PT-2010-5369 · Proftpd · Proftpd

Published 2010-11-09 · Updated 2025-08-31 · CVE-2010-4221

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions ProFTPD versions prior to 1.3.3c

Description The issue involves multiple stack-based buffer overflows in the pr netio telnet gets function, allowing remote attackers to execute arbitrary code. This can be achieved by sending vectors involving a TELNET IAC escape character to either an FTP or FTPS server.

Recommendations For versions prior to 1.3.3c, update to version 1.3.3c or later to resolve the issue. As a temporary workaround, consider restricting access to the pr netio telnet gets function until a patch is applied. Avoid using the TELNET IAC escape character in communications with the FTP or FTPS server until the issue is resolved.

Exploit

Fix

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2010-4221

Affected Products

Proftpd

References · 24

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/freebsd/ftp/proftp_telnet_iac.rb · Exploit
• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/ftp/proftp_telnet_iac.rb · Exploit
• 🔥 https://github.com/M41doror/cve-2010-4221 · Exploit
• 🔥 https://github.com/M31MOTH/cve-2010-4221 · Exploit
• 🔥 http://securityfocus.com/bid/44562 · Exploit
• 🔥 https://exploit-db.com/exploits/15449 · Exploit
• 🔥 https://exploit-db.com/exploits/16878 · Exploit
• 🔥 http://bugs.proftpd.org/show_bug.cgi?id=3521 · Exploit
• 🔥 https://exploit-db.com/exploits/16851 · Exploit
• http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050703.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2010-4221 · Security Note
• http://secunia.com/advisories/42052 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050687.html · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050726.html · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2010:227 · Vendor Advisory