[KIS-2013-05] vtiger CRM <= 5.4.0 (customerportal.php) Two Local File Inclusion Vulnerabilities

2013-09-0900:00:00

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vtiger CRM <= 5.4.0 (customerportal.php) Two Local File Inclusion Vulnerabilities

[-] Software Link:

http://www.vtiger.com/

[-] Affected Versions:

[1] All versions from 5.1.0 to 5.4.0.
[2] All versions from 5.2.0 to 5.4.0.

[-] Vulnerability Description:

1) The vulnerable code is located in the get_list_values SOAP method defined in /soap/customerportal.php:

function get_list_values($id,$module,$sessionid,$only_mine='true')
{

   require_once&#40;&#39;modules/&#39;.$module.&#39;/&#39;.$module.&#39;.php&#39;&#41;;

   require_once&#40;&#39;include/utils/UserInfoUtil.php&#39;&#41;;

```
   global $adb,$log,$current_user;
```

   $log-&gt;debug&#40;&quot;Entering customer portal function get_list_values&quot;&#41;;

2) The vulnerable code is located in the get_project_components SOAP method defined in /soap/customerportal.php:

function get_project_components($id,$module,$customerid,$sessionid) {

   require_once&#40;&quot;modules/$module/$module.php&quot;&#41;;

   require_once&#40;&#39;include/utils/UserInfoUtil.php&#39;&#41;;

```
   global $adb,$log;
```

   $log-&gt;debug&#40;&quot;Entering customer portal function get_project_components ..&quot;&#41;;

The vulnerabilities exist because these methods fail to properly validate input passed through the "module"
parameter, that is being used in a call to the require_once() function (lines 1530 and 2779). This might be
exploited to include arbitrary local files containing malicious PHP code. Successful exploitation of these
vulnerabilities requires the application running on PHP < 5.3.4, because a null byte injection is required.

[-] Solution:

Apply the vendor patch:http://www.vtiger.com/blogs/?p=1467

[-] Disclosure Timeline:

[13/01/2013] - Vendor notified
[06/02/2013] - Vendor asked feedback abouthttp://trac.vtiger.com/cgi-bin/trac.cgi/changeset/13848
[05/03/2013] - Feedback provided to the vendor
[26/03/2013] - Vendor patch released
[18/04/2013] - CVE number requested
[20/04/2013] - CVE number assigned
[01/08/2013] - Public disclosure

[-] CVE Reference:

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2013-3212 to these vulnerabilities.

[-] Credits:

Vulnerabilities discovered by Egidio Romano.

[-] Original Advisory:

http://karmainsecurity.com/KIS-2013-05