CVE-2024-13136
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code through insecure deserialization in the rememberMeManager function of mysiteforme 1.0. Attackers can exploit this to gain unauthorized access and control over affected systems. Anyone running mysiteforme 1.0 with default configurations is vulnerable.
💻 Affected Systems
- wangl1989 mysiteforme
📦 What is this software?
Mysiteforme by Wangl1989
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.
Likely Case
Unauthorized access to the application, privilege escalation, and potential data exfiltration.
If Mitigated
Limited impact with proper network segmentation and deserialization controls, potentially only denial of service.
🎯 Exploit Status
Exploit details have been publicly disclosed on GitHub, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: No official vendor advisory found
Restart Required: Yes
Instructions:
1. Monitor the GitHub repository for official patches. 2. Consider upgrading to a newer version if available. 3. Apply workarounds immediately while waiting for official fix.
🔧 Temporary Workarounds
Disable rememberMe functionality
allRemove or disable the rememberMeManager configuration in ShiroConfig.java
Edit src/main/java/com/mysiteforme/admin/config/ShiroConfig.java and remove rememberMeManager configuration
Implement deserialization filters
allAdd Java deserialization filters to block malicious payloads
Set JVM options: -Djdk.serialFilter=!*
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted sources only
- Deploy web application firewall (WAF) with deserialization attack detection rules
🔍 How to Verify
Check if Vulnerable:
Check if mysiteforme version 1.0 is installed and if ShiroConfig.java contains the vulnerable rememberMeManager functionCheck Version:
Check application version in pom.xml or application propertiesVerify Fix Applied:
Verify that rememberMeManager is disabled or that deserialization filters are properly configured📡 Detection & Monitoring
Log Indicators:
- Unusual deserialization errors in application logs
- Unexpected rememberMe cookie usage patterns
- Java serialization exceptions
Network Indicators:
- HTTP requests with rememberMe cookies containing unusual patterns
- Traffic to deserialization endpoints from unexpected sources
SIEM Query:
source="application.log" AND ("rememberMe" OR "deserialization" OR "Shiro") AND (error OR exception)