CVE-2024-29855
📋 TL;DR
CVE-2024-29855 is a critical authentication bypass vulnerability in Veeam Recovery Orchestrator caused by a hard-coded JWT secret. Attackers can forge valid authentication tokens to gain unauthorized access to the system. All organizations using affected versions of Veeam Recovery Orchestrator are vulnerable.
💻 Affected Systems
- Veeam Recovery Orchestrator
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Veeam Recovery Orchestrator environment, allowing attackers to access, modify, or delete backup and recovery configurations, potentially disrupting disaster recovery capabilities.
Likely Case
Unauthorized access to sensitive backup configurations, recovery plans, and potentially access to backup repositories, leading to data exposure or manipulation.
If Mitigated
Limited impact if system is isolated behind strong network controls and access is restricted, though authentication bypass remains possible.
🎯 Exploit Status
Exploitation requires knowledge of the hard-coded secret, which may be discovered through reverse engineering or information disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Veeam KB4585 for specific fixed version
Vendor Advisory: https://www.veeam.com/kb4585
Restart Required: Yes
Instructions:
1. Download the latest patch from Veeam's official website. 2. Apply the patch following Veeam's installation instructions. 3. Restart the Veeam Recovery Orchestrator service. 4. Verify the fix by checking the version.
🔧 Temporary Workarounds
Network Isolation
allRestrict network access to Veeam Recovery Orchestrator to only trusted administrative networks
Access Control Lists
allImplement strict firewall rules and network segmentation to limit who can reach the Veeam Recovery Orchestrator interface
🧯 If You Can't Patch
- Immediately isolate the Veeam Recovery Orchestrator system from all untrusted networks
- Implement additional authentication layers such as VPN or bastion host requirements for access
🔍 How to Verify
Check if Vulnerable:
Check your Veeam Recovery Orchestrator version against the affected versions listed in Veeam KB4585Check Version:
Check the Veeam Recovery Orchestrator console or administration interface for version informationVerify Fix Applied:
Verify the version has been updated to the patched version specified in Veeam KB4585📡 Detection & Monitoring
Log Indicators:
- Unusual authentication patterns
- Access from unexpected IP addresses
- Failed login attempts followed by successful JWT token usage
Network Indicators:
- Unusual API calls to authentication endpoints
- Traffic patterns indicating token forging attempts
SIEM Query:
source="veeam-recovery-orchestrator" AND (event_type="authentication" AND result="success") AND src_ip NOT IN [trusted_ip_list]