ZDI-20-616: Advantech WebAccess/SCADA BwWebSvc IOCTL 0x00013c77 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 processing of IOCTL 0x00013c77 in BwWebSvc.dll. The issue results from the lack of proper validation of user-supplied data, which can trigger an overflow of a fixed-length 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-20-616?
The severity of ZDI-20-616 is critical due to its potential for remote code execution without authentication.
How do I fix ZDI-20-616?
To mitigate ZDI-20-616, update to the latest version of Advantech WebAccess/SCADA that addresses this vulnerability.
What kind of attack does ZDI-20-616 enable?
ZDI-20-616 enables remote attackers to execute arbitrary code on affected installations.
Is authentication required to exploit ZDI-20-616?
No, authentication is not required to exploit ZDI-20-616.
Which product is affected by ZDI-20-616?
ZDI-20-616 affects Advantech WebAccess/SCADA installations.
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