Collaboration Compliance And Quality Management Platform 9.1.1.5482 Improper Access Control

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Advisory ID: SYSS-2018-024  
Product: Collaboration Compliance and Quality Management Platform  
Manufacturer: Verint Verba  
Affected Version(s): <= 9.1.1.5482  
Tested Version(s): 9.1.1.5482  
Vulnerability Type: Improper Access Control (CWE-284)  
Risk Level: Medium  
Solution Status: Fixed  
Manufacturer Notification: 2018-08-29  
Solution Date: 2018-08-31  
Public Disclosure: 2018-10-02  
CVE Reference: CVE-2018-17872  
Author of Advisory: Tobias Huppertz, SySS GmbH  
  
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Overview:  
  
Collaboration Compliance and Quality Management Platform is a product  
to record and play calls with VoIP-telephons including Skype, messages  
and video. The permission management works with different roles and  
groups. So member can just play their own calls and investigators can  
also play calls of other users.  
  
The manufacturer describes the product as follows (see [1]):  
  
"Verint Essential Workforce Optimization offers advanced automation to  
get the most from your workforce. Our software and services can  
enhance the efficiency of your employees and processes, and enable you  
to share workforce intelligence in real-time across your  
business. Mid-market contact centers, back-office operations, branch  
operations and financial trading rooms can rely on Verint Essential  
Workforce Optimization to capture and store interactions, heighten  
quality, ensure compliance and help manage the availability and  
performance of employees in targeted areas of their businesses."  
  
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Vulnerability Details:  
  
At the page "Group Configuration - Assign Users" a list of users are  
shown which are in this group. Every user can also be a member of the  
groups Member, Supervisor, Investigator, Administrator and Manager,  
but Investigator is diabled. By modifing the html source code with the  
developer tools (Internet Explorer 11: key F12) it is possible to  
enable this checkbox, set it to true and save the new  
configuration. At this moment the user gets also a new tab named  
workflow to see four-eyes-requests.  
  
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Proof of Concept (PoC):  
  
Go to "Group Configuration - Assign Users", enable the Investigator  
checkbox with the developer tools, activate the checkbox and press  
save.  
  
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Solution:  
  
Install the new version, which was published by the vendor [2].  
  
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Disclosure Timeline:  
  
2018-08-16: Vulnerability discovered  
2018-08-30: Vulnerability reported to manufacturer  
2018-08-30: Vulnerability confirmed by manufacturer  
2018-08-31: Update released by manufacturer  
2018-10-01: CVE number assigned  
2018-10-02: Public disclosure of vulnerability  
  
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References:  
  
[1] Collaboration Compliance and Quality Management Platform  
https://www.verba.com/solutions/compliance-recording-collaboration/#Skype-for-Business  
[2] Verba 9.2 Release Notes (build 9.2.2.5549) - RI-016912  
https://releases.verba.com/?v=9.2  
[3] SySS Security Advisory SYSS-2018-024  
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-024.txt  
[4] SySS Responsible Disclosure Policy  
https://www.syss.de/en/news/responsible-disclosure-policy/  
  
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Credits:  
  
This security vulnerability was found by Tobias Huppertz of SySS GmbH.  
  
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Disclaimer:  
  
The information provided in this security advisory is provided "as is"  
and without warranty of any kind. Details of this security advisory  
may be updated in order to provide as accurate information as  
possible. The latest version of this security advisory is available on  
the SySS Web site.  
  
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Copyright:  
  
Creative Commons - Attribution (by) - Version 3.0  
URL: http://creativecommons.org/licenses/by/3.0/deed.en  
  
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