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ESB-2015.2576 - [Win] EMC SourceOne Email Supervisor: Multiple vulnerabilities

Date: 13 October 2015

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.2576
        ESA-2015-153 EMC SourceOne Email Supervisor Security Update
                   for Multiple Security Vulnerabilities
                              13 October 2015

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:          EMC SourceOne Email Supervisor
Publisher:        EMC
Operating System: Windows
Impact/Access:    Cross-site Scripting -- Remote with User Interaction
                  Unauthorised Access  -- Remote/Unauthenticated      
                  Reduced Security     -- Remote/Unauthenticated      
Resolution:       Patch/Upgrade
CVE Names:        CVE-2015-6846 CVE-2015-6845 CVE-2015-6844
                  CVE-2015-6843  

- --------------------------BEGIN INCLUDED TEXT--------------------

ESA-2015-153 EMC SourceOne Email Supervisor Security Update for Multiple 
Security Vulnerabilities

EMC Identifier: ESA-2015-153

CVE Identifier: CVE-2015-6843 CVE-2015-6844 CVE-2015-6845 CVE-2015-6846

Severity Rating: CVSS Base Score:See NVD (http://nvd.nist.gov/) for individual
scores for each CVE

Affected Products

EMC Software: EMC SourceOne Email Supervisor versions prior to 7.2

Summary

A security update for EMC SourceOne Email Supervisor to address various 
vulnerabilities.

Details

The security update to EMC SourceOne Email Supervisor addresses the following
vulnerabilities:

CVE-2015-6843

Improper Restriction of Excessive Authentication Attempts

EMC SourceOne Email Supervisor Reviewer is vulnerable to brute-force password
guessing. An attacker may exploit this vulnerability to launch brute force 
attacks against user passwords and compromise user accounts.

CVSS v2 Base Score: 5.4 (AV:N/AC:H/Au:N/C:C/I:N/A:N)

CVE-2015-6844

Reflected Cross Site Scripting

EMC SourceOne Email Supervisor Reviewer is affected by a Reflected Cross-Site
Scripting vulnerability. Attackers may potentially exploit this vulnerability
to execute arbitrary HTML or Javascript code in the user's browser 
session in the context of the affected website.

CVSS v2 Base Score: 5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P)

CVE-2015-6845

Session Hijacking Vulnerability

EMC SourceOne Email Supervisor is vulnerable to session hijacking attacks. 
Attackers may guess the session ID's of other users since the entropy of a 
session ID is poor.

CVSS v2 Base Score: 4.6 (AV:A/AC:H/Au:N/C:C/I:N/A:N)

CVE-2015-6846

Use of hard-coded encryption keys

EMC SourceOne Email Supervisor is vulnerable to reverse engineering attacks. 
Certain components in EMC SourceOne Email Supervisor when reverse engineered 
reveal encryption keys which are hard-coded and may be used by an attacker to
compromise a system.

CVSS v2 Base Score: 5.4 (AV:A/AC:M/Au:N/C:P/I:P/A:P)

Resolution

The following EMC SourceOne Email Supervisor release contains resolutions to 
these vulnerabilities:

EMC SourceOne Email Supervisor version 7.2

EMC recommends all customers upgrade at the earliest opportunity.

Link To Remedies

EMC SourceOne Email Supervisor customers can download the required 
installation files from EMC Online Support (https://support.emc.com/ ).

Read and use the information in this EMC Security Advisory to assist in 
avoiding any situation that might arise from the problems described herein. If
you have any questions regarding this product alert, contact EMC Software 
Technical Support at 1-877-534-2867. EMC Corporation distributes EMC Security
Advisories, in order to bring to the attention of users of the affected EMC 
products, important security information. EMC recommends that all users 
determine the applicability of this information to their individual situations
and take appropriate action. The information set forth herein is provided "as
is" without warranty of any kind. EMC disclaims all warranties, either express
or implied, including the warranties of merchantability, fitness for a 
particular purpose, title and non-infringement. In no event, shall EMC or its
suppliers, be liable for any damages whatsoever including direct, indirect, 
incidental, consequential, loss of business profits or special damages, even 
if EMC or its suppliers have been advised of the possibility of such damages.
Some states do not allow the exclusion or limitation of liability for 
consequential or incidental damages, so the foregoing limitation may not 
apply.

EMC Product Security Response Center

security_alert@emc.com

- --------------------------END INCLUDED TEXT--------------------

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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