CVE-2024-45279 in NetWeaver Application Server for ABAP
Summary
by MITRE • 09/10/2024
Due to insufficient input validation, CRM Blueprint Application Builder Panel of SAP NetWeaver Application Server for ABAP allows an unauthenticated attacker to craft a URL link which could embed a malicious JavaScript. When a victim clicks on this link, the script will be executed in the victim's browser giving the attacker the ability to access and/or modify information with no effect on availability of the application.
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Analysis
by VulDB Data Team • 03/10/2025
The vulnerability identified as CVE-2024-45279 represents a critical cross-site scripting flaw within the CRM Blueprint Application Builder Panel of SAP NetWeaver Application Server for ABAP. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. The vulnerability specifically affects the application builder panel component which is used to construct and configure customer relationship management applications within the SAP ecosystem.
The technical implementation of this flaw allows an unauthenticated attacker to construct malicious URLs that contain embedded JavaScript code within the application's interface. When a legitimate user with appropriate privileges clicks on such a crafted link, the malicious script executes within the victim's browser context. This occurs because the application fails to validate or sanitize input parameters that are directly incorporated into the web response without proper encoding or filtering mechanisms. The vulnerability operates at the application layer and leverages the trust relationship between the user's browser and the SAP application server to execute unauthorized code.
The operational impact of this vulnerability extends beyond simple data theft or modification capabilities. Attackers can exploit this flaw to perform session hijacking, steal sensitive user credentials, manipulate application data, or gain unauthorized access to restricted functionality within the CRM environment. The attack requires minimal privileges to initiate since the vulnerability is accessible to unauthenticated users, making it particularly dangerous in environments where users may inadvertently click on malicious links in phishing campaigns or compromised web pages. The vulnerability specifically targets the application's user interface components rather than core system functionality, meaning the attack does not disrupt service availability but instead compromises data integrity and confidentiality.
Organizations affected by this vulnerability should implement immediate mitigations including input validation controls, output encoding mechanisms, and web application firewall rules to prevent malicious URL parameters from being processed. The flaw aligns with CWE-79 which identifies cross-site scripting vulnerabilities as a fundamental security weakness in web applications. From an adversary perspective, this vulnerability maps to ATT&CK technique T1059.007 for scripting and T1566 for phishing campaigns. SAP has released patches addressing this vulnerability in their latest security updates, and organizations should prioritize applying these fixes while also implementing additional defensive measures such as user education about suspicious links and monitoring for anomalous application behavior. The vulnerability demonstrates the critical importance of input validation in web applications and the potential for seemingly minor flaws to enable significant security breaches in enterprise systems.