WHMCS WHMCompleteSolution 3.0.0 clientarea.php templatefile path traversal

Summaryinfo

A vulnerability described as problematic has been identified in WHMCS WHMCompleteSolution 3.0.0. Impacted is an unknown function of the file clientarea.php. Executing a manipulation of the argument templatefile can lead to path traversal. This vulnerability is registered as CVE-2011-4813. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in WHMCS WHMCompleteSolution 3.0.0. This vulnerability affects an unknown code block of the file clientarea.php. The manipulation of the argument templatefile with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. CVE summarizes:

Directory traversal vulnerability in clientarea.php in WHMCompleteSolution (WHMCS) 3.x.x allows remote attackers to read arbitrary files via an invalid action and a ../ (dot dot slash) in the templatefile parameter.

The weakness was published 12/13/2011 (Website). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2011-4813 since 12/13/2011. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:clientarea.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (18081) and OSVDB (77758†). Similar entry is available at VDB-59677. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• WHMCS

Name

• WHMCompleteSolution

Version

• 3.0.0

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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