CVE-2024-54449

Remediation/Mitigation Strategy for CVE-2024-54449

This document outlines the vulnerability, severity, known exploit details, and remediation/mitigation steps for CVE-2024-54449.

1. Vulnerability Description

  • Vulnerability: Arbitrary File Write leading to Remote Code Execution (RCE)
  • Description: The API used to interact with documents in the application contains two endpoints with a flaw. An authenticated attacker with read and write privileges on at least one existing document can write a file with controlled contents to an arbitrary location on the underlying file system.
  • Product Affected: LogicalDOC (based on the provided information)
  • Affected Component: Document interaction API endpoints
  • Reported By: Synopsys ([email protected])

2. Severity

  • CVSS Score: 8.7 (High) - based on the information provided.
  • Impact:
    • Confidentiality: High - Attackers can read sensitive data from the server.
    • Integrity: High - Attackers can modify system files and application data.
    • Availability: High - Attackers can disrupt services and potentially cause a denial-of-service.

3. Known Exploit

  • Exploitability: An authenticated attacker with ‘read’ and ‘write’ privileges on at least one existing document can exploit this vulnerability.
  • Attack Vector: Network
  • Attack Complexity: Low
  • User Interaction: None
  • Known Exploit Details: The specific steps involve manipulating the API endpoints related to document interaction to write a file with malicious content to an arbitrary location. This usually involves manipulating parameters related to file path and content. Further analysis of the LogicalDOC application and its API endpoints is required to fully understand the exploit. Commonly, this type of vulnerability is exploited by writing a web shell to a publicly accessible directory, which then allows the attacker to execute arbitrary commands.

4. Remediation/Mitigation Strategy

The following steps should be taken to remediate or mitigate this vulnerability:

A. Immediate Mitigation (Short-term):

  1. Access Control Restrictions:
    • Restrict Access: Immediately review and restrict access to the affected document interaction API endpoints. Limit access to only those users and systems that absolutely require it. Implement strong authentication and authorization mechanisms.
    • Least Privilege Principle: Enforce the principle of least privilege. Ensure that users only have the minimum necessary permissions to perform their tasks.
  2. Input Validation & Sanitization:
    • Strict Validation: Implement strict input validation and sanitization on all parameters related to file paths and content within the affected API endpoints. This includes whitelisting allowed characters, path sanitization (e.g., preventing directory traversal using ../), and length restrictions.
    • File Type Validation: Validate file types based on content (magic numbers) rather than just file extensions.
  3. Web Application Firewall (WAF) Rules:
    • Deploy WAF Rules: If using a WAF, deploy rules to detect and block attempts to exploit this vulnerability. Specifically, look for patterns associated with arbitrary file write attempts, such as attempts to use directory traversal sequences or write executable code to unexpected locations.
  4. Monitor & Alert:
    • Enhanced Monitoring: Implement enhanced monitoring of the affected API endpoints. Set up alerts for suspicious activity, such as unusual file access patterns, attempts to write files to sensitive locations, or attempts to use directory traversal sequences.
    • Log Analysis: Regularly review logs for any signs of attempted exploitation.

B. Long-term Remediation (Permanent Fix):

  1. Code Review & Patching:
    • Thorough Code Review: Conduct a thorough code review of the affected document interaction API endpoints to identify and fix the underlying flaw that allows arbitrary file writes.
    • Developer Training: Provide developers with training on secure coding practices, specifically focusing on preventing file manipulation vulnerabilities.
    • Official Patch: Apply the official patch provided by LogicalDOC as soon as it becomes available. This is the most effective way to address the vulnerability.
  2. File System Permissions:
    • Restrict Write Permissions: Ensure that the web server process only has the minimum necessary write permissions to the file system. Restrict write access to specific directories and files.
    • Principle of Least Privilege for File System Access: Apply the same principle of least privilege to the file system as you do to users.
  3. Regular Security Audits:
    • Penetration Testing: Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.
    • Vulnerability Scanning: Implement automated vulnerability scanning to detect known vulnerabilities in the application and its dependencies.
  4. Secure Configuration:
    • Follow Security Best Practices: Ensure that the LogicalDOC application is configured according to security best practices.
    • Disable Unnecessary Features: Disable any unnecessary features or functionalities that could potentially introduce vulnerabilities.

C. Verification:

  • After applying the remediation steps, thoroughly test the application to verify that the vulnerability has been successfully addressed and that the mitigation measures are effective. Perform penetration testing to simulate real-world attack scenarios.

5. Communication

  • Keep stakeholders informed about the vulnerability, its impact, and the remediation efforts. Communicate the timelines for patching and mitigation.

6. Timeline

  • Immediate Mitigation: Implement the immediate mitigation steps within 24-48 hours of identifying the vulnerability.
  • Long-term Remediation: Apply the official patch as soon as it becomes available. Plan for a code review and development effort to address the underlying flaw, with a target completion date to be determined based on the complexity of the fix.
  • Continuous Monitoring: Maintain continuous monitoring and regular security audits to proactively identify and address new vulnerabilities.

This remediation strategy should be tailored to the specific environment and implementation of LogicalDOC. Further investigation and analysis are recommended to fully understand the vulnerability and its impact.

Assigner

Date

  • Published Date: 2025-03-14 18:15:31
  • Updated Date: 2025-03-14 18:15:31

More Details

CVE-2024-54449