CVE-2012-10055

Public Exploit
ComSndFTP v1.3.7 Beta USER Format String RCE

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.

Category

9.3
CVSS
Severity: Critical
CVSS 4.0 •
EPSS 0.41%
Third-Party Advisory vulncheck.com
Affected: ComSndFTP FTP Server
Published at:
Updated at:

References

Link Tags
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/comsnd_ftpd_fmtstr.rb exploit
https://www.exploit-db.com/exploits/19024 exploit
https://www.exploit-db.com/exploits/19177 exploit
https://web.archive.org/web/20120317214524/http://ftp.comsnd.com/ product
https://www.vulncheck.com/advisories/comsndftp-user-format-string-rce third party advisory

Frequently Asked Questions

What is the severity of CVE-2012-10055?
CVE-2012-10055 has been scored as a critical severity vulnerability.
How to fix CVE-2012-10055?
To fix CVE-2012-10055, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-10055 being actively exploited in the wild?
It is possible that CVE-2012-10055 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2012-10055?
CVE-2012-10055 affects ComSndFTP FTP Server.
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