Description
Beckhoff IPC Diagnostics before 1.8 does not properly restrict access to functions in /config, which allows remote attackers to cause a denial of service (reboot or shutdown), create arbitrary users, or possibly have unspecified other impact via a crafted request, as demonstrated by a beckhoff.com:service:cxconfig:1#Write SOAP action to /upnpisapi.
References
- http://packetstormsecurity.com/files/132168/Beckhoff-IPC-Diagnositcs-Authentication-Bypass.html
- http://ftp.beckhoff.com/download/document/IndustPC/Advisory-2015-001.pdf
- http://packetstormsecurity.com/files/134071/Beckoff-CX9020-CPU-Model-Remote-Code-Execution.html
- 20150604 [CVE-2015-4051]: Beckhoff IPC diagnostics < 1.8 : Authentication bypass mailing-list
- 75042 vdb-entry
- http://www.thesecurityfactory.be/permalink/beckhoff-authentication-bypass.html