Unrated severityNVD Advisory· Published Aug 20, 2025· Updated Apr 7, 2026
ProFTPD 1.3.3c Backdoor Command Execution
CVE-2010-20103
Description
A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.
Affected products
2- ProFTPD Project/ProFTPD (Professional FTP Daemon)v5Range: 1.3.3c
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rbmitreexploit
- www.exploit-db.com/exploits/15662mitreexploit
- www.exploit-db.com/exploits/16921mitreexploit
- advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/mitrethird-party-advisory
- web.archive.org/web/20111107212129/http://rsync.proftpd.org/mitrevendor-advisorypatch
- www.vulncheck.com/advisories/proftpd-backdoor-command-executionmitrethird-party-advisory
- www.proftpd.orgmitreproduct
News mentions
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