CVE-2024-34982: Lylme Spage RCE Vulnerability

CVE-2024-34982 Overview

An arbitrary file upload vulnerability exists in the /include/file.php component of lylme_spage v1.9.5. This vulnerability allows remote attackers to execute arbitrary code on the target system by uploading a crafted malicious file. The flaw stems from inadequate validation of uploaded file types, enabling threat actors to bypass security controls and achieve remote code execution without authentication.

Critical Impact

Unauthenticated remote attackers can upload malicious files to execute arbitrary code, potentially leading to complete system compromise, data theft, and lateral movement within the network.

Affected Products

• lylme lylme_spage version 1.9.5

Discovery Timeline

• 2024-05-17 - CVE-2024-34982 published to NVD
• 2025-06-17 - Last updated in NVD database

Technical Details for CVE-2024-34982

Vulnerability Analysis

This vulnerability is classified as CWE-434 (Unrestricted Upload of File with Dangerous Type). The vulnerable component /include/file.php in lylme_spage fails to properly validate and restrict file types during the upload process. This allows attackers to upload executable files such as PHP web shells, which can then be accessed directly through the web server to execute arbitrary commands.

The attack can be performed remotely over the network without requiring any authentication or user interaction. Successful exploitation grants attackers full control over the confidentiality, integrity, and availability of the affected system.

Root Cause

The root cause of this vulnerability lies in the insufficient file upload validation within the /include/file.php component. The application fails to implement proper security controls such as:

• Whitelist-based file extension validation
• MIME type verification
• Content inspection of uploaded files
• Secure storage of uploaded files outside the web root

Without these protective measures, attackers can circumvent any basic filtering mechanisms by manipulating file extensions or headers to upload executable content.

Attack Vector

The attack vector is network-based, requiring no prior authentication or privileges. An attacker can exploit this vulnerability by:

1. Identifying the vulnerable file upload endpoint at /include/file.php
2. Crafting a malicious file (e.g., a PHP web shell) that bypasses any rudimentary file type checks
3. Uploading the malicious file to the server
4. Accessing the uploaded file directly via its URL to execute arbitrary commands

The vulnerability allows for unauthenticated remote code execution, making it particularly dangerous for publicly accessible lylme_spage installations. For detailed technical analysis and proof-of-concept information, refer to the GitHub PoC Repository.

Detection Methods for CVE-2024-34982

Indicators of Compromise

• Unexpected PHP files or web shells appearing in upload directories
• HTTP POST requests to /include/file.php with suspicious file attachments
• Web server logs showing access to newly created files with executable extensions in upload paths
• Unusual outbound connections or command execution from the web server process

Detection Strategies

• Monitor web server access logs for POST requests to /include/file.php with unusual payloads
• Implement file integrity monitoring on web-accessible directories to detect unauthorized file creation
• Deploy web application firewalls (WAF) with rules to block malicious file upload attempts
• Use endpoint detection and response (EDR) solutions to identify web shell execution patterns

Monitoring Recommendations

• Enable detailed logging for all file upload operations in lylme_spage
• Configure alerts for new executable files created in web-accessible directories
• Monitor for process spawning from the web server (e.g., www-data or apache executing shell commands)
• Implement network traffic analysis to detect command-and-control communications from compromised servers

How to Mitigate CVE-2024-34982

Immediate Actions Required

• Restrict access to /include/file.php at the web server level until a patch is applied
• Review upload directories for any suspicious or unauthorized files and remove them
• Consider taking vulnerable lylme_spage v1.9.5 instances offline if they are publicly accessible
• Implement network segmentation to limit the impact of potential compromise

Patch Information

No official vendor patch information is currently available in the CVE data. Organizations using lylme_spage v1.9.5 should monitor the vendor's official channels for security updates. In the absence of an official patch, implementing the workarounds below is strongly recommended.

Workarounds

• Disable or restrict access to the vulnerable /include/file.php component via web server configuration
• Implement strict file upload validation at the application or web server level, allowing only specific safe file types
• Store uploaded files outside the web root to prevent direct execution
• Deploy a web application firewall (WAF) to block malicious file upload attempts

# Apache configuration to restrict access to vulnerable component
<Location "/include/file.php">
    Order deny,allow
    Deny from all
    # Allow only trusted IPs if file upload is required
    # Allow from 192.168.1.0/24
</Location>