CVE-2023-20887
📋 TL;DR
CVE-2023-20887 is a command injection vulnerability in VMware Aria Operations for Networks that allows remote code execution. Attackers with network access can inject malicious commands into the application, potentially gaining full control of affected systems. Organizations running vulnerable versions of VMware Aria Operations for Networks are affected.
💻 Affected Systems
- VMware Aria Operations for Networks
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining root/administrator privileges, data exfiltration, lateral movement to other systems, and persistent backdoor installation.
Likely Case
Unauthorized command execution leading to service disruption, data theft, and potential ransomware deployment.
If Mitigated
Limited impact due to network segmentation, proper access controls, and monitoring preventing successful exploitation.
🎯 Exploit Status
Public exploit code is available and has been observed in the wild. CISA has added this to their Known Exploited Vulnerabilities catalog.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.10.0 or later
Vendor Advisory: https://www.vmware.com/security/advisories/VMSA-2023-0012.html
Restart Required: Yes
Instructions:
1. Download VMware Aria Operations for Networks version 6.10.0 or later from VMware portal. 2. Backup current configuration. 3. Deploy the updated version following VMware upgrade procedures. 4. Verify successful upgrade and functionality.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to VMware Aria Operations for Networks management interface to trusted IP addresses only.
Firewall Rules
allImplement strict firewall rules to limit inbound connections to the appliance.
🧯 If You Can't Patch
- Isolate the vulnerable system from internet and untrusted networks
- Implement strict network access controls and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check the version of VMware Aria Operations for Networks via the web interface or SSH to the appliance and check version.Check Version:
ssh admin@<appliance-ip> 'cat /etc/version' or check via web interface under Administration > System > AboutVerify Fix Applied:
Verify the version is 6.10.0 or later and test that the previously vulnerable endpoints no longer accept command injection.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Suspicious process creation
- Unexpected network connections from the appliance
Network Indicators:
- Unusual traffic patterns to/from the appliance
- Suspicious payloads in HTTP requests to management interface
SIEM Query:
source="vmware-aria" AND (process="*sh" OR cmd="*sh" OR command="*sh") AND user!="admin"🔗 References
- http://packetstormsecurity.com/files/173761/VMWare-Aria-Operations-For-Networks-Remote-Command-Execution.html
- https://www.vmware.com/security/advisories/VMSA-2023-0012.html
- http://packetstormsecurity.com/files/173761/VMWare-Aria-Operations-For-Networks-Remote-Command-Execution.html
- https://www.vmware.com/security/advisories/VMSA-2023-0012.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20887
