CVE-2010-20122: Stack Overflow

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.

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Weakness Type (CWE)

CWE-121 CWE-121

References

Other References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/xftp_client_pwd.rb https://web.archive.org/web/20090312072219/http://www.netsarang.com/download/down_xft3.html https://www.exploit-db.com/exploits/12332 https://www.exploit-db.com/exploits/16739 https://www.vulncheck.com/advisories/xftp-ftp-client-pwd-response-buffer-overflow

Frequently Asked Questions

What is CVE-2010-20122? +

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.

How do I check if I'm vulnerable to CVE-2010-20122? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2010-20122