A vulnerability was found in HongCMS 3.0.0. It has been declared as critical. This vulnerability affects some unknown processing of the file admin/index.php/language/edit. The manipulation of the argument filename with the input value ../ 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, integrity, and availability. CVE summarizes:

HongCMS 3.0.0 allows arbitrary file read and write operations via a ../ in the filename parameter to the admin/index.php/language/edit URI.

The bug was discovered 01/27/2019. The weakness was presented 02/17/2019. This vulnerability was named CVE-2019-8407 since 02/17/2019. The exploitation appears to be easy. The attack can be initiated remotely. Required for exploitation is a single 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 21 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.

Once again VulDB remains the best source for vulnerability data.

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• HongCMS

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• 3.0.0

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CPE 2.2info

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