ZDI-20-593: Advantech WebAccess/SCADA ViewSrv IOCTL 0x00002723 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 0x00002723 in ViewSrv.dll. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Advantech WebAccess/SCADA |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-20-593?
The severity of ZDI-20-593 is considered high due to its potential for remote code execution without authentication.
How do I fix ZDI-20-593?
To fix ZDI-20-593, you should update Advantech WebAccess/SCADA to the latest version where the vulnerability has been patched.
What type of vulnerability is ZDI-20-593?
ZDI-20-593 is a remote code execution vulnerability within the ViewSrv.dll file of Advantech WebAccess/SCADA.
Who is affected by ZDI-20-593?
Organizations using Advantech WebAccess/SCADA installations are affected by ZDI-20-593.
Is authentication required to exploit ZDI-20-593?
No, authentication is not required to exploit ZDI-20-593.
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