Vulnerability CVE-2020-29552
Published: 2020-12-23

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
URVE Software Build 24.03.2020 Authentication Bypass / Remote Code Execution
Erik Steltzner
30.12.2020

Type:

CWE-78

 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') )

CVSS2 => (AV:N/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
10/10
10/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
URVE -> URVE 

 References:
http://packetstormsecurity.com/files/160722/URVE-Software-Build-24.03.2020-Authentication-Bypass-Remote-Code-Execution.html
http://seclists.org/fulldisclosure/2020/Dec/47
https://urve.co.uk/system-rezerwacji-sal
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-040.txt
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