CVE-2024-8777
📋 TL;DR
OMFLOW from The SYSCOM Group has an information leakage vulnerability that allows unauthorized remote attackers to read arbitrary system configurations. If LDAP authentication is enabled, attackers can obtain plaintext credentials. This affects all OMFLOW deployments with vulnerable versions.
💻 Affected Systems
- OMFLOW
📦 What is this software?
Omflow by Syscomgo
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain LDAP service account credentials, potentially compromising the entire directory service and all systems that rely on it.
Likely Case
Attackers gain access to sensitive system configuration data and potentially LDAP credentials, leading to further system compromise.
If Mitigated
Limited exposure of non-critical configuration data without access to authentication systems.
🎯 Exploit Status
The vulnerability allows unauthenticated access to configuration endpoints, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Latest version from vendor
Vendor Advisory: https://www.twcert.org.tw/en/cp-139-8072-928a5-2.html
Restart Required: Yes
Instructions:
1. Contact The SYSCOM Group for the latest patched version
2. Backup current configuration and data
3. Install the updated version following vendor instructions
4. Restart OMFLOW services
5. Verify the fix by testing the vulnerable endpoints
🔧 Temporary Workarounds
Disable LDAP Authentication
allTemporarily disable LDAP authentication to prevent credential exposure while maintaining other functionality
Modify OMFLOW configuration to disable LDAP authentication
Network Access Control
allRestrict access to OMFLOW web interface to trusted IP addresses only
Configure firewall rules to allow only authorized IPs to access OMFLOW ports
🧯 If You Can't Patch
- Immediately disable LDAP authentication in OMFLOW configuration
- Implement strict network segmentation and firewall rules to isolate OMFLOW from untrusted networks
🔍 How to Verify
Check if Vulnerable:
Attempt to access OMFLOW configuration endpoints without authentication; if configuration data is returned, the system is vulnerable.Check Version:
Check OMFLOW version through web interface or configuration filesVerify Fix Applied:
After patching, attempt to access the same configuration endpoints without authentication; access should be denied or return no sensitive data.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access attempts to configuration endpoints
- Unusual LDAP authentication patterns
- Multiple failed authentication attempts followed by configuration access
Network Indicators:
- Unusual HTTP requests to configuration endpoints from untrusted sources
- Traffic patterns indicating information gathering
SIEM Query:
source="omflow" AND (url="*config*" OR url="*setting*") AND user="-"