TITLE: Comersus Cart Multiple Vulnerabilities
SECUNIA ADVISORY ID: SA13964
VERIFY ADVISORY: http://secunia.com/advisories/13964/
CRITICAL: Moderately critical
IMPACT: Security Bypass, Cross Site Scripting, Manipulation of data
WHERE: >From remote
SOFTWARE: Comersus Cart 6.x http://secunia.com/product/4557/
DESCRIPTION: raf somers has reported some vulnerabilities in Comersus Cart, which can be exploited by malicious people to bypass certain security restrictions, and conduct SQL injection and cross-site scripting attacks.
1) Some installation files are not correctly removed after installation. This can be exploited to login as administrator without authentication by accessing the URL "http//[victim]/backofficelite/comersus_backoffice_install10.asp" directly.
2) Input passed to the HTTP "Referer" header in "/comersus/store/default.asp" isn't properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
Successful exploitation requires that visitor logging is enabled (not default).
3) Input passed to the "comersus_supportError.asp" and "comersus_backofficelite_supportError.asp" scripts isn't properly sanitised before being returned to users. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of a vulnerable site.
The vulnerabilities have been reported in the free version of Comersus Cart 6.0 with BackOffice Lite 6.0 or 6.01.
SOLUTION: Update to version 6.02. http://www.comersus.com/download.html
1) Remove installation files after installation. 2) Disable visitor logging (pIndexVisitsCounter=0).
PROVIDED AND/OR DISCOVERED BY: raf somers
ORIGINAL ADVISORY: http://www.comersus.org/forum/displayMessage.asp?mid=32753
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