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Title:
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======
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PBBoard v2.1.4 CMS - Multiple Web Vulnerabilities
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Date:
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=====
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2012-06-26
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References:
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===========
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http://www.vulnerability-lab.com/get_content.php?id=623
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VL-ID:
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=====
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625
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Common Vulnerability Scoring System:
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====================================
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4.5
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Introduction:
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=============
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PBBoard forum is a free and very famous flat-forum bulletin board software.
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- LICENSE: http://www.pbboard.com/manual/license.txt
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- INSTALL And UPGRADE : http://www.pbboard.com/pbb_manual/README.html
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- English Style : http://www.pbboard.com/forums/t6478.html
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- Languages : http://www.pbboard.com/forums/index.php?page=pages&show=1&id=6
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- Converter: http://www.pbboard.com/forums/index.php?page=pages&show=1&id=3
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- contact us: http://www.pbboard.com/forums/index.php?page=send&sendmessage=1
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(Copy of the Vendor Homepage: http://www.pbboard.com/ )
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Abstract:
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=========
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The Vulnerability Laboratory Research Team discovered multiple Web vulnerabilities in the PBBoard v2.1.4 forum application.
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Report-Timeline:
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================
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2012-06-26: Public Disclosure
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Status:
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========
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Published
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Exploitation-Technique:
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=======================
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Remote
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Severity:
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=========
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Medium
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Details:
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========
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A persistent web vulnerability is detected in the PBBoard v2.1.4 forum application.
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The bug allows remote attackers to implement/inject malicious script code on the application side (persistent).
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The persistent vulnerability is located in the add poll function when adding a thread. The malicious code can be injected in the `answer field`.
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The output listing page with the pool executed the malicious persistent script code (JS/HTML).
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Successful exploitation of the vulnerability can lead to stable (persistent) context manipulation.
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Exploitation requires low user inter-action.
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Vulnerable Module(s):
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[+] Add thread > Add poll
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Vulnerable Parameter(s):
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[+] [Answer]
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Proof of Concept:
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=================
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The persistent input validation vulnerabilities can be exploited by remote attackers with low privileged
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user account & required user inter action. For demonstration or reproduce ...
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To reproduce the vulnerability, the attacker should add a new thread and the check on the add poll button. After that
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the attacker can add his malicious code in the answer field of the poll. Anyone who's viewing that thread will be
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exploited by the malicious code. Such attack can result in session hijacking, redirecting or cookie theft. Moreover,
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the persistent XSS can be exploited to launch a CSRF attack to the user and to exploit the other CSRF vulnerabilities
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in the same product to completely hack the application.
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Poll: <iframe src=http://www.vuln-lab.com></iframe> !
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</span>
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</td>
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</tr>
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<tr align="center">
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<td class="thead" width="95%" colspan="3">
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Question :<strong>&<iframe src=http://www.vuln-lab.com></iframe> !</strong>
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</td>
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</tr> <tr>
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<td class="row1" width="50%">
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<input type="radio" name="answer" value="0">
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<iframe src=http://www.vw.de></iframe></td>
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<td class="row1" width="40%">
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<img src="look/styles/forum/main/images/bar_right.gif" alt="" width="4" height="11"><img src="look/styles/forum/main/images/bar.gif"
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alt="" width="0" height="11"><img src="look/styles/forum/main/images/bar_left.gif" alt="" width="4" height="11">
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</td>
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<td class="row1" width="12%" align="center">
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Voters: 0 </td>
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</tr>
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<tr>
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<td class="row1" width="50%">
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<input type="radio" name="answer" value="1">
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<[PERSISTENT SCRIPT CODE]></iframe></td>
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<td class="row1" width="40%">
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<img src="look/styles/forum/main/images/bar_right.gif" alt="" width="4" height="11">
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<img src="look/styles/forum/main/images/bar.gif" alt="" width="0" height="11">
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<img src="look/styles/forum/main/images/bar_left.gif" alt="" width="4" height="11">
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</td>
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<td class="row1" width="12%" align="center">
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Risk:
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=====
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The security risk of the persistent input validation vulnerabilities is estimated as medium(+).
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Credits:
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========
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Vulnerability Laboratory [Research Team] - Ibrahim El-Sayed [the StOrM) (storm@vulnerability-lab.com)
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Disclaimer:
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===========
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The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,
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either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
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Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business
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profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some
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states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation
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may not apply.
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Domains: www.vulnerability-lab.com - www.vuln-lab.com
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Contact: admin@vulnerability-lab.com - support@vulnerability-lab.com - research@vulnerability-lab.com
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Section: video.vulnerability-lab.com - forum.vulnerability-lab.com - news.vulnerability-lab.com
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Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab
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Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory.
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Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other
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media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, sourcecode, videos and
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other information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed),
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modify, use or edit our material contact (admin@vulnerability-lab.com or support@vulnerability-lab.com) to get a permission.
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Copyright <20> 2012 Vulnerability-Lab
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--
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VULNERABILITY RESEARCH LABORATORY TEAM
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Website: www.vulnerability-lab.com
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Mail: research@vulnerability-lab.com |