Endress+Hauser WirelessHART Fieldgate SWG70 3.x fcgi-bin/wgsetcgi filename path traversal

Summaryinfo

A vulnerability has been found in Endress+Hauser WirelessHART Fieldgate SWG70 3.x and classified as critical. The impacted element is an unknown function of the file fcgi-bin/wgsetcgi. Performing a manipulation of the argument filename results in path traversal. This vulnerability is known as CVE-2018-16059. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Endress+Hauser WirelessHART Fieldgate SWG70 3.x. This affects an unknown part of the file fcgi-bin/wgsetcgi. The manipulation of the argument filename 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 confidentiality, integrity, and availability. The summary by CVE is:

Endress+Hauser WirelessHART Fieldgate SWG70 3.x devices allow Directory Traversal via the fcgi-bin/wgsetcgi filename parameter.

The bug was discovered 08/29/2018. The weakness was published 09/07/2018 as EDB-ID 45342 as not defined exploit (Exploit-DB). It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2018-16059 since 08/28/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

After immediately, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 9 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.

The vulnerability is also documented in the vulnerability database at Exploit-DB (45342). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Endress+Hauser

Name

• WirelessHART Fieldgate SWG70

Version

• 3.x

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

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

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