ZDI-19-403: Delta Industrial Automation CNCSoft ScreenEditor DPB File Parsing wMessageLen Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Delta Industrial Automation CNCSoft ScreenEditor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of DPB files. When parsing the wMessageLen element, the process does not properly validate 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 the Administrator.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Delta Electronics Industrial Automation CNCSoft ScreenEditor |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-19-403?
The severity of ZDI-19-403 is critical due to its ability to allow remote code execution.
How do I fix ZDI-19-403?
To fix ZDI-19-403, users should update Delta Industrial Automation CNCSoft ScreenEditor to the latest version that includes security patches.
What types of attacks can exploit ZDI-19-403?
ZDI-19-403 can be exploited through malicious web pages or files that require user interaction to trigger the vulnerability.
Who is affected by ZDI-19-403?
ZDI-19-403 affects installations of Delta Industrial Automation CNCSoft ScreenEditor that have not been updated to the latest security version.
What user actions can lead to exploitation of ZDI-19-403?
Exploitation of ZDI-19-403 requires the user to visit a malicious webpage or open a malicious file which contains the exploit.
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