A vulnerability was found in Marcin Manek d.net CMS (Content Management System) (the affected version is unknown). It has been rated as critical. This issue affects an unknown code. The manipulation of the argument type with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Directory traversal vulnerability in dnet_admin/index.php in d.net CMS allows remote authenticated administrators to include and execute arbitrary local files via a .. (dot dot) in the type parameter.

The weakness was disclosed 10/01/2009 (Website). It is possible to read the advisory at milw0rm.com. The identification of this vulnerability is CVE-2009-3515 since 10/01/2009. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is needed for exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

A public exploit has been developed by SirGod and been published before and not just after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 63 days. During that time the estimated underground price was around $0-$5k.

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 vulnerability database at Exploit-DB (9312). The entry 50326 is pretty similar.

Productinfo

Type

• Content Management System

Vendor

• Marcin Manek

Name

• d.net CMS

CPE 2.3info

• 🔍

CPE 2.2info

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