CVE-2006-0833 in Barracuda Directory
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Barracuda Directory 1.1 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors to the (1) Add URL and (2) Suggest Category module. NOTE: the provenance of this information is unknown; portions of the details are obtained from third party information.
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Analysis
by VulDB Data Team • 08/04/2017
The vulnerability identified as CVE-2006-0833 represents a critical cross-site scripting flaw affecting Barracuda Directory version 1.1. This security weakness resides within the web application's input validation mechanisms, specifically impacting two distinct modules: the Add URL functionality and the Suggest Category module. The vulnerability allows remote attackers to execute malicious scripts in the context of other users' browsers, potentially leading to unauthorized actions and data theft. The unspecified attack vectors suggest that the flaw may manifest through various input fields or parameters within these modules, making the attack surface broader than initially apparent.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. This classification indicates that the application fails to properly sanitize user-supplied input before incorporating it into dynamic web pages. The flaw exists in the application's handling of user-provided data within the Add URL and Suggest Category modules, where input validation is insufficient to prevent malicious script injection. Attackers can exploit this weakness by crafting specially formatted input that gets executed when other users view the affected pages, creating a persistent threat that can compromise user sessions and potentially escalate to full system compromise.
The operational impact of this vulnerability extends beyond simple script execution, as it creates opportunities for session hijacking, credential theft, and data manipulation. When users interact with the affected modules, their browsers execute the injected malicious code, potentially leading to unauthorized access to sensitive information or modification of directory entries. The remote nature of the attack means that adversaries can exploit this vulnerability from anywhere on the internet without requiring physical access to the target system. This makes the vulnerability particularly dangerous in environments where the directory service is accessible to external users or where it serves as a component in larger web applications.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the affected modules. The recommended approach involves sanitizing all user input before processing and ensuring that any dynamic content is properly escaped to prevent script execution. Security patches should be applied immediately to update the Barracuda Directory software to versions that address this vulnerability. Additionally, implementing web application firewalls and content security policies can provide additional layers of protection. Organizations should also conduct thorough security testing of their web applications to identify similar vulnerabilities in other modules or components that may be susceptible to cross-site scripting attacks. The remediation process should include comprehensive code reviews and the implementation of secure coding practices that prevent the injection of malicious content into web applications. This vulnerability serves as a reminder of the critical importance of input validation in web application security and the potential consequences of inadequate sanitization of user-supplied data.