CVE-2025-3361
CVE-2025-3361: HGiga iSherlock OS Command Injection Vulnerability
Description:
The web service of HGiga iSherlock suffers from an OS Command Injection vulnerability. This flaw allows unauthenticated, remote attackers to inject and execute arbitrary operating system commands on the affected server.
Severity:
- CVSS Score: 9.8 (Critical)
- Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Known Exploit:
Unauthenticated remote attackers can inject OS commands directly through the web service, potentially leading to full system compromise. The exact method of exploitation would depend on the specific vulnerable endpoint/parameter.
Remediation / Mitigation Strategy:
Immediate Action:
- Isolate: Immediately isolate the iSherlock system from the network if possible to prevent further exploitation while remediation steps are underway.
- Network Monitoring: Implement enhanced network monitoring to detect and block any suspicious activity targeting iSherlock servers.
Long-Term Remediation:
Patching: The most effective remediation is to apply the official patch released by HGiga as soon as it becomes available. Contact HGiga support for patch information. Verify the patch version and its successful installation.
Input Validation: Implement strict input validation on all user-supplied data that is processed by the iSherlock web service. This includes:
- Whitelisting: Use whitelisting to allow only known-good characters and patterns.
- Sanitization: Sanitize input by removing or escaping potentially dangerous characters.
- Encoding: Encode special characters to prevent them from being interpreted as commands.
Least Privilege: Ensure that the web service is running with the least privileges necessary to perform its functions. Restrict the user account’s access to only the required directories and files.
Code Review: Conduct a thorough code review of the iSherlock web service to identify and remediate any other potential command injection vulnerabilities. Pay close attention to any code that executes external commands or processes user-supplied data.
Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to filter malicious traffic and block command injection attempts. Configure the WAF with rules specific to common OS command injection payloads.
Post-Remediation Steps:
- Vulnerability Scanning: Perform a thorough vulnerability scan of the iSherlock system to verify that the vulnerability has been successfully remediated and to identify any other potential security weaknesses.
- Penetration Testing: Conduct penetration testing to simulate real-world attacks and validate the effectiveness of the remediation measures.
- Incident Response Plan: Review and update the incident response plan to include specific procedures for handling OS command injection attacks.
- Continuous Monitoring: Implement continuous security monitoring to detect and respond to any future security threats.
Workaround (if patching is not immediately available):
- Disable Unnecessary Features: If possible, disable any unnecessary features of the iSherlock web service that might be vulnerable.
- Restrict Access: Implement network-level access controls to restrict access to the iSherlock web service to only authorized users and systems.
Assigner
- TWCERT/CC [email protected]
Date
- Published Date: 2025-04-08 02:15:21
- Updated Date: 2025-04-08 18:13:53