CVE-2024-48830
📋 TL;DR
This CVE describes a command injection vulnerability in Dell SmartFabric OS10 Software that allows low-privileged local attackers to execute arbitrary commands on affected switches. Organizations running vulnerable versions of Dell OS10 networking software are affected. The vulnerability could lead to complete system compromise.
💻 Affected Systems
- Dell SmartFabric OS10 Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover, lateral movement to other network devices, data exfiltration, and persistent backdoor installation.
Likely Case
Local privilege escalation, configuration manipulation, network disruption, and credential harvesting from the compromised switch.
If Mitigated
Limited impact due to network segmentation, strict access controls, and monitoring preventing successful exploitation.
🎯 Exploit Status
Requires low-privileged local access. No public exploit code available as of analysis. Attackers need knowledge of OS10 command structure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to versions specified in Dell advisories DSA-2025-068, DSA-2025-069, DSA-2025-070, DSA-2025-079
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000289970/dsa-2025-070-security-update-for-dell-networking-os10-vulnerabilities
Restart Required: No
Instructions:
1. Review Dell advisories for specific fixed versions. 2. Download appropriate firmware from Dell Support. 3. Backup current configuration. 4. Apply firmware update following Dell's upgrade procedures. 5. Verify successful update and restore configuration if needed.
🔧 Temporary Workarounds
Restrict Local Access
allLimit local console and SSH access to only authorized administrators using strict access controls.
configure terminal
username admin privilege 15 password <secure_password>
line console 0
login local
line vty 0 15
login local
transport input ssh
access-class <acl_name> in
Implement Command Authorization
allUse TACACS+ or RADIUS with command authorization to restrict what commands low-privileged users can execute.
aaa new-model
aaa authentication login default group tacacs+ local
aaa authorization exec default group tacacs+ local
aaa authorization commands 1 default group tacacs+ local
tacacs server <server_name>
address ipv4 <server_ip>
key <shared_key>
🧯 If You Can't Patch
- Implement strict network segmentation to isolate OS10 switches from general user networks.
- Deploy host-based intrusion detection on OS10 switches and monitor for unusual command execution patterns.
🔍 How to Verify
Check if Vulnerable:
Check OS10 version using 'show version' command and compare against affected versions: 10.5.4.x, 10.5.5.x, 10.5.6.x, 10.6.0.xCheck Version:
show version | include VersionVerify Fix Applied:
After patching, verify version is no longer in vulnerable range using 'show version' and check Dell advisory for specific fixed version numbers.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns from low-privileged accounts
- Failed privilege escalation attempts
- Unexpected configuration changes
- Suspicious command strings in syslog
Network Indicators:
- Unusual SSH connections to switch management interfaces
- Anomalous traffic patterns from switch management IPs
SIEM Query:
source="dell_os10" AND (event_type="command_execution" AND user_privilege="low") OR (event_type="configuration_change" AND user_privilege="low")🔗 References
- https://www.dell.com/support/kbdoc/en-us/000289970/dsa-2025-070-security-update-for-dell-networking-os10-vulnerabilities
- https://www.dell.com/support/kbdoc/en-us/000293638/dsa-2025-069-security-update-for-dell-networking-os10-vulnerabilities
- https://www.dell.com/support/kbdoc/en-us/000294091/dsa-2025-079-security-update-for-dell-networking-os10-vulnerabilities
- https://www.dell.com/support/kbdoc/en-us/000295014/dsa-2025-068-security-update-for-dell-networking-os10-vulnerabilities
