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CVE-2010-20121

CRITICAL

9.8

Description

EasyFTP Server versions up to 1.7.0.11 contain a stack-based buffer overflow vulnerability in the FTP command parser. When processing the CWD (Change Working Directory) command, the server fails to properly validate the length of the input string, allowing attackers to overwrite memory on the stack. This flaw enables remote code execution without authentication, as EasyFTP allows anonymous access by default. The vulnerability was resolved in version 1.7.0.12, after which the product was renamed “UplusFtp.”

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie8/21/2025

Derniere modification9/10/2025

Sourcenvd

Observations honeypot0

Produits affectes

easyftp_server_project:easyftp_server

Faiblesses (CWE)

CWE-121

References

https://paulmakowski.wordpress.com/2010/02/28/increasing-payload-size-w-return-address-overwrite/(disclosure@vulncheck.com)

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/easyftp_cwd_fixret.rb(disclosure@vulncheck.com)

https://seclists.org/bugtraq/2010/Feb/202(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/11668(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/12312(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/14402(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/16737(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/easyftp-server-cwd-command-stack-buffer-overflow(disclosure@vulncheck.com)

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/easyftp_cwd_fixret.rb(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://seclists.org/bugtraq/2010/Feb/202(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.exploit-db.com/exploits/11668(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.exploit-db.com/exploits/12312(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.exploit-db.com/exploits/14402(134c704f-9b21-4f2e-91b3-4a467353bcc0)

https://www.exploit-db.com/exploits/16737(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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