Vera VeraEdge/Veralite Script File get_file.sh filename path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in Vera VeraEdge and Veralite. Affected by this vulnerability is an unknown functionality of the file get_file.sh of the component Script File. This manipulation of the argument filename causes path traversal. This vulnerability appears as CVE-2017-9386. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Vera VeraEdge and Veralite (affected version unknown) and classified as critical. Affected by this vulnerability is an unknown functionality of the file get_file.sh of the component Script File. The manipulation of the argument filename with an unknown input 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. The summary by CVE is:

An issue was discovered on Vera VeraEdge 1.7.19 and Veralite 1.7.481 devices. The device provides a script file called "get_file.sh" which allows a user to retrieve any file stored in the "cmh-ext" folder on the device. However, the "filename" parameter is not validated correctly and this allows an attacker to directory traverse outside the /cmh-ext folder and read any file on the device. It is necessary to create the folder "cmh-ext" on the device which can be executed by an attacker first in an unauthenticated fashion and then execute a directory traversal attack.

The weakness was presented 06/17/2019 as not defined mailinglist post (Bugtraq). It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2017-9386 since 06/02/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-136204, VDB-136205, VDB-136206 and VDB-136207 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Vera

Name

• VeraEdge
• Veralite

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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