CVE-2015-7729 in HANA
Summary
by MITRE
Eval injection in test-net.xsjs in the Web-based Development Workbench in SAP HANA Developer Edition DB 1.00.091.00.1418659308 allows remote authenticated users to execute arbitrary XSJS code via unspecified vectors, aka SAP Security Note 2153892.
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Analysis
by VulDB Data Team • 04/12/2018
The vulnerability identified as CVE-2015-7729 represents a critical server-side request forgery and code injection flaw within the Web-based Development Workbench of SAP HANA Developer Edition version 1.00.091.00.1418659308. This issue specifically affects the test-net.xsjs component which serves as a network testing utility within the development environment. The flaw exists in the evaluation injection mechanism that processes user-supplied input without proper sanitization or validation, creating a pathway for malicious actors to execute arbitrary XSJS code on the target system.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the test-net.xsjs script execution context. Attackers can leverage this weakness by crafting malicious requests that bypass normal access controls and inject harmful code sequences into the evaluation process. The vulnerability operates at the application layer and requires authentication to exploit, as the attack vector specifically targets authenticated users with access to the Web-based Development Workbench. This authentication requirement reduces the attack surface compared to fully public exploits but still poses significant risk within organizations where development environments are accessible to multiple users.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to manipulate the underlying database system and potentially escalate privileges within the SAP HANA environment. The attack can result in unauthorized data access, data modification, or complete system compromise depending on the privileges of the authenticated user. The vulnerability affects the integrity and confidentiality of sensitive development data, potentially exposing source code, database schemas, and other intellectual property. According to industry standards, this vulnerability maps to CWE-94, which describes improper control of generation of code, and aligns with ATT&CK technique T1059.007 for execution through scripting languages.
Organizations should implement immediate mitigation strategies including applying the relevant SAP security note 2153892, which provides specific patches and code modifications to address the injection vectors. Network segmentation and access control measures should be enforced to limit access to the development workbench to authorized personnel only. Regular security assessments and input validation reviews should be conducted to prevent similar vulnerabilities from emerging in other components of the SAP ecosystem. The remediation process must include thorough testing of the patched components to ensure that the fix does not introduce regressions in legitimate development operations while maintaining the security posture of the overall SAP HANA infrastructure.