A vulnerability, which was classified as problematic, was found in WonderCMS 2.4.0. Affected is an unknown code block of the file index.php. The manipulation with an unknown input 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 integrity, and availability. CVE summarizes:

In index.php in WonderCMS 2.4.0, remote attackers can delete arbitrary files via directory traversal.

The bug was discovered 02/17/2018. The weakness was released 02/27/2018 (Website). The advisory is shared for download at foreversong.cn. This vulnerability is traded as CVE-2018-7172 since 02/15/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:index.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.

Entries connected to this vulnerability are available at VDB-256326, VDB-256448, VDB-257691 and VDB-257983.

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• WonderCMS

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• 2.4.0

License

• open-source

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• 🔍

CPE 2.2info

• 🔍

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