CVE-2025-30091

Remediation/Mitigation Strategy for CVE-2025-30091

This document outlines the remediation and mitigation strategy for CVE-2025-30091, a critical Remote Code Execution (RCE) vulnerability affecting Tiny MoxieManager PHP versions prior to 4.0.0.

1. Vulnerability Description:

• CVE ID: CVE-2025-30091
• Component: Tiny MoxieManager PHP
• Affected Versions: Versions before 4.0.0
• Description: The vulnerability allows unauthenticated attackers to inject and execute arbitrary code in Tiny MoxieManager PHP through the InstallCommand. Specifically, attacker-controlled data supplied to InstallCommand can be inserted into config.php. Critically, InstallCommand remains available even after the installation process is complete.

2. Severity:

• CVSS Score: 9.4 (Critical)
• Severity Level: Critical
• Impact: Successful exploitation leads to complete compromise of the server. Attackers can gain full control, including:
  • Data exfiltration
  • Malware deployment
  • Service disruption
  • Privilege escalation
  • Lateral movement within the network

3. Known Exploits:

• The vulnerability is described as allowing unauthenticated attackers to inject and execute arbitrary code. Therefore, publicly available exploit code is likely to exist or will be rapidly developed. The exact exploit details likely involve crafting a malicious request to the InstallCommand that contains PHP code. This PHP code will be written to config.php and subsequently executed when the config.php file is included.

4. Remediation Strategy:

The primary and required remediation strategy is to upgrade to Tiny MoxieManager PHP version 4.0.0 or later immediately.

• Action: Download and install the latest version of Tiny MoxieManager PHP from the official source. Follow the vendor’s upgrade instructions carefully.
• Verification: After upgrading, verify the installed version to ensure the vulnerability is patched. Test the application functionality to confirm the upgrade did not introduce any regressions.

5. Mitigation Strategy (If Upgrade is Not Immediately Possible):

If an immediate upgrade to version 4.0.0 or later is not possible due to compatibility issues or other constraints, the following mitigation measures should be implemented immediately and in conjunction:

• Disable the Installer: The most direct mitigation is to completely disable or remove the installer. This should involve deleting the relevant files and directories. However, extreme caution is advised.

  • Action: Carefully identify and remove (or rename) the install directory and associated files. Important: Back up these files first in case rollback is needed. Consult MoxieManager documentation for the exact files and directories related to the installation process. Ensure this action does not break other application functionality.
  • Verification: Verify that the installer is no longer accessible by attempting to navigate to the installer’s URL in a web browser. It should return a 403 Forbidden or 404 Not Found error.

• Network Segmentation: Restrict network access to the MoxieManager PHP instance to only authorized users and systems.

  • Action: Implement firewall rules and access control lists (ACLs) to limit network traffic to the server running MoxieManager PHP. Only allow access from trusted IP addresses or networks.

• Web Application Firewall (WAF) Rules: Implement WAF rules to detect and block malicious requests targeting the InstallCommand.

  • Action: Configure a WAF (e.g., ModSecurity, AWS WAF) to inspect HTTP requests for suspicious patterns associated with this vulnerability. Specifically, look for requests to the installer with potentially malicious PHP code in the parameters. Consider blocking requests containing common PHP function names (e.g., eval, system, exec) within request parameters. Carefully monitor the WAF logs for false positives.

• Monitor Logs: Continuously monitor system and application logs for any suspicious activity related to this vulnerability.

  • Action: Centralize logging to a security information and event management (SIEM) system. Configure alerts to trigger on suspicious events, such as attempts to access the installer or unusual file modifications.

• Input Validation (Temporary Measure): Implement strict input validation on all parameters related to the InstallCommand if possible without disrupting core functionality. This is a complex task and not a reliable long-term solution, but it can provide an additional layer of defense.

  • Action: Enforce strict data type and format validation on all input fields. Sanitize input data to remove potentially malicious characters or code. This is likely to be complex and application-specific.

6. Communication Plan:

• Inform all relevant stakeholders (e.g., system administrators, security team, application owners) about the vulnerability and the remediation/mitigation strategy.
• Provide regular updates on the progress of the remediation efforts.
• Establish a communication channel for reporting any issues or concerns related to the vulnerability.

7. Timeline:

• Immediate: Implement mitigation measures (if upgrade is not immediately possible).
• Urgent (within 24-48 hours): Upgrade to Tiny MoxieManager PHP version 4.0.0 or later.
• Ongoing: Monitor logs, review WAF rules, and stay informed about any new information related to this vulnerability.

8. Rollback Plan:

• Prior to implementing any changes, create a full backup of the system and application.
• If any issues arise after implementing the remediation/mitigation measures, revert to the backup.
• Carefully document all steps taken during the rollback process.

Disclaimer: This remediation/mitigation strategy is based on the information available at the time of writing and should be adapted to the specific environment. It is crucial to consult the vendor’s documentation and security advisories for the most up-to-date information and recommendations. This is not exhaustive and requires careful implementation and monitoring.

Assigner

• MITRE [email protected]

Date

• Published Date: 2025-03-25 00:00:00
• Updated Date: 2025-03-25 14:15:32

More Details

CVE-2025-30091