CVE-2020-27275: Delta Industrial Automation DOPSoft XLS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Delta Electronics DOPSoft Version 4.0.8.21 and prior is vulnerable to an out-of-bounds write while processing project files, which may allow an attacker to execute arbitrary code.
Other sources
This vulnerability allows remote atackers to execute arbitrary code on affected installations of Delta Industrial Automation DOPSoft. 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 parsing of XLS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write before the start of a data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.
— ZDI
This vulnerability allows remote atackers to execute arbitrary code on affected installations of Delta Industrial Automation DOPSoft. 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 parsing of XLS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Industrial Automation DOPSoft. 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 parsing of DPA files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
— ZDI
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Industrial Automation DOPSoft. 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 parsing of XLS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-27275?
CVE-2020-27275 is a vulnerability in Delta Industrial Automation DOPSoft that allows remote attackers to execute arbitrary code.
How can this vulnerability be exploited?
This vulnerability requires user interaction, either by visiting a malicious page or opening a malicious file.
Which versions of Delta Industrial Automation DOPSoft are affected?
The vulnerability affects Delta Industrial Automation DOPSoft versions up to and including 4.0.8.21.
What is the severity of CVE-2020-27275?
The severity of CVE-2020-27275 is critical with a CVSS score of 7.8.
How can I fix CVE-2020-27275?
To fix CVE-2020-27275, users should update their Delta Industrial Automation DOPSoft installation to a version that is not affected.