CVE-2013-6901 in Garoon
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Space function in Cybozu Garoon before 3.7.0, when Firefox is used, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 03/02/2019
The CVE-2013-6901 vulnerability represents a cross-site scripting flaw discovered in Cybozu Garoon's Space function prior to version 3.7.0, specifically affecting users utilizing Firefox browsers. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a critical web application security weakness that enables attackers to inject malicious scripts into web pages viewed by other users. The vulnerability's exploitation specifically targets the Space function within the Garoon platform, which is designed for collaborative work environments and document management. The issue manifests when Firefox browsers process content generated by the vulnerable system, creating an attack surface that adversaries can leverage to execute malicious code within the context of authenticated user sessions.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within the Space function's handling of user-supplied data. Attackers can craft malicious payloads that exploit the lack of proper sanitization mechanisms when processing content, particularly when Firefox's rendering engine processes the injected scripts. The vulnerability's vector remains unspecified in the original description, suggesting that multiple attack paths exist within the Space function's data processing pipeline. This ambiguity indicates that the flaw likely exists in how the application handles various input types, including but not limited to user comments, document titles, or collaborative content fields that are subsequently displayed to other users. The vulnerability's impact is amplified by the fact that it requires no authentication to exploit, making it particularly dangerous in collaborative environments where users trust the platform's content.
The operational impact of CVE-2013-6901 extends beyond simple script execution, as it can enable attackers to perform a range of malicious activities including session hijacking, data theft, and privilege escalation. When successful, the vulnerability allows attackers to inject arbitrary web scripts that can steal cookies, redirect users to malicious sites, or modify content displayed to other users. The implications are particularly severe in enterprise environments where Garoon serves as a collaborative platform for sensitive business information. Attackers could exploit this vulnerability to gain access to confidential documents, manipulate collaborative content, or establish persistent access through session manipulation techniques. The vulnerability's targeting of Firefox browsers specifically suggests that the XSS protection mechanisms in other browsers may not be affected, creating a browser-specific attack vector that requires particular attention in security assessments.
Security mitigations for CVE-2013-6901 should focus on implementing comprehensive input validation and output encoding strategies that align with industry best practices. The most effective remediation involves updating to Cybozu Garoon version 3.7.0 or later, which includes proper sanitization of user inputs and enhanced output encoding mechanisms. Organizations should implement Content Security Policy headers to limit script execution and prevent unauthorized code injection. Additionally, the implementation of proper input validation frameworks that sanitize all user-supplied data before processing can prevent similar vulnerabilities from occurring in other components of the application. Security teams should conduct regular vulnerability assessments and penetration testing to identify potential XSS vectors within collaborative platforms, as the attack surface for such applications continues to expand with new features and integrations. The vulnerability also underscores the importance of maintaining up-to-date software versions and implementing robust security monitoring to detect and respond to potential exploitation attempts.