cve/2010/CVE-2010-20049.md

### [CVE-2010-20049](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-20049)
![](https://img.shields.io/static/v1?label=Product&message=LeapFTP&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=*%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-121%20Stack-based%20Buffer%20Overflow&color=brightgreen)

### Description

LeapFTP < 3.1.x contains a stack-based buffer overflow vulnerability in its FTP client parser. When the client receives a directory listing containing a filename longer than 528 bytes, the application fails to properly bound-check the input and overwrites the Structured Exception Handler (SEH) chain. This allows an attacker operating a malicious FTP server to execute arbitrary code on the victim’s machine when the file is listed or downloaded.

### POC

#### Reference
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/leapftp_list_reply.rb
- https://www.exploit-db.com/exploits/16704
- https://www.vulncheck.com/advisories/leapftp-stack-buffer-overflow

#### Github
No PoCs found on GitHub currently.