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Pecio Content Management System (CMS) v2.0.5 Cross-Site scripting Vulnerability

SecPod Technologies (www.secpod.com)
Author: Antu Sanadi
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SecPod ID:      1006                            09/10/2010 Issue Discovered
                                                09/21/2010 Vendor Notified
                                                09/21/2010 Vendor Confirmed
                                                Solution not available.


Class: Cross-Site Scripting                     Severity: Medium


Overview:
---------
Pecio Content Management System (CMS) is prone to cross-site scripting
vulnerability.

Technical Description:
----------------------
Pecio Content Management System (CMS) is prone to a cross-site scripting
vulnerability as it fails to properly sanitize user-supplied input.

Input passed via the 'target' parameter in 'search' action in index.php is
not properly verified before it is returned to the user. This can be exploited
to execute arbitrary HTML and script code in a user's browser session in the
context of a vulnerable site. This may allow an attacker to steal cookie-based
authentications and launch further attacks.

The vulnerability has been tested in Pecio CMS v2.0.5 and 2.0.2 Other versions
may also be affected.


Impact:
--------
Successful exploitation could allow an attacker to execute arbitrary HTML
code in a user's browser session in the context of a vulnerable application.


Affected Software:
------------------
Pecio CMS v2.0.5 and prior.

Tested on,
Pecio CMS v2.0.5 and 2.0.2(tested using Mozilla firefox browser)


References:
-----------
http://pecio-cms.com/
http://secpod.org/blog/?p=137
http://secpod.org/advisories/SECPOD_pecioCMS_XSS.txt

Proof of Concept:
-----------------
http://IP_ADDR/pecio/index.php?target=search&term=<script>alert('XSS-Test')</script>


Solution:
----------
Fix not available


Risk Factor:
-------------
    CVSS Score Report
        ACCESS_VECTOR          = NETWORK
        ACCESS_COMPLEXITY      = MEDIUM
        AUTHENTICATION         = NONE
        CONFIDENTIALITY_IMPACT = NONE
        INTEGRITY_IMPACT       = PARTIAL
        AVAILABILITY_IMPACT    = NONE
        EXPLOITABILITY         = PROOF_OF_CONCEPT
        REMEDIATION_LEVEL      = UNAVAILABLE
        REPORT_CONFIDENCE      = CONFIRMED
        CVSS Base Score        = 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N)


Credits:
--------
Antu Sanadi of SecPod Technologies has been credited with the discovery of this
vulnerability.