CVE-2016-15002
📋 TL;DR
This critical vulnerability in MONyog Ultimate 6.63 allows remote attackers to escalate privileges by manipulating cookie parameters (HasServerEdit/IsAdmin). Attackers can gain administrative access to MONyog instances, potentially compromising monitored MySQL servers. All users running the vulnerable version are affected.
💻 Affected Systems
- MONyog Ultimate
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full administrative takeover of MONyog instance leading to complete compromise of monitored MySQL servers, data exfiltration, and potential lateral movement to other systems.
Likely Case
Unauthorized administrative access to MONyog allowing attackers to modify monitoring configurations, access sensitive database metrics, and potentially execute arbitrary commands.
If Mitigated
Limited impact with proper network segmentation and access controls, though privilege escalation remains possible if the vulnerability is reachable.
🎯 Exploit Status
YouTube video demonstrates exploitation. Attack requires cookie manipulation but appears straightforward based on available information.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Later than 6.63 (exact version not specified in provided references)
Vendor Advisory: Not provided in references
Restart Required: Yes
Instructions:
1. Upgrade MONyog Ultimate to latest version
2. Restart MONyog service
3. Verify cookie handling functionality
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to MONyog web interface to trusted IP addresses only
# Use firewall rules to restrict access
# Example: iptables -A INPUT -p tcp --dport 5555 -s trusted_ip -j ACCEPT
# iptables -A INPUT -p tcp --dport 5555 -j DROP
Cookie Validation Enhancement
allImplement additional cookie validation or use secure cookie flags
# Configure web server to set secure cookie flags
# Example for Apache: Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure
🧯 If You Can't Patch
- Isolate MONyog instance on separate network segment with strict access controls
- Implement web application firewall (WAF) rules to detect and block cookie manipulation attempts
🔍 How to Verify
Check if Vulnerable:
Check MONyog version via web interface or configuration files. Version 6.63 is confirmed vulnerable.Check Version:
# Check MONyog version in web interface or configuration files
# Default location may vary by installationVerify Fix Applied:
Verify upgraded version is later than 6.63 and test cookie manipulation attempts fail.📡 Detection & Monitoring
Log Indicators:
- Unusual cookie parameter modifications
- Multiple failed authentication attempts followed by successful admin access
- Administrative actions from unexpected IP addresses
Network Indicators:
- HTTP requests with modified HasServerEdit or IsAdmin cookie parameters
- Unusual traffic patterns to MONyog web interface
SIEM Query:
source="MONyog" AND (cookie="*HasServerEdit*" OR cookie="*IsAdmin*") AND status=200