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zdiMat Powell of Trend Micro Zero Day InitiativeZDI-19-585
HistoryJul 02, 2019 - 12:00 a.m.

Advantech WebAccess Node makensis Stack-based Buffer Overflow Remote Code Execution Vulnerability

2019-07-0200:00:00
Mat Powell of Trend Micro Zero Day Initiative
www.zerodayinitiative.com
8

EPSS

0.044

Percentile

92.4%

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech WebAccess Node. Authentication is not required to exploit this vulnerability. The specific flaw exists within makensis.exe, which is accessed through the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.

EPSS

0.044

Percentile

92.4%