Array Networks vAPV and vxAG Default Credential Privilege Escalation
Vulnerability Description
Array Networks vAPV (version 8.3.2.17) and vxAG (version 9.2.0.34) appliances are affected by a privilege escalation vulnerability caused by a combination of hardcoded SSH credentials (or SSH private key) and insecure permissions on a startup script. The devices ship with a default SSH login or a hardcoded DSA private key, allowing an attacker to authenticate remotely with limited privileges. Once authenticated, an attacker can overwrite the world-writable /ca/bin/monitor.sh script with arbitrary commands. Since this script is executed with elevated privileges through the backend binary, enabling the debug monitor via backend -c "debug monitor on" triggers execution of the attacker's payload as root. This allows full system compromise.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- xistence
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ssh/array_vxag_vapv_privkey_privesc.rb
- https://packetstorm.news/files/id/125761
- https://www.exploit-db.com/exploits/32440
- https://www.vulncheck.com/advisories/array-networks-vapv-vxag-default-credential-privilege-escalation
Affected Vendor
Array Networks
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