FarsiNews Input Validation Hole in 'search.php' Permits Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1015943
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SecurityTracker URL: http://securitytracker.com/id?1015943
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Apr 15 2006
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Impact: Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Exploit Included: Yes
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Version(s): 2.5.3 Pro and prior versions
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Description: R@1D3N (amin emami) reported a vulnerability in FarsiNews. A remote user can conduct cross-site scripting attacks. A remote user can also determine the installation path.
The 'search.php' script does not properly filter HTML code from user-supplied input in the 'selected_search_arch' parameter 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 FarsiNews 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]/[farsinews_path]/search.php?selected_sear
ch_arch=><script>alert(document.cookie)</script><!--
http://[target]/[farsinews_path]/search.php?selected_search_arch=%3E%3Cscript%3Ealert%28document.cookie%29%3C%2Fsc
ript%3E%3C%21--
A remote user can also supply a URL with a specially crafted 'archive' parameter value to cause the system to
display an error message that discloses the installation path and other data.
A demonstration exploit URL is provided:
http://[target]/[farsinews_path]/index.php?su
baction=showfull
&id=30000000000&archive=../../../../../../etc/passwd%00&start_from=&ucat=1&
The original advisory is available
at:
http://www.aria-security.net/advisory/farsinews/farsinews042006.txt
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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
FarsiNews 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.
A remote user can determine the installation path.
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Solution: No solution was available at the time of this entry.
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Vendor URL: www.farsinewsteam.com/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Reported By: aminrayden@yahoo.com
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Message History:
None.
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Source Message Contents
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Date: Fri, 14 Apr 2006 11:54:07 +0000
From: aminrayden@yahoo.com
Subject: Farsinews Cross-Site Scripting & Path disclosure vulnerability
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Farsinews Cross-Site Scripting & Path disclosure vulnerability
#''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''
#Aria-Security.net Advisory
#Discovered by:R@1D3N (amin emami)
#<AminRayden@yahoo.com>
#Gr33t to:A.u.r.a & O.u.t.l.a.w & Smok3r & behzad & majid and all Persian Security t
eam
#''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'''''''''''''''
» Software: Farsinews 2.5.3 Pro and below
» download Link:http://dl.farsinewsteam.com/?file=FarsiNews2.5.3Pro.zip
» Support Website:http://www.farsinewsteam.com/
» advisory:http://www.aria-security.net/advisory/farsinews/farsinews042006.txt
» Summary:
Farsinews is Powerful Persian news publishing system
» Proof of Concept:
XSS attack:
http://[target]/[farsinews_path]/search.php?selected_search_arch=><script>alert(document.coo
kie)</script><!--
http://[target]/[farsinews_path]/search.php?selected_search_arch=%3E%3Cscript%3Ealert%28document.cook
ie%29%3C%2Fscript%3E%3C%21--
Path disclosure:
A remote user can supply a specially crafted URL to
cause the system to display an error message that
discloses the installation path and other data.
Bug exists in "index.php"
example:
http://[target]/[farsinews_path]/index.php?subaction=showfull
&id=30000000000&archive=../../../../../../etc/passwd%00&start_from=&ucat=
1&
Error:
Warning:
file(/home/cannonc/public_html/smf/test/data/archives/../../../../../../.
./../../etc/passwd\0.news.arch):
failed to open stream: No such file or directory in
/home/cannonc/public_html/smf/test/inc/shows.inc.php on line 62
Warning: Invalid argument supplied for foreach() in
/home/cannonc/public_html/smf/test/inc/shows.inc.php on line 270
Can not find an article with id:30000000000
Solution:
contact advisory@aria-security.net
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