CVE-2024-47919
📋 TL;DR
This vulnerability in Tiki Wiki CMS allows attackers to execute arbitrary operating system commands on the server by injecting malicious input. It affects all Tiki Wiki installations running vulnerable versions, potentially giving attackers full control over affected systems.
💻 Affected Systems
- Tiki Wiki CMS Groupware
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal data, install malware, pivot to other systems, and maintain persistent access.
Likely Case
Remote code execution leading to data theft, website defacement, or installation of backdoors for future attacks.
If Mitigated
Limited impact if proper input validation and command sanitization are implemented, potentially reducing to denial of service or limited information disclosure.
🎯 Exploit Status
OS command injection vulnerabilities typically have low exploitation complexity once the vulnerable endpoint is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Tiki Wiki security advisories for specific patched version
Vendor Advisory: https://tiki.org/Security
Restart Required: No
Instructions:
1. Check current Tiki Wiki version. 2. Update to the latest patched version from official Tiki Wiki repository. 3. Verify the update completed successfully. 4. Test critical functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation to reject any user input containing shell metacharacters or command sequences
Implement server-side validation: filter_input(INPUT_GET, 'param', FILTER_SANITIZE_STRING);
Web Application Firewall Rules
allDeploy WAF rules to block requests containing shell command patterns and special characters
ModSecurity rule: SecRule ARGS "[;|&`$()]" "id:1001,phase:2,deny,msg:'OS Command Injection Attempt'"
Cloudflare WAF: Enable OS command injection protection
🧯 If You Can't Patch
- Isolate the Tiki Wiki server in a restricted network segment with minimal external access
- Implement strict network filtering to allow only necessary traffic and block all shell-related outbound connections
🔍 How to Verify
Check if Vulnerable:
Check Tiki Wiki version against vendor security advisory. Test input fields for command injection using safe payloads like '; echo test;' in controlled environment.Check Version:
Check Tiki Wiki admin panel or view tiki-index.php?page=About for version informationVerify Fix Applied:
Verify Tiki Wiki version is updated to patched version. Test previously vulnerable endpoints with command injection payloads to confirm they are now properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Web server logs showing special characters like ; | & ` $ ( ) in URLs or POST data
- Multiple failed command injection attempts
Network Indicators:
- Outbound connections to suspicious IPs from web server process
- Unusual network traffic patterns following web requests
SIEM Query:
source="web_logs" AND ("cmd.exe" OR "/bin/sh" OR "bash" OR "powershell" OR ";" OR "|" OR "&" OR "`" OR "$" OR "(" OR ")")