ZDI-20-621: Advantech WebAccess/SCADA BwTCPIP 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 BwTCPIP 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 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-20-621?
The severity of ZDI-20-621 is critical due to its ability to allow remote code execution without authentication.
How do I fix ZDI-20-621?
To fix ZDI-20-621, update to the latest version of Advantech WebAccess/SCADA that addresses this vulnerability.
What types of attacks can exploit ZDI-20-621?
ZDI-20-621 can be exploited by remote attackers executing arbitrary code on affected systems.
Which systems are affected by ZDI-20-621?
ZDI-20-621 affects installations of Advantech WebAccess/SCADA that use the BwTCPIP device driver.
Is authentication required to exploit ZDI-20-621?
No, exploitation of ZDI-20-621 does not require authentication.
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