CVE-2014-4161 in Supplier Relationship Management
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in la/umTestSSO.jsp in SAP Supplier Relationship Management (SRM) allows remote attackers to inject arbitrary web script or HTML via the url parameter.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 03/06/2018
The vulnerability identified as CVE-2014-4161 represents a critical cross-site scripting flaw within SAP Supplier Relationship Management SRM software, specifically affecting the la/umTestSSO.jsp component. This vulnerability resides in the web application layer of SAP SRM systems, which are designed to facilitate supplier collaboration and procurement processes. The flaw manifests when the application fails to properly sanitize user input passed through the url parameter, creating an avenue for malicious actors to execute arbitrary web scripts within the context of authenticated user sessions.
The technical nature of this vulnerability aligns with CWE-79, which categorizes cross-site scripting as a code injection flaw occurring when untrusted data is improperly incorporated into web pages without adequate validation or escaping. The vulnerability exists in the server-side processing logic where the url parameter is directly used in the response without appropriate input sanitization or output encoding mechanisms. Attackers can exploit this weakness by crafting malicious URLs containing script payloads that will execute in the victim's browser when the page is loaded, potentially leading to session hijacking, data theft, or further exploitation of the compromised user context.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform privilege escalation attacks within the SRM environment. When an authenticated user visits a maliciously crafted URL, the injected script can access the user's session cookies, potentially allowing unauthorized access to supplier data, procurement records, and sensitive business information. The vulnerability affects the confidentiality, integrity, and availability of the SRM system, as attackers could manipulate supplier relationships, alter procurement processes, or extract confidential data. The attack vector is particularly dangerous because it requires no authentication to the underlying system itself, relying instead on social engineering to trick users into clicking malicious links.
Organizations utilizing SAP SRM systems should implement immediate mitigations including input validation and output encoding controls at the application level, ensuring all user-supplied data is properly sanitized before being rendered in web responses. The recommended defensive measures include implementing proper parameter validation for the url parameter, applying content security policies to restrict script execution, and deploying web application firewalls to detect and block malicious payloads. Additionally, SAP released patches and updates addressing this vulnerability, which should be applied immediately to remediate the security gap. The remediation process should follow established security protocols including thorough testing of patches in staging environments before production deployment to avoid service disruption while ensuring complete vulnerability remediation.
This vulnerability demonstrates the critical importance of input validation in web applications and aligns with ATT&CK technique T1059.007 for script injection attacks. The attack surface is particularly concerning in enterprise environments where SRM systems handle sensitive supplier information and procurement data, making proper security hardening essential for maintaining business continuity and protecting against advanced persistent threats that could exploit such weaknesses to gain deeper access to corporate networks.