CVE-2021-28293
📋 TL;DR
CVE-2021-28293 is an unauthenticated account takeover vulnerability in Seceon aiSIEM's password reset functionality. Attackers can set arbitrary passwords for any user without authentication, potentially compromising the entire security monitoring system. Organizations using affected versions of Seceon aiSIEM are vulnerable.
💻 Affected Systems
- Seceon aiSIEM
📦 What is this software?
Aisiem by Seceon
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the SIEM system, allowing attackers to disable security monitoring, access sensitive log data, and pivot to other systems in the network.
Likely Case
Unauthorized access to the SIEM console, manipulation of security alerts, and potential data exfiltration of security logs.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to the vulnerable interface.
🎯 Exploit Status
Exploitation requires network access to the vulnerable interface but no authentication or special privileges.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.3.2 (build 585) or later
Vendor Advisory: https://www.seceon.com/advanced-siem-aisiem
Restart Required: Yes
Instructions:
1. Upgrade to Seceon aiSIEM version 6.3.2 (build 585) or later. 2. Follow vendor upgrade procedures. 3. Restart the aiSIEM services after upgrade.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to the aiSIEM web interface to trusted IP addresses only.
iptables -A INPUT -p tcp --dport [aiSIEM_PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [aiSIEM_PORT] -j DROP
Disable Password Reset Feature
allTemporarily disable the Forgot Password functionality if possible in the configuration.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the aiSIEM system from untrusted networks
- Enable multi-factor authentication for all administrative accounts if supported
🔍 How to Verify
Check if Vulnerable:
Check the aiSIEM version in the web interface or via system logs. If version is below 6.3.2 (build 585), the system is vulnerable.Check Version:
Check the web interface login page or admin console for version informationVerify Fix Applied:
Verify the version is 6.3.2 (build 585) or higher and test the password reset functionality to ensure it requires proper authentication.📡 Detection & Monitoring
Log Indicators:
- Multiple failed password reset attempts from single IP
- Successful password reset for administrative accounts from unusual IPs
- Account lockout events following password changes
Network Indicators:
- Unusual HTTP POST requests to password reset endpoints
- Traffic to aiSIEM web interface from unexpected sources
SIEM Query:
source="aiSIEM_logs" AND (event_type="password_reset" OR event_type="account_takeover")