systems handle sensitive corporate data and critical business processes, making it a prime target for sophisticated attack campaigns.
Organizations should implement immediate mitigations including applying the relevant SAP security patches and updates released to address this vulnerability. Network segmentation and access control measures should be strengthened to limit the potential impact of successful exploitation attempts. Regular security assessments and monitoring of SAP system access logs should be conducted to detect anomalous behavior that may indicate exploitation attempts. Additionally, implementing principle of least privilege configurations and regular privilege reviews can help minimize the potential damage from such vulnerabilities. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing robust access control mechanisms in enterprise SAP environments.