Advisory Details

February 11th, 2020

Moxa MGate 5105-MB-EIP DestIP Command Injection Remote Code Execution Vulnerability

CVE ID	CVE-2020-8858
CVSS SCORE	8.8, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Moxa
AFFECTED PRODUCTS	MGate 5105-MB-EIP
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of Moxa MGate 5105-MB-EIP. Authentication is required to exploit this vulnerability. The specific flaw exists within the DestIP parameter within MainPing.asp. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.
ADDITIONAL DETAILS	Moxa has issued an update to correct this vulnerability. More details can be found at: https://www.moxa.com/en/support/support/security-advisory/mgate-5105-mb-eip-series-protocol-gateways-vulnerability
DISCLOSURE TIMELINE	2019-10-23 - Vulnerability reported to vendor 2020-02-11 - Coordinated public release of advisory 2020-04-01 - Advisory Updated
CREDIT	Dove Chiu, Philippe Lin, Charles Perine, Marco Balduzzi, Ryan Flores, Rainer Vosseler

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