Moxa NPort W2x50A up to 2.1 Web Server net_WebPingGetValue HTTP POST Request os command injection

Summaryinfo

A vulnerability has been found in Moxa NPort W2x50A up to 2.1 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/net_WebPingGetValue of the component Web Server. The manipulation as part of HTTP POST Request leads to os command injection. This vulnerability is referenced as CVE-2018-19659. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Moxa NPort W2x50A up to 2.1 (Automation Software). It has been rated as critical. This issue affects an unknown part of the file /goform/net_WebPingGetValue of the component Web Server. The manipulation as part of a HTTP POST Request leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An exploitable authenticated command-injection vulnerability exists in the web server functionality of Moxa NPort W2x50A products with firmware before 2.2 Build_18082311. A specially crafted HTTP POST request to /goform/net_WebPingGetValue can result in running OS commands as the root user. This is similar to CVE-2017-12120.

The bug was discovered 11/29/2018. The weakness was published 12/06/2018 as not defined mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2018-19659 since 11/29/2018. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.2 Build_18082311 eliminates this vulnerability.

Similar entry is available at VDB-127656. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Automation Software

Vendor

• Moxa

Name

• NPort W2x50A

Version

• 2.0
• 2.1

License

• commercial

Website

• Vendor: https://www.moxa.com/

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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