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zdiSteven Seeley (mr_me) of Offensive SecurityZDI-18-499
HistoryMay 18, 2018 - 12:00 a.m.

Advantech WebAccess Node webvrpcs drawsrv Arbitrary File Deletion Vulnerability

2018-05-1800:00:00
Steven Seeley (mr_me) of Offensive Security
www.zerodayinitiative.com
6

0.006 Low

EPSS

Percentile

79.0%

This vulnerability allows remote attackers to delete arbitrary files on vulnerable installations of Advantech WebAccess Node. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the 0x2715 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this functionality to delete files under the context of Administrator.

0.006 Low

EPSS

Percentile

79.0%