CVE-2023-48710
📋 TL;DR
CVE-2023-48710 is a critical directory traversal vulnerability in iTop IT service management platform that allows unauthenticated attackers to access restricted files from the env-production folder. This affects all iTop installations with vulnerable versions, potentially exposing sensitive configuration files or credentials stored by third-party modules.
💻 Affected Systems
- Combodo iTop
📦 What is this software?
Itop by Combodo
Itop by Combodo
Itop by Combodo
⚠️ Risk & Real-World Impact
Worst Case
Attackers retrieve sensitive configuration files containing database credentials, API keys, or other secrets, leading to complete system compromise and data exfiltration.
Likely Case
Attackers access configuration files that may contain sensitive information, potentially enabling further attacks or data leakage.
If Mitigated
No sensitive files are exposed if env-production folder contains only non-sensitive files and proper access controls are implemented.
🎯 Exploit Status
Simple directory traversal attack via pages/exec.php. No authentication required. CVSS 9.8 indicates trivial exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.7.10, 3.0.4, 3.1.1, or 3.2.0
Vendor Advisory: https://github.com/Combodo/iTop/security/advisories/GHSA-g652-q7cc-7hfc
Restart Required: No
Instructions:
1. Backup your iTop installation and database. 2. Download the patched version from official iTop repository. 3. Replace vulnerable files with patched versions. 4. Verify the fix by checking version and testing access restrictions.
🔧 Temporary Workarounds
Restrict access to pages/exec.php
allBlock or restrict access to the vulnerable script using web server configuration or WAF rules.
# Apache: <Location /pages/exec.php> Require all denied </Location>
# Nginx: location ~ /pages/exec\.php$ { deny all; }
Remove sensitive files from env-production
allAudit and remove any sensitive files from the env-production folder to reduce impact if exploited.
# Review env-production contents: ls -la /path/to/itop/env-production/
# Remove sensitive files if found
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to iTop instances
- Deploy web application firewall (WAF) with directory traversal protection rules
🔍 How to Verify
Check if Vulnerable:
Attempt to access http://[iTop-url]/pages/exec.php?exec_env=production&exec_module=install&exec_page=config.php (or similar env-production files). If files are returned, system is vulnerable.Check Version:
Check iTop version in setup page or configuration: grep 'ITOP_VERSION' /path/to/itop/approot.inc.phpVerify Fix Applied:
After patching, attempt the same access test. Should receive access denied or proper error message instead of file contents.📡 Detection & Monitoring
Log Indicators:
- Multiple 200 OK responses to pages/exec.php with exec_env=production parameter
- Unusual file access patterns to env-production folder
Network Indicators:
- HTTP requests to /pages/exec.php with exec_env=production parameter
- Traffic patterns indicating directory traversal attempts
SIEM Query:
source="web_access.log" AND uri="/pages/exec.php" AND query="*exec_env=production*"🔗 References
- https://github.com/Combodo/iTop/commit/3b2da39469f7a4636ed250ed0d33f4efff38be26
- https://github.com/Combodo/iTop/security/advisories/GHSA-g652-q7cc-7hfc
- https://github.com/Combodo/iTop/commit/3b2da39469f7a4636ed250ed0d33f4efff38be26
- https://github.com/Combodo/iTop/security/advisories/GHSA-g652-q7cc-7hfc
