MetInfo 5.3.17 ZIP File filedown.php filenames path traversal

Summaryinfo

A vulnerability marked as critical has been reported in MetInfo 5.3.17. This issue affects some unknown processing of the file /admin/system/database/filedown.php of the component ZIP File Handler. The manipulation of the argument filenames with the input ..\ leads to path traversal. This vulnerability is traded as CVE-2017-11500. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MetInfo 5.3.17 (Content Management System). This issue affects an unknown code of the file /admin/system/database/filedown.php of the component ZIP File Handler. The manipulation of the argument filenames with the input value ..\ 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, and integrity. The summary by CVE is:

A directory traversal vulnerability exists in MetInfo 5.3.17. A remote attacker can use ..\ to delete any .zip file via the filenames parameter to /admin/system/database/filedown.php.

The bug was discovered 07/20/2017. The weakness was shared 07/20/2017 (Website). It is possible to read the advisory at blackwolfsec.cc. The identification of this vulnerability is CVE-2017-11500 since 07/20/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

By approaching the search of inurl:admin/system/database/filedown.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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Content Management System

Name

• MetInfo

Version

• 5.3.17

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion