ZDI-CAN-9994: Advantech WebAccess/SCADA DATACORE IOCTL 0x0000791c Heap-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech WebAccess/SCADA. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of IOCTL 0x0000791c in DATACORE.exe. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.

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• alias/ZDI-CAN-9994
• alias/CVE-2020-10638
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• canonical/advantech webaccess/scada