DNS4Me Lets Remote Users Crash the Web Service and Conduct Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1011334
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SecurityTracker URL: http://securitytracker.com/id?1011334
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Sep 17 2004
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Impact: Denial of service via network, 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
Vendor Confirmed: Yes
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Advisory: GulfTech Security Research Team
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Version(s): 3.0.0.4
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Description: Some vulnerabilities were reported in DNS4Me. A remote user can cause the target service to crash. A remote user can also conduct cross-site scripting attacks.
GulfTech Security Research Team reported that a remote user can send a large amount of data to the DNS4Me Web Server to cause the
web service to consume all available CPU resources and eventually crash.
It is also reported that 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 DNS4Me 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 URL is provided:
http://[target]/?%3E%3Cscript%3Ealert('XSS')%3C/script%3E
The vendor
has been notified.
The original advisory is available at:
http://www.gulftech.org/?node=research&article_id=00049-09162004
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Impact: A remote user can cause the DNS4Me web service to crash.
A remote user can access the target user's cookies (including authentication
cookies), if any, associated with the site running the DNS4Me 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. The vendor is working on a fix.
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Vendor URL: www.dns4me.com/ (Links to External Site)
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Cause: Exception handling error, Input validation error
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Underlying OS: Windows (Any)
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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