CVE-2021-25162
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on affected Aruba Instant Access Point devices without authentication. It affects multiple versions of Aruba Instant IAP software across several major release branches. Attackers can gain full control of vulnerable devices.
💻 Affected Systems
- Aruba Instant Access Point (IAP)
📦 What is this software?
Instant by Arubanetworks
Instant by Arubanetworks
Instant by Arubanetworks
Instant by Arubanetworks
Instant by Arubanetworks
Instant by Arubanetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the access point allowing attackers to pivot to internal networks, intercept traffic, deploy malware, or create persistent backdoors.
Likely Case
Attackers gain shell access to the access point, enabling them to modify configurations, disrupt network services, or use the device as a foothold for further attacks.
If Mitigated
With proper network segmentation and access controls, impact is limited to the compromised device itself, though it could still be used for traffic interception.
🎯 Exploit Status
Public exploit code available on Packet Storm Security. Exploitation requires network access to the device but no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Aruba Instant 6.4.4.8-4.2.4.18+, 6.5.4.19+, 8.3.0.15+, 8.5.0.12+, 8.6.0.8+, 8.7.1.2+
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt
Restart Required: Yes
Instructions:
1. Download appropriate firmware from Aruba support portal. 2. Upload firmware to IAP via web interface or CLI. 3. Apply firmware update. 4. Reboot device to complete installation.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to IAP management interfaces to trusted networks only
Access Control Lists
allImplement firewall rules to block external access to IAP management ports
🧯 If You Can't Patch
- Isolate affected IAPs on separate VLAN with strict access controls
- Monitor network traffic to/from IAPs for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check IAP firmware version via web interface (System > About) or CLI (show version)Check Version:
show versionVerify Fix Applied:
Confirm firmware version is patched: 6.4.4.8-4.2.4.18+, 6.5.4.19+, 8.3.0.15+, 8.5.0.12+, 8.6.0.8+, or 8.7.1.2+📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Unexpected configuration changes
- Failed authentication attempts followed by successful access
Network Indicators:
- Unusual outbound connections from IAP
- Traffic spikes from IAP management interface
- Unexpected SSH/Telnet connections to IAP
SIEM Query:
source="aruba-iap" AND (event_type="command_execution" OR event_type="configuration_change")🔗 References
- http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdf
- https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt
- http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdf
- https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt
