CVE-2025-55524
📋 TL;DR
Agent-Zero v0.8.* has insecure permissions that allow attackers to trigger arbitrary system resets. This vulnerability affects all systems running vulnerable versions of Agent-Zero, potentially causing service disruption and data loss.
💻 Affected Systems
- Agent-Zero
📦 What is this software?
Agent Zero by Agent Zero
⚠️ Risk & Real-World Impact
Worst Case
Complete system downtime, data corruption, and potential privilege escalation if restart process has elevated permissions.
Likely Case
Service disruption, temporary unavailability of Agent-Zero functionality, and potential data loss from interrupted operations.
If Mitigated
Minimal impact if proper access controls and monitoring are implemented to prevent unauthorized restart attempts.
🎯 Exploit Status
Based on CWE-732 (Incorrect Permission Assignment for Critical Resource) and description mentioning unspecified vectors, exploitation likely requires minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Monitor official Agent-Zero repository for security updates
2. Apply patch when available
3. Restart Agent-Zero service after patching
🔧 Temporary Workarounds
Restrict Access to Restart Endpoint
linuxImplement network-level or application-level access controls to restrict who can access the restart functionality.
# Example: Use firewall rules to restrict access
# iptables -A INPUT -p tcp --dport [AGENT_PORT] -s [TRUSTED_IPS] -j ACCEPT
# iptables -A INPUT -p tcp --dport [AGENT_PORT] -j DROP
Implement Authentication Requirements
allAdd authentication checks to the restart endpoint if not already present.
# Modify restart.py to require authentication
# Example: Add @require_auth decorator or similar
🧯 If You Can't Patch
- Isolate Agent-Zero instances in separate network segments with strict access controls
- Implement comprehensive monitoring and alerting for unauthorized restart attempts
🔍 How to Verify
Check if Vulnerable:
Check Agent-Zero version and verify if running v0.8.* series. Review restart.py permissions and access controls.Check Version:
agent-zero --version or check package metadataVerify Fix Applied:
Test restart functionality with unauthorized credentials/access to ensure proper authentication and authorization checks are in place.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to restart endpoint
- Unexpected system restart events
- Failed authentication attempts on restart functionality
Network Indicators:
- Unusual traffic patterns to restart API endpoint
- Requests to restart endpoint from unauthorized sources
SIEM Query:
source="agent-zero" AND (event="restart" OR endpoint="/restart") AND result="success" AND user NOT IN [authorized_users]