CVE-2011-5040 in Biznis Heroj
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Infoproject Biznis Heroj allow remote attackers to inject arbitrary web script or HTML via the config parameter to (1) nalozi_naslov.php and (2) widget.dokumenti_lista.php.
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Analysis
by VulDB Data Team • 12/21/2024
The CVE-2011-5040 vulnerability represents a critical cross-site scripting flaw discovered in the Infoproject Biznis Heroj web application, a content management system designed for business operations. This vulnerability resides in the application's handling of user-supplied input within specific PHP script endpoints, creating a persistent security risk that allows malicious actors to execute arbitrary code within the context of victim browsers. The vulnerability specifically affects two distinct files within the application's architecture, demonstrating a pattern of input validation failure that extends across multiple components of the system.
The technical flaw manifests through improper sanitization of the config parameter within the nalozi_naslov.php and widget.dokumenti_lista.php scripts. When these scripts process user input without adequate validation or encoding, they fail to properly escape special characters that could be interpreted as HTML or JavaScript code by web browsers. This creates an injection point where attackers can embed malicious payloads that execute when legitimate users access the affected pages. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically representing a stored XSS variant where malicious code persists in the application's data storage and executes on subsequent page loads.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it enables attackers to perform session hijacking, redirect users to malicious sites, or execute commands on behalf of authenticated users. Attackers can exploit this weakness to steal sensitive business information, manipulate content displayed to users, or establish persistent access points within the organization's web infrastructure. The vulnerability's presence in core content management components like document listings and title loading functions suggests that it could affect critical business operations and potentially compromise the entire application ecosystem. This type of vulnerability directly aligns with ATT&CK technique T1566.001 for initial access through web shell deployment and represents a significant risk to business continuity and data integrity.
Mitigation strategies for CVE-2011-5040 should focus on implementing comprehensive input validation and output encoding mechanisms across all user-supplied parameters within the affected PHP scripts. Organizations must ensure that all input data undergoes proper sanitization before being processed or stored, with particular attention to HTML encoding of special characters such as angle brackets, quotes, and script tags. The implementation of Content Security Policy headers and proper HTTP-only flags for session cookies can provide additional defense layers. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other application components, while application developers should adopt secure coding practices that prevent XSS attacks through proper parameter validation and output encoding. Patch management procedures must be established to ensure timely updates to vulnerable software versions, with the vulnerability classified as high-risk due to its remote exploitability and potential for persistent access within business environments.