CVE-2025-43943
📋 TL;DR
Dell Cloud Disaster Recovery versions before 19.20 contain an OS command injection vulnerability that allows high-privileged local attackers to execute arbitrary commands with root privileges. This affects organizations using vulnerable versions of Dell's disaster recovery software. Attackers need local access and administrative credentials to exploit this vulnerability.
💻 Affected Systems
- Dell Cloud Disaster Recovery
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with root-level command execution, allowing data theft, ransomware deployment, or lateral movement across the network.
Likely Case
Privilege escalation leading to unauthorized administrative access, configuration changes, or data exfiltration from the disaster recovery system.
If Mitigated
Limited impact due to network segmentation, strict access controls, and monitoring preventing successful exploitation.
🎯 Exploit Status
Exploitation requires local access and administrative privileges. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 19.20 or later
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000372457/dsa-2025-354-security-update-for-dell-cloud-disaster-recovery-rce-vulnerability
Restart Required: No
Instructions:
1. Access Dell Cloud Disaster Recovery management console. 2. Navigate to software updates section. 3. Download and apply version 19.20 or later. 4. Verify successful update through version check.
🔧 Temporary Workarounds
Restrict Local Access
allLimit physical and remote local access to systems running Dell Cloud Disaster Recovery to authorized administrators only.
Implement Least Privilege
allReview and reduce administrative privileges to only essential personnel who require access to the disaster recovery system.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Dell Cloud Disaster Recovery systems from critical infrastructure
- Enhance monitoring and logging of administrative activities on affected systems
🔍 How to Verify
Check if Vulnerable:
Check the installed version of Dell Cloud Disaster Recovery software through the management interface or system documentation.Check Version:
Check within Dell Cloud Disaster Recovery management interface or consult system documentation for version verificationVerify Fix Applied:
Confirm the software version is 19.20 or later through the management console or version check command.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns
- Administrative privilege escalation attempts
- Unexpected system configuration changes
Network Indicators:
- Unusual outbound connections from disaster recovery system
- Anomalous administrative access patterns
SIEM Query:
source="dell-disaster-recovery" AND (event_type="command_execution" OR privilege="root") AND status="success"