Winmail Server 6.1 File netdisk.php Directory path traversal

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Winmail Server 6.1. Impacted is an unknown function of the file netdisk.php of the component File Handler. Performing a manipulation as part of Directory results in path traversal. This vulnerability is cataloged as CVE-2017-9846. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Winmail Server 6.1 (Mail Server Software). This affects an unknown functionality of the file netdisk.php of the component File Handler. The manipulation as part of a Directory leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Winmail Server 6.1 allows remote code execution by authenticated users who leverage directory traversal in a netdisk.php move_folder_file call to move a .php file from the FTP folder into a web folder.

The bug was discovered 06/20/2017. The weakness was shared 06/24/2017 (Website). The advisory is shared at magicwinmail.com. This vulnerability is uniquely identified as CVE-2017-9846 since 06/24/2017. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:netdisk.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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Mail Server Software

Vendor

• Winmail

Name

• Server

Version

• 6.1

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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