E-Journal CMS (ID) - Multiple Web Vulnerabilities

[Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>]

Document Title:
===============
E-Journal CMS (ID) - Multiple Web Vulnerabilities 


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1380


Release Date:
=============
2014-12-17


Vulnerability Laboratory ID (VL-ID):
====================================
1380


Common Vulnerability Scoring System:
====================================
7


Product & Service Introduction:
===============================
http://simlitabmas.dikti.go.id/ejournal/ 


Abstract Advisory Information:
==============================
An independent Vulnerability Laboratory Researcher discovered multiple 
vulnerabilities in the indonesian E-Journal web-application.


Vulnerability Disclosure Timeline:
==================================
2013-12-17:     Public Disclosure


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Remote


Severity Level:
===============
High


Technical Details & Description:
================================
1.1
A sql injection web vulnerability has been discovered in the official E-Journal 
(ID) content management system.
The vulnerability allows remote attackers to execute own sql commands by usage 
of a vulnerable serivce value.

The vulnerability is located in the id value of the jurnal.php file. Remote 
attackers are able to execute own 
sql commands by usage of a GET method request with manipulated id value. Remote 
attackers are able to read 
database information by execution of own sql commands. The vulnerability is 
located in the client-side and the 
request method to execute sql commands is GET.

The security risk of the sql vulnerability is estimated as high with a cvss 
(common vulnerability scoring system) count of 7.0. 
Exploitation of the sql injection web vulnerability does not require a 
privileged application user account or user interaction.
Successful exploitation of the remote vulnerability results in database 
management system and web-application compromise.

Request Method(s):
                                [+] GET

Vulnerable Module(s):
                                [+] jurnal

Vulnerable File(s):
                                [+] jurnal.php

Vulnerable Parameter(s):
                                [+] id


1.2
A privilege escalation vulnerability has been discovered in the official 
E-Journal (ID) content management system.
The vulnerability allows an attacker to escalate of the restricted privileges, 
to gain for example higher access controls.

The privilege escalation vulnerability is located in tambah value of the URL 
input in the data.php file. Remote attackers can switch 
the menu to escalte with privileges by adding a new administrator account. The 
vulnerability is located on the application-side and 
the request method to inject is POST.

The security risk of the privilege escalation vulnerability is estimated as 
high with a cvss (common vulnerability scoring system) count of 6.9. 
Exploitation of the privilege escalation web vulnerability requires a low 
privileged application user account and no user interaction.
Successful exploitation of the remote vulnerability results in information 
leaking, database management system- and web-application -compromise.


Request Method(s):
                                [+] POST

Vulnerable Module(s):
                                [+] URL

Vulnerable File(s):
                                [+] data.php

Vulnerable Parameter(s):
                                [+] tambah


Proof of Concept (PoC):
=======================
The vulnerabilities can be exploited by remote attackers without privileged 
application user account and user interaction.
For security demonstration or to reproduce the security vulnerability follow 
the provided information and steps below to continue.

Dork(s):
inurl:mahasiswa.php intitle:E-Journal 
inurl:dosen.php intitle:E-Journal 
inurl:jurnal.php intitle:E-Journal 
inurl:dokumen.php intitle:E-Journal 
"Karya Tulis Mahasiswa" intitle:E-Journal 
"Design & Programming by" intitle:E-Journal 
"E-Journal adalah aplikasi berbasis web untuk" 
Or use your own Google Dorks :) 

Note: This E-Journal CMS has 2 versions, The Old Version doesn't have 
informasi.php (Informasi Menu).  
 
1.1
POC#1: SQL Injection 
http://[Site]/[Path]/jurnal.php?detail=jurnal&id=-'[SQL-INJECTION 
VULNERABILITY]--
 
Reference Url(s): 
http://e-journal.xxx.ac.id/jurnal.php?detail=jurnal&id='133[SQL-INJECTION 
VULNERABILITY]--
http://www.ejournal-xxx.com/jurnal.php?detail=jurnal&id='133[SQL-INJECTION 
VULNERABILITY]--
http://e-journal.xxx.ac.id/jurnal.php?detail=jurnal&id='133[SQL-INJECTION 
VULNERABILITY]--
http://ejurnal.xxx.ac.id/jurnal.php?detail=jurnal&id='133[SQL-INJECTION 
VULNERABILITY]--
http://ejournal.xxx.ac.id/jurnal.php?detail=jurnal&id='133[SQL-INJECTION 
VULNERABILITY]--


1.2    
PoC#2: Privilege Escalation  
You can create a new administrator account by usage of the following trick.
For Example my Target url is : http://www.ejournal-xxx.com/ 
 
Step1: Add data.php?tambah=dosen in the URL. So in this case the URL was 
http://www.ejournal-xxx.com/data.php?tambah=dosen 
Step2: Then you can see this notice : "ANDA TIDAK BERHAK MENGAKSES HALAMAN INI. 
SILAHKAN ANDA LOGIN SEBAGAI ADMINISTRATOR". 
Ignore that Notice and click Admin Menu.  Screenshot #1 : 
http://i59.tinypic.com/54he2b.png 
Step3: Successful exploited! Now you can add an Administrator Account. 
Screenshot #2 : http://i59.tinypic.com/2i8vyus.png 


Solution - Fix & Patch:
=======================
1.1
The vulnerability can be patched by usage of a prepared statement. Encode and 
parse the vulnerable id value in the jurnal.php file to prevent sql injection 
attacks.

1.2
Restrict the URL parameter input to prevent unauthorized account adds. Parse 
the URL value and encode the input restrict the url to a local source.


Security Risk:
==============
1.1
The security risk of the remote sql injection web vulnerability in the 
e-journal application is estimated as high. (CVSS 7.0)

1.2
The security risk of the privilege escalation web vulnerability in the URL 
parameter is estimated as high. (CVSS 6.9)


Credits & Authors:
==================
X-Cisadane - Stefanus (steevee.aka@xxxxxxxxx)
Greetz to: X-Code YogyaFree, Explore Crew, CodeNesia, Bogor Hackers Community, 
Tomi Zaoldyeck and Winda Utari 


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