CVE-2017-7418: ProFTPD

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

ProFTPD before 1.3.5e and 1.3.6 before 1.3.6rc5 controls whether the home directory of a user could contain a symbolic link through the AllowChrootSymlinks configuration option, but checks only the last path component when enforcing AllowChrootSymlinks. Attackers with local access could bypass the AllowChrootSymlinks control by replacing a path component (other than the last one) with a symbolic link. The threat model includes an attacker who is not granted full filesystem access by a hosting provider, but can reconfigure the home directory of an FTP user.

Affected products

• ProFTPD ProFTPD: up to and including 1.3.5; version 1.3.6 only

Published 2017-04-04. Last modified 2026-06-17.