PunBB Input Validation Bugs in 'email' and 'Jabber' Profile Parameters Let Remote Users Conduct Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1013446 |
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SecurityTracker URL: http://securitytracker.com/id/1013446
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Mar 16 2005
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Impact:
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Exploit Included: Yes
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Version(s): 1.2.3
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Description:
Benji Lemien reported an input validation vulnerability in PunBB. A remote user can conduct cross-site scripting attacks.
The profile page does not properly validate user-supplied input in the 'email' and 'Jabber' fields. A remote user can submit a specially crafted value. Then, when a target user views the remote user's profile, arbitrary scripting code will be executed by the target user's browser. The code will originate from the site running the PunBB software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
A demonstration exploit e-mail value is provided:
benji@"/><script>alert()</script>.com
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Impact:
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the PunBB software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
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Solution:
No solution was available at the time of this entry.
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Vendor URL: www.punbb.org/ (Links to External Site)
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Cause:
Input validation error
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Underlying OS:
Linux (Any), UNIX (Any), Windows (Any)
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Message History:
None.
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Source Message Contents
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Date: Tue, 15 Mar 2005 17:39:54 +0000
Subject: faille dans PunBB 1.2.3
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PunBB 1.2.3
[--------------------]
auteur: Benji
*******
--[ XSS: Dans la partie profil on peut injecter du javascript en mettant
comme value:
benji@"/><script>alert()</script>.com dans les zones de textes "email",
"Jabber".
Conclusion: N'importe quel utilisateur qui regarderait le profil d'un
membre ayant exploité la faille peut subir
du pishing ou un vole de cookie. Tout les posts qu'un membre mettra (si
il a exploité la faille
xss dans l'email) executera le code dans chaque msg.
_________________________________________________________________
MSN Actions Solidaires : volontaire à l'étranger
http://www.msn.fr/actionssolidaires/Default.asp?Ath=f
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