ZDI-20-625: Advantech WebAccess/SCADA SyntecUA Stack-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 SyntecUA device driver. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-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-20-625?
The severity of ZDI-20-625 is high due to the potential for remote code execution without authentication.
How do I fix ZDI-20-625?
To fix ZDI-20-625, update Advantech WebAccess/SCADA to the latest version where the vulnerability has been patched.
What systems are affected by ZDI-20-625?
ZDI-20-625 affects installations of Advantech WebAccess/SCADA that utilize the vulnerable SyntecUA device driver.
Can ZDI-20-625 be exploited remotely?
Yes, ZDI-20-625 can be exploited remotely since no authentication is required to execute arbitrary code.
What type of vulnerability is ZDI-20-625?
ZDI-20-625 is a remote code execution vulnerability found in the SyntecUA device driver.
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