CVE-2020-6307 in Basis
Summary
by MITRE
Automated Note Search Tool (update provided in SAP Basis 7.0, 7.01, 7.02, 7.31, 7.4, 7.5, 7.51, 7.52, 7.53 and 7.54) does not perform sufficient authorization checks leading to the reading of sensitive information.
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Analysis
by VulDB Data Team • 03/21/2024
The vulnerability identified as CVE-2020-6307 affects the Automated Note Search Tool component within SAP Basis environments across multiple versions including 7.0, 7.01, 7.02, 7.31, 7.4, 7.5, 7.51, 7.52, 7.53, and 7.54. This security flaw represents a critical authorization bypass issue that allows unauthorized users to access sensitive information through improper access control mechanisms. The vulnerability specifically manifests in the search functionality of the note management system where insufficient authorization checks are implemented during data retrieval operations. The flaw falls under the CWE-285 authorization checking weakness category, which directly impacts the principle of least privilege and proper access control enforcement within SAP systems.
The technical implementation of this vulnerability stems from the failure of the Automated Note Search Tool to validate user permissions before executing search queries against the underlying database. When users perform search operations within the note management interface, the system should verify that the authenticated user possesses appropriate authorization rights to access the requested information. However, the flawed implementation allows users to bypass these checks and retrieve notes that should only be accessible to authorized personnel with specific roles and permissions. This weakness enables information disclosure through unauthorized data access patterns that should be restricted based on user entitlements and security policies.
The operational impact of this vulnerability extends beyond simple information disclosure, as it represents a fundamental breakdown in SAP's security framework that could enable attackers to gather sensitive business information, confidential notes, and potentially system-related data. The affected environment typically includes enterprise resource planning systems where note management serves as a repository for various business-critical information. Attackers exploiting this vulnerability could potentially access proprietary business strategies, internal communications, security-related notes, or other confidential data that should remain restricted to authorized personnel only. This information could be leveraged for further attacks or used for competitive intelligence purposes, making the vulnerability particularly dangerous in enterprise environments.
Organizations affected by this vulnerability should implement immediate mitigation strategies including applying the official SAP security patches released for the affected versions, reviewing and strengthening authorization controls within the SAP system, and implementing additional monitoring for unauthorized search activities. The recommended approach involves configuring proper authorization objects for note access, ensuring that users cannot bypass the system's access control mechanisms through search functionality, and conducting comprehensive security audits to identify any other potential authorization bypass vulnerabilities. This vulnerability aligns with ATT&CK technique T1078 for valid accounts and T1069 for credential access, as it allows unauthorized access to system resources through legitimate user accounts that should have been restricted from accessing certain data. Organizations should also consider implementing network segmentation, database access logging, and regular security assessments to prevent exploitation of this and similar authorization-related vulnerabilities in their SAP environments.