VariCAD EN up to and including version 2010-2.05 is vulnerable to a stack-based buffer overflow when parsing .dwb drawing files. The application fails to properly validate the length of input data embedded in the file, allowing a crafted .dwb file to overwrite critical memory structures. This flaw can be exploited locally by convincing a user to open a malicious file, resulting in arbitrary code execution.
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
| Link | Tags |
|---|---|
| https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/varicad_dwb.rb | exploit |
| https://www.exploit-db.com/exploits/11789 | exploit |
| https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=26522 | third party advisory |
| https://www.seebug.org/vuldb/ssvid-71154 | third party advisory |
| https://www.varicad.com/en/home/ | product |
| https://www.fortiguard.com/encyclopedia/ips/18735 | third party advisory |
| https://www.vulncheck.com/advisories/varicad-en-dwb-file-stack-buffer-overflow | third party advisory |