Community Server Input Validation Hole in Search Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1014316
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SecurityTracker URL: http://securitytracker.com/id?1014316
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CVE Reference: CAN-2005-2084
(Links to External Site)
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Updated: Jul 2 2005
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Original Entry Date: Jun 28 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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Fix Available: Yes
Exploit Included: Yes
Vendor Confirmed: Yes
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Version(s): prior to 1.1.0.50615; confirmed on 1.1.0.50517
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Description: abducter_minds reported a vulnerability in Community Server. A remote user can conduct cross-site scripting attacks.
The search feature does not properly validate user-supplied input to remove HTML code before displaying 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 Community 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.
A demonstration exploit URL is provided:
http://[target]/forum/search/SearchResults.aspx?q=><script>alert('CSS%20Vulnerable')</
script><b%20a=a%20&f=&u=
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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
Community 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.
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Solution: The vendor has issued a fixed version (1.1.0.50615).
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Vendor URL: communityserver.org/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Windows (Any)
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Reported By: "abducter_minds@yahoo.com" <abducter_minds@yahoo.com>
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Message History:
None.
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Source Message Contents
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Date: Mon, 27 Jun 2005 03:46:01 -0700 (PDT)
From: "abducter_minds@yahoo.com" <abducter_minds@yahoo.com>
Subject: XSS IN Community forum
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there is aproplem in Community forum
community forum make by asp
i found a xss in search
when we typed
http://www.victim.com/forum/search/SearchResults.aspx?q=><script>alert('CSS%20Vulnerable')<
/script><b%20a=a%20&f=&u=
EXAMPLE
http://forums.asp.net/search/SearchResults.aspx?q=><script>alert('CSS%20Vulnerable')</scr
ipt><b%20a=a%20&f=&u=
it will make a xss
credit
abducter_minds@yahoo.com
all ARAB { EGYPT }
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