Description
An issue was discovered in URVE Build 24.03.2020. By using the _internal/pc/vpro.php?mac=0&ip=0&operation=0&usr=0&pass=0%3bpowershell+-c+" substring, it is possible to execute a Powershell command and redirect its output to a file under the web root.
References
- https://urve.co.uk/system-rezerwacji-sal
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-040.txt
- 20201225 SYSS-2020-040 Urve - Missing Authentication for Critical Function (CWE-306) mailing-list
- http://packetstormsecurity.com/files/160722/URVE-Software-Build-24.03.2020-Authentication-Bypass-Remote-Code-Execution.html