Vulnerability Description
ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attacker can overwrite a hardcoded function pointer in memory (specifically WSACleanup from Ws2_32.dll). This allows the attacker to redirect execution flow and bypass DEP protections using a ROP chain, ultimately leading to arbitrary code execution. The vulnerability is exploitable without authentication and affects default configurations.
Related Weaknesses (CWE)
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exp
- https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/
- https://www.exploit-db.com/exploits/19024
- https://www.exploit-db.com/exploits/19177
- https://www.vulncheck.com/advisories/comsndftp-user-format-string-rce
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exp
- https://www.exploit-db.com/exploits/19024
- https://www.exploit-db.com/exploits/19177
FAQ
What is CVE-2012-10055?
CVE-2012-10055 is a documented vulnerability. ComSndFTP FTP Server version 1.3.7 Beta contains a format string vulnerability in its handling of the USER command. By sending a specially crafted username containing format specifiers, a remote attac...
How severe is CVE-2012-10055?
CVSS scoring is not yet available for CVE-2012-10055. Check NVD for updates.
Is there a patch for CVE-2012-10055?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.