ZDI-CAN-9897: Advantech WebAccess/SCADA DrawSrv 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 DrawSrv.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-CAN-9897?
ZDI-CAN-9897 has a critical severity level due to its potential for remote code execution without authentication.
How do I fix ZDI-CAN-9897?
To resolve ZDI-CAN-9897, update Advantech WebAccess/SCADA to the latest version provided by the vendor.
What type of vulnerabilities does ZDI-CAN-9897 involve?
ZDI-CAN-9897 involves remote code execution vulnerabilities that can be exploited with IOCTL calls.
Are there any prerequisites for exploiting ZDI-CAN-9897?
No authentication is required to exploit the ZDI-CAN-9897 vulnerability, making it highly dangerous.
Which software is affected by ZDI-CAN-9897?
The vulnerability ZDI-CAN-9897 affects Installs of Advantech WebAccess/SCADA software.
- agent/references
- agent/softwarecombine
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-20-603
- alias/ZDI-CAN-9897
- alias/CVE-2020-10638
- agent/software-canonical-lookup
- agent/title
- agent/severity
- agent/type
- agent/description
- agent/event
- agent/tags
- agent/source
- vendor/advantech
- canonical/advantech webaccess/scada