CVE-2025-14909
📋 TL;DR
This vulnerability in JeecgBoot allows attackers to remotely manipulate user sessions through the SysUserOnlineController function. It affects JeecgBoot versions up to 3.9.0, potentially enabling unauthorized session management. Organizations using vulnerable versions of this Java-based rapid development framework are at risk.
💻 Affected Systems
- JeecgBoot
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could hijack administrative sessions, gain unauthorized access to sensitive systems, and potentially compromise the entire application.
Likely Case
Attackers could manipulate user sessions to gain unauthorized access to user accounts, potentially accessing sensitive data or performing unauthorized actions.
If Mitigated
With proper session management controls and network segmentation, impact would be limited to isolated application components.
🎯 Exploit Status
The exploit has been made publicly available and requires some level of access to the application.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patched in commit b686f9fbd1917edffe5922c6362c817a9361cfbd
Vendor Advisory: https://github.com/jeecgboot/JeecgBoot/issues/9195
Restart Required: Yes
Instructions:
1. Update JeecgBoot to version after commit b686f9fbd1917edffe5922c6362c817a9361cfbd. 2. Rebuild and redeploy the application. 3. Restart the application server.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to the JeecgBoot application to trusted IP addresses only.
iptables -A INPUT -p tcp --dport <app_port> -s <trusted_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport <app_port> -j DROP
🧯 If You Can't Patch
- Implement strict session management controls and monitor for unusual session activity.
- Deploy a web application firewall (WAF) with rules to detect and block session manipulation attempts.
🔍 How to Verify
Check if Vulnerable:
Check if JeecgBoot version is 3.9.0 or earlier by examining application version files or build metadata.Check Version:
grep -r "version\|jeecg" pom.xml or check application.properties for version informationVerify Fix Applied:
Verify that the commit hash includes b686f9fbd1917edffe5922c6362c817a9361cfbd or later in the git history.📡 Detection & Monitoring
Log Indicators:
- Unusual session creation/modification patterns
- Multiple session requests from single IP
- Unauthorized access to SysUserOnlineController endpoints
Network Indicators:
- HTTP requests to /sys/userOnline endpoints with suspicious parameters
- Unusual session ID manipulation in requests
SIEM Query:
source="application.log" AND ("SysUserOnlineController" OR "session manipulation") AND status=200