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aCMS 1.0 Shell Upload / Insufficient Authorization

🗓️ 04 Jun 2013 00:00:00Reported by MustLiveType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 24 Views

Insufficient authorization and arbitrary file uploading in aCMS 1.

Code
`Hello list!  
  
These are Insufficient Authorization and Arbitrary File Uploading  
vulnerabilities in aCMS. This is commercial CMS. There are multiple  
vulnerabilities in aCMS and it's the second part of them.  
  
-------------------------  
Affected products:  
-------------------------  
  
Vulnerable are aCMS 1.0 and previous versions.  
  
-------------------------  
Affected vendors:  
-------------------------  
  
Almacor  
http://almacor.ru  
  
----------  
Details:  
----------  
  
Insufficient Authorization (WASC-02):  
  
There is no restriction on accessing file manager and image manager. Which  
is not default behavior (developer of MCFileManager and MCImageManager  
states, that by default these web applications require authorization) and is  
made by developers of aCMS.  
  
http://site/assets/js/tiny_mce/plugins/filemanager/pages/fm/index.html  
  
http://site/assets/js/tiny_mce/plugins/imagemanager/pages/im/index.html  
  
Arbitrary File Uploading (WASC-31):  
  
Plugins MCFileManager and MCImageManager for TinyMCE, which are using in the  
system, are vulnerable to execution of arbitrary code through bypass of  
programs' security filters (on IIS and Apache web servers).  
  
http://site/assets/js/tiny_mce/plugins/filemanager/pages/fm/index.html  
  
http://site/assets/js/tiny_mce/plugins/imagemanager/pages/im/index.html  
  
Code will execute via file uploading. The first program is vulnerable to  
three methods of code execution: via using of symbol ";" (1.asp;.txt) in  
file name (IIS). via "1.asp" in folder name (IIS), via double extension  
(1.php.txt) (Apache with special configuration). And the second program is  
vulnerable to two methods of code execution (#1 and #3).  
  
------------  
Timeline:  
------------   
  
2013.03.04 - informed developers about part of the vulnerabilities.  
2013.04.03 - informed developers about another part of the vulnerabilities.  
2013.04.06 - announced at my site.  
2013.04.07 - informed developers about another part of the vulnerabilities.  
2013.05.25 - informed developers about another part of the vulnerabilities.  
In all cases the developers just ignored all messages via different e-mails  
and contact form.  
2013.06.04 - disclosed at my site (http://websecurity.com.ua/6428/).  
  
Best wishes & regards,  
MustLive  
Administrator of Websecurity web site  
http://websecurity.com.ua  
  
`

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