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| | NetWare Enterprise Server PERL Handler Input Validation Flaw Permits Cross-Site Scripting Attacks |
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Categorie: Vulnerability
Posted: 2004-01-26 by ReCall
Views: 335
Source: Click here
| Current Rating: Not rated
|
| | Details |
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Description: Rafel Ivgi (The-Insider) reported an input validation vulnerability in the NetWare Enterprise Server in the CGI2PERL module. A remote user can conduct cross-site scripting attacks.
It is reported that CGI2PERL does not properly filter HTML code from user-supplied input before displaying error messages based on the input. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the NetWare Enterprise web server 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.
Some demonstration exploit URLs are provided:
http://[target]/perl/.pl
http://[target]/servlet/webacc?User.id=">
http://[target]/servlet/web acc?User.id=&User.password=&User.context=cwqlNomoqd
Oq&User.interface=frames&error=login&merge=webacc&action=User.Login&GWAP.ver
sion=">
http://[target]/nsn/"msgbox%20sadas".bas
It is reported that the server may also disclose the installation path to remote users. A demonstration exploit URL is provided:
http://[target]/perl//.pl
Impact: A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the NetWare web server 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.
Solution: No solution was available at the time of this entry.
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