[NEWS] Cross-Site Scripting in Aestiva's HTML/OS

From: support@securiteam.com
Date: 09/05/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Thu,  5 Sep 2002 15:27:46 +0200 (CEST)

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  Cross-Site Scripting in Aestiva's HTML/OS
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SUMMARY

 <http://www.aestiva.com/pages/htmlos/02943.1.1019246789336614088> Aestiva
HTML/OS is a high-performance database engine and development suite for
building advanced web sites and web-based software products. The product
has been found to contain a security vulnerability that allows remote
attackers to cause it to display third party data as if it were its own.

DETAILS

The Aestiva HTML/OS CGIs has been found to be vulnerable to XSS due to
poor error reporting (no meta-character filtering).

Anything you want can be appended to any URL ending in '/' in an area of
the website where HTML/OS is handling the request. The resulting error
message will echo back the unfiltered request.

Examples:
EAX will refrain from listing real-world examples
(s/www.example.com/<target>/):

http://www.example.com/pages/htmlos/%3Cscript%3Ealert(document.domain);%3C/script%3E
http://www.example.com/cgi-bin/erba/start/%3Cscript%3Ealert(document.domain);%3C/script%3E
http://www.exmaple.com/cgi-bin/start.cgi/%3Cscript%3Ealert(document.domain);%3C/script%3E

Thousands of websites are currently vulnerable according to Google,
including Aestiva.com.

Vendor status:
Has been notified but has not responded.

ADDITIONAL INFORMATION

The information has been provided by <mailto:eax@3xT.org> eax.

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