CVE-2021-33676 in SAP
Summary
by MITRE • 07/14/2021
A missing authority check in SAP CRM, versions - 700, 701, 702, 712, 713, 714, could be leveraged by an attacker with high privileges to compromise confidentiality, integrity, or availability of the system.
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Analysis
by VulDB Data Team • 07/18/2021
The vulnerability identified as CVE-2021-33676 represents a critical authorization flaw within SAP CRM systems across multiple versions including 700, 701, 702, 712, 713, and 714. This weakness falls under the category of insufficient authorization checks, which is classified as CWE-285 in the Common Weakness Enumeration framework. The vulnerability specifically affects the authorization mechanism that governs access to sensitive system resources and operations within the customer relationship management platform.
The technical flaw manifests as a missing authority check that allows authenticated users with high privileges to bypass intended access controls. This condition creates a path for privilege escalation where attackers can potentially gain unauthorized access to confidential data, manipulate system integrity, or disrupt availability of critical business processes. The vulnerability exists in the authorization validation logic that should normally verify user permissions before granting access to protected resources or executing privileged operations.
From an operational perspective, this vulnerability poses significant risks to organizations relying on SAP CRM systems for customer data management, sales processes, and business intelligence. The impact extends beyond simple data exposure to encompass potential system compromise and business disruption. Attackers exploiting this vulnerability could access sensitive customer information, modify transactional data, or even cause system downtime that affects business operations. The presence of this flaw in multiple versions indicates a systemic issue within the authorization framework that requires immediate attention.
The attack surface for this vulnerability is particularly concerning as it targets the core authorization mechanisms of SAP CRM systems. According to MITRE ATT&CK framework, this weakness maps to privilege escalation techniques and credential access patterns where adversaries leverage existing high-privilege accounts to expand their access. Organizations should consider implementing comprehensive monitoring solutions to detect anomalous access patterns that might indicate exploitation attempts. The vulnerability's classification as a missing authority check aligns with ATT&CK technique T1078 which covers valid accounts and legitimate credentials.
Mitigation strategies should include immediate patching of affected SAP CRM versions to address the authorization flaw. Organizations must also implement additional access controls and monitoring measures to detect potential exploitation attempts. Security teams should conduct thorough access reviews and privilege audits to identify any unauthorized access patterns that might indicate successful exploitation. The implementation of principle of least privilege should be enforced to minimize the impact of potential compromise. Regular security assessments and vulnerability scanning should be performed to identify similar authorization weaknesses in other system components. Organizations should also consider implementing network segmentation and enhanced logging to provide better visibility into system access patterns and potential exploitation attempts.