CVE-2024-48236
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on systems running ofcms 1.1.2 by exploiting improper input validation in the FileOutputStream function. Attackers can achieve remote code execution (RCE) by manipulating file write operations. All deployments using the vulnerable version are affected.
💻 Affected Systems
- ofcms
📦 What is this software?
Ofcms by Ofcms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, install malware, steal data, or pivot to other systems.
Likely Case
Remote code execution leading to web shell installation, data exfiltration, or service disruption.
If Mitigated
Limited impact with proper network segmentation, minimal privileges, and input validation controls in place.
🎯 Exploit Status
The vulnerability is well-documented in the public issue tracker with technical details that facilitate exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://gitee.com/oufu/ofcms/issues/IASIBT
Restart Required: Yes
Instructions:
1. Monitor the ofcms repository for security updates. 2. Apply any available patches immediately. 3. Restart the ofcms service after patching.
🔧 Temporary Workarounds
Disable Admin Interface
allTemporarily disable the admin interface to prevent exploitation of the vulnerable component.
Modify configuration to disable admin access or block admin URLs at the web server/load balancer
Input Validation Filter
allImplement strict input validation for file operations to block malicious payloads.
Add input validation filters in web.xml or application security configuration
🧯 If You Can't Patch
- Implement strict network segmentation to isolate ofcms instances from critical systems
- Deploy web application firewall (WAF) rules to block exploitation attempts targeting file write operations
🔍 How to Verify
Check if Vulnerable:
Check the ofcms version in the application configuration or by examining the deployed JAR/WAR files for version 1.1.2.Check Version:
Check application.properties, pom.xml, or manifest files for version informationVerify Fix Applied:
Verify that the version has been updated beyond 1.1.2 and test file upload/write functionality with malicious inputs.📡 Detection & Monitoring
Log Indicators:
- Unusual file write operations in admin logs
- Java exceptions related to FileOutputStream or file path manipulation
- Suspicious POST requests to admin file upload endpoints
Network Indicators:
- HTTP requests with file path traversal patterns to admin URLs
- Unexpected outbound connections from ofcms server
SIEM Query:
source="ofcms" AND (url="*admin*" AND (method="POST" AND uri="*file*" OR "*upload*"))