CVE-2025-25827
📋 TL;DR
This Server-Side Request Forgery vulnerability in Emlog Pro allows attackers to make the vulnerable server send requests to internal network resources. Attackers can scan local ports and potentially access internal services that shouldn't be exposed. Users running Emlog Pro v2.5.4 with the vulnerable sort.php component are affected.
💻 Affected Systems
- Emlog Pro
📦 What is this software?
Emlog by Emlog
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access sensitive internal services, exfiltrate data from internal systems, or pivot to attack other internal network resources.
Likely Case
Attackers scanning internal ports to discover vulnerable services, potentially leading to further exploitation of internal systems.
If Mitigated
Limited to port scanning and information gathering about internal network structure without data exfiltration.
🎯 Exploit Status
Public proof-of-concept available on GitHub, exploitation requires sending crafted URL to sort.php.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.emlog.net/
Restart Required: No
Instructions:
Check vendor website for security updates. If no patch available, apply workarounds or consider alternative software.
🔧 Temporary Workarounds
Disable sort.php component
linuxRemove or restrict access to the vulnerable sort.php file
mv /path/to/emlog/sort.php /path/to/emlog/sort.php.disabled
Web server access restriction
allConfigure web server to block access to sort.php
# Apache: <Location "/sort.php"> Require all denied </Location>
# Nginx: location ~ /sort.php { deny all; }
🧯 If You Can't Patch
- Implement network segmentation to isolate Emlog Pro from internal services
- Deploy web application firewall with SSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Test if sort.php accepts external URLs by sending a request with a crafted URL parameterCheck Version:
Check Emlog Pro admin panel or version fileVerify Fix Applied:
Verify sort.php is inaccessible or properly validates URL inputs📡 Detection & Monitoring
Log Indicators:
- Unusual requests to sort.php with URL parameters
- Outbound connections to internal IPs from web server
Network Indicators:
- Web server making unexpected connections to internal services
- Port scanning patterns from web server
SIEM Query:
source="web_logs" AND uri="/sort.php" AND (url_parameter CONTAINS "http://" OR url_parameter CONTAINS "://")