Advisory ID:               SYSS-2018-023
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-2018-17871
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 "Change Configuration Settings" the user can see the
configuration. Passwords are obfuscated by dot operator, but the
server delivers passwords in plaintext. By editing the html source
code in the browser the password fields can be modified to edit fields
and the passwords gets visible.

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Proof of Concept (PoC):

A logged in user can see configured passwords in plaintext. Access the page
"Change Configuration Settings", start the Developer Tools (Internet Explorer
11: key F12). Modify the password type from type='password' to type='edit'
fields and the passwords are visible in plaintext. For example "Key File
Password" (server certificate) and "Database Password" (SQL Server).

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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-016911
    https://releases.verba.com/?v=9.2
[3] SySS Security Advisory SYSS-2018-023
    https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-023.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