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K
zdiMat Powell of Trend Micro Zero Day InitiativeZDI-19-584
HistoryJul 02, 2019 - 12:00 a.m.

Advantech WebAccess Node bwdraw Out-Of-Bounds Write Remote Code Execution Vulnerability

2019-07-0200:00:00
Mat Powell of Trend Micro Zero Day Initiative
www.zerodayinitiative.com
5

0.061 Low

EPSS

Percentile

93.5%

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 bwdraw.exe, which is accessed through the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.

0.061 Low

EPSS

Percentile

93.5%