Xftp FTP Client <= 3.0 PWD Response Buffer Overflow
Vulnerability Description
Xftp FTP Client version up to and including 3.0 (build 0238) contain a stack-based buffer overflow vulnerability triggered by a maliciously crafted PWD response from an FTP server. When the client connects to a server and receives an overly long directory string in response to the PWD command, the client fails to properly validate the length of the input before copying it into a fixed-size buffer. This results in memory corruption and allows remote attackers to execute arbitrary code on the client system.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- zombiefx
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/xftp_client_pwd.rb
- https://www.exploit-db.com/exploits/12332
- https://www.exploit-db.com/exploits/16739
- https://web.archive.org/web/20090312072219/http://www.netsarang.com/download/down_xft3.html
- https://www.vulncheck.com/advisories/xftp-ftp-client-pwd-response-buffer-overflow
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