CVE-2024-12665 in Rebuild
Summary
by MITRE • 12/16/2024
A vulnerability, which was classified as problematic, was found in ruifang-tech Rebuild 3.8.5. Affected is an unknown function of the component Task Comment Attachment Upload. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 02/17/2025
This vulnerability resides within the ruifang-tech Rebuild 3.8.5 software platform, specifically targeting the Task Comment Attachment Upload functionality. The issue represents a classic cross site scripting vulnerability that allows malicious actors to inject arbitrary JavaScript code into the application's response. The flaw manifests when users upload attachments to task comments, creating an opportunity for attackers to execute malicious scripts in the context of other users' browsers. This type of vulnerability falls under the CWE-79 category for cross site scripting, which is one of the most prevalent and dangerous web application security flaws according to the CWE database. The vulnerability's classification as remotely exploitable means that attackers do not require physical access to the system or local network privileges to carry out attacks, making it particularly dangerous in enterprise environments where users may interact with the application from various locations.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the attachment upload process. When users submit comments along with attachments, the application fails to properly sanitize the data before rendering it back to other users. This allows attackers to craft malicious payloads that can execute in the browser context of other users who view the affected comments. The vulnerability's exploitability is further enhanced by the fact that it has been publicly disclosed, meaning that threat actors have access to specific techniques for leveraging the flaw. The lack of vendor response despite early notification creates a particularly concerning scenario where organizations remain exposed to potential attacks without official patches or mitigations. The attack surface extends beyond simple script execution to potentially include session hijacking, credential theft, and data exfiltration operations that could compromise entire user sessions.
The operational impact of this vulnerability extends far beyond simple script injection, as it provides attackers with persistent access to user contexts within the Rebuild platform. Once exploited, attackers can potentially escalate privileges, access sensitive project data, manipulate task assignments, and monitor user activities. The vulnerability affects all users who interact with task comments and attachments, making it particularly damaging in collaborative environments where multiple stakeholders share information. Organizations using ruifang-tech Rebuild may face significant risks including intellectual property theft, regulatory compliance violations, and reputational damage if attackers successfully exploit this flaw. The vulnerability's presence in a task management system creates additional attack vectors for social engineering campaigns, where attackers might use the XSS capabilities to craft convincing phishing attempts or manipulate project timelines and deliverables. From an ATT&CK framework perspective, this vulnerability maps to multiple techniques including T1566 for social engineering and T1059 for command and scripting interpreter usage.
Organizations should immediately implement compensating controls while awaiting vendor patches or updates to address this vulnerability. Input validation should be strengthened at multiple layers including client-side and server-side sanitization of all comment and attachment data. Output encoding must be implemented to prevent script execution in all user-facing interfaces where comments and attachments are displayed. Network-level protections such as web application firewalls can help detect and block known attack patterns, though these should not be considered a complete solution. Regular security monitoring and log analysis should be enhanced to detect potential exploitation attempts, particularly around attachment upload activities and comment creation events. The lack of vendor response necessitates immediate action from affected organizations to evaluate their risk exposure and implement temporary mitigations. Security teams should also consider conducting comprehensive penetration testing to identify any additional vulnerabilities that may exist within the same application components or related systems. The vulnerability's disclosure status means that threat intelligence feeds should be monitored for any emerging exploitation techniques or indicators of compromise associated with this specific flaw.