CVE-2024-48831
📋 TL;DR
Dell SmartFabric OS10 Software versions 10.5.6.x contain a hard-coded password vulnerability. An unauthenticated attacker with local access could exploit this to gain unauthorized access to affected networking devices. This affects organizations using Dell SmartFabric OS10 Software for network switching.
💻 Affected Systems
- Dell SmartFabric OS10 Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains full administrative control over the network switch, allowing them to reconfigure network traffic, intercept data, or disrupt network operations.
Likely Case
An attacker with physical or network access to the management interface gains unauthorized administrative access to the switch.
If Mitigated
With proper network segmentation and access controls, the impact is limited to the local management network segment.
🎯 Exploit Status
Exploitation requires local access to the device or its management network. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to version 10.5.7.0 or later as specified in DSA-2025-068
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000295014/dsa-2025-068-security-update-for-dell-networking-os10-vulnerabilities
Restart Required: No
Instructions:
1. Download the updated OS10 software from Dell Support. 2. Upload the new image to the switch. 3. Set the new image as the boot image. 4. Save the configuration. 5. Reload the switch to apply the update.
🔧 Temporary Workarounds
Restrict Management Access
allLimit access to the switch management interfaces to trusted networks only using ACLs.
configure terminal
access-list ip MANAGEMENT-ACL permit ip 192.168.1.0/24 any
interface management 1/1
ip access-group MANAGEMENT-ACL in
Disable Unused Management Interfaces
allDisable any management interfaces that are not required for operations.
configure terminal
interface management 1/1
shutdown
🧯 If You Can't Patch
- Implement strict network segmentation to isolate management interfaces from untrusted networks.
- Monitor authentication logs for unauthorized access attempts and implement intrusion detection on management networks.
🔍 How to Verify
Check if Vulnerable:
Check the OS10 software version using 'show version' command. If version starts with 10.5.6, the system is vulnerable.Check Version:
show versionVerify Fix Applied:
After patching, verify the version shows 10.5.7.0 or later using 'show version' command.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful logins from unexpected sources
- Configuration changes from unauthorized users
Network Indicators:
- Unexpected management protocol traffic (SSH/Telnet/HTTP) to switch management interfaces
- Traffic patterns indicating network reconfiguration
SIEM Query:
source="dell_os10" (event_type="authentication" AND result="success") AND NOT user IN ["admin", "operator"]