CVE-2023-40062
📋 TL;DR
This vulnerability in SolarWinds Platform allows a low-privileged authenticated user to execute arbitrary code with SYSTEM privileges due to incomplete input validation. It affects SolarWinds Hybrid Cloud Observability installations. Attackers could gain complete control of affected systems.
💻 Affected Systems
- SolarWinds Hybrid Cloud Observability
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining SYSTEM privileges, enabling lateral movement, data exfiltration, and persistent backdoor installation across the network.
Likely Case
Privilege escalation from low-privileged user to SYSTEM, allowing installation of malware, credential harvesting, and further network exploitation.
If Mitigated
Limited impact with proper network segmentation, least privilege access, and monitoring preventing successful exploitation or containing damage.
🎯 Exploit Status
Exploitation requires authenticated access but is considered low complexity once access is obtained. No public exploit code is available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2023.4 or later
Vendor Advisory: https://www.solarwinds.com/trust-center/security-advisories/CVE-2023-40062
Restart Required: Yes
Instructions:
1. Download SolarWinds Hybrid Cloud Observability 2023.4 or later from the SolarWinds Customer Portal. 2. Backup current configuration and database. 3. Run the installer with administrative privileges. 4. Follow upgrade wizard instructions. 5. Restart services as prompted.
🔧 Temporary Workarounds
Restrict User Access
allLimit low-privileged user accounts to only essential personnel and implement strict access controls.
Network Segmentation
allIsolate SolarWinds servers from critical network segments and implement firewall rules to restrict access.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate SolarWinds servers from critical assets
- Enforce least privilege access controls and monitor all user activity on SolarWinds systems
🔍 How to Verify
Check if Vulnerable:
Check SolarWinds version in web interface under Settings > All Settings > Product Information, or check installed version in Windows Programs and Features.Check Version:
Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -like '*SolarWinds*'} | Select-Object Name, VersionVerify Fix Applied:
Verify version is 2023.4 or later and check that all SolarWinds services are running properly after update.📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from SolarWinds services
- Privilege escalation attempts in Windows Event Logs
- Unexpected command execution in SolarWinds logs
Network Indicators:
- Unusual outbound connections from SolarWinds servers
- Suspicious PowerShell or command execution traffic
SIEM Query:
source="windows" EventCode=4688 ProcessName="*SolarWinds*" OR ParentProcessName="*SolarWinds*" | stats count by host, ProcessName, CommandLine🔗 References
- https://documentation.solarwinds.com/en/success_center/hco/content/release_notes/hco_2023-4_release_notes.htm
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2023-40062
- https://documentation.solarwinds.com/en/success_center/hco/content/release_notes/hco_2023-4_release_notes.htm
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2023-40062
