CVE-2025-30103
📋 TL;DR
Dell SmartFabric OS10 Software versions before 10.6.0.5 have a file permission vulnerability that allows low-privileged local users to access files or directories they shouldn't. This affects organizations using Dell networking equipment with OS10 software. Attackers could potentially read sensitive configuration files or system information.
💻 Affected Systems
- Dell SmartFabric OS10 Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains access to sensitive configuration files, credentials, or system files, potentially enabling privilege escalation, network configuration manipulation, or lateral movement.
Likely Case
Local user accesses restricted files containing network configuration details, system logs, or other sensitive operational data.
If Mitigated
Minimal impact with proper access controls, monitoring, and network segmentation limiting attacker movement.
🎯 Exploit Status
Requires low-privileged local access. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.6.0.5 or later
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000346195/dsa-2025-259-security-update-for-dell-networking-os10-vulnerabilities
Restart Required: Yes
Instructions:
1. Download OS10 version 10.6.0.5 or later from Dell support. 2. Backup current configuration. 3. Apply the update following Dell's upgrade procedures. 4. Reboot the switch. 5. Verify the new version is running.
🔧 Temporary Workarounds
Restrict Local Access
allLimit physical and logical access to switch management interfaces to authorized personnel only.
Implement Access Controls
allUse RBAC to minimize users with local access and implement least privilege principles.
🧯 If You Can't Patch
- Implement strict access controls to limit who has local access to switches
- Monitor switch access logs for unauthorized local access attempts
🔍 How to Verify
Check if Vulnerable:
Check OS10 version using 'show version' command. If version is below 10.6.0.5, system is vulnerable.Check Version:
show versionVerify Fix Applied:
After patching, run 'show version' to confirm version is 10.6.0.5 or higher.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns
- Multiple failed access attempts to restricted directories
- Unauthorized user accessing switch management interface
Network Indicators:
- Unusual management interface access from unexpected sources
SIEM Query:
source="dell_os10" AND (event_type="file_access" OR event_type="auth_failure")