CVE-2025-63911
📋 TL;DR
CVE-2025-63911 is an authenticated command injection vulnerability in Cohesity TranZman Migration Appliance Release 4.0 Build 14614. This allows authenticated attackers to execute arbitrary commands on the underlying operating system. Organizations using this specific build of the migration appliance are affected.
💻 Affected Systems
- Cohesity TranZman Migration Appliance
📦 What is this software?
Tranzman by Cohesity
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise leading to data exfiltration, lateral movement within the network, and potential ransomware deployment.
Likely Case
Unauthorized access to sensitive migration data, credential theft, and installation of persistence mechanisms.
If Mitigated
Limited impact due to network segmentation and strict access controls, potentially only affecting the appliance itself.
🎯 Exploit Status
Proof-of-concept code is publicly available in the referenced GitHub repository.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in available references
Vendor Advisory: Not found in provided references
Instructions:
Check Cohesity security advisories for official patch information. Upgrade to a fixed version when available.
🔧 Temporary Workarounds
Restrict Access
allLimit network access to the appliance to only trusted administrative networks
Use firewall rules to restrict access to appliance management interface
Strengthen Authentication
allImplement multi-factor authentication and strong password policies for appliance access
Configure MFA if supported by appliance
🧯 If You Can't Patch
- Isolate the appliance in a dedicated network segment with strict access controls
- Implement network monitoring and intrusion detection for suspicious command execution patterns
🔍 How to Verify
Check if Vulnerable:
Check appliance version via web interface or CLI. If running Release 4.0 Build 14614, it is vulnerable.Check Version:
Check via appliance web interface or consult Cohesity documentation for CLI version checkVerify Fix Applied:
Verify appliance has been upgraded to a version later than Release 4.0 Build 14614📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful login
Network Indicators:
- Unexpected outbound connections from appliance
- Suspicious payloads in HTTP requests to appliance
SIEM Query:
source="cohesity_appliance" AND (event="command_execution" OR cmdline="*;*" OR cmdline="*|*")