CVE-2024-36675
📋 TL;DR
LyLme_spage v1.9.5 contains a Server-Side Request Forgery (SSRF) vulnerability in the get_head function that allows attackers to make arbitrary HTTP requests from the vulnerable server. This can lead to internal network scanning, service enumeration, and potential data exfiltration. Any system running LyLme_spage v1.9.5 with the vulnerable function exposed is affected.
💻 Affected Systems
- LyLme_spage
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could pivot to internal systems, access cloud metadata services, perform port scanning of internal networks, and potentially achieve remote code execution through chained attacks.
Likely Case
Internal network reconnaissance, access to internal HTTP services, and potential data leakage from internal APIs or services.
If Mitigated
Limited to external resource consumption and potential denial of service if proper network segmentation and egress filtering are implemented.
🎯 Exploit Status
SSRF vulnerabilities are commonly exploited and tooling exists for automated exploitation. The GitHub issue shows proof of concept details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://github.com/LyLme/lylme_spage/issues/92
Restart Required: No
Instructions:
1. Monitor the GitHub repository for patches. 2. Consider disabling or removing the vulnerable function if possible. 3. Implement network-level controls as workarounds.
🔧 Temporary Workarounds
Network Egress Filtering
linuxRestrict outbound HTTP/HTTPS traffic from the application server to only necessary external services
iptables -A OUTPUT -p tcp --dport 80 -j DROP
iptables -A OUTPUT -p tcp --dport 443 -j DROP
Application Firewall Rules
allImplement WAF rules to block SSRF patterns in requests
# WAF configuration depends on specific solution (ModSecurity, Cloudflare, etc.)
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the vulnerable server from internal resources
- Deploy a reverse proxy with request validation to filter malicious SSRF attempts
🔍 How to Verify
Check if Vulnerable:
Test if the get_head function accepts arbitrary URLs by attempting to make requests to internal services or external domains you controlCheck Version:
Check the application version in the admin panel or configuration filesVerify Fix Applied:
Verify that URL validation is implemented and the function rejects requests to internal IP ranges and restricted domains📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from the application server
- Requests to internal IP addresses from the application
- Multiple failed connection attempts to various ports
Network Indicators:
- HTTP traffic from application server to unexpected internal services
- Port scanning patterns originating from the application server
SIEM Query:
source="application_logs" AND (url CONTAINS "127.0.0.1" OR url CONTAINS "localhost" OR url CONTAINS "169.254.169.254" OR url CONTAINS "10." OR url CONTAINS "192.168." OR url CONTAINS "172.16.")