Homepage

Link Following The advisory has been revoked - it doesn't affect any version of package proftpd-dfsg  (opens in a new tab)

Threat Intelligence

EPSS
0.44% (36th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2004-PROFTPDDFSG-654369
  • published4 Apr 2017
  • disclosed4 Apr 2017
Report a new vulnerability Found a mistake?

Introduced: 4 Apr 2017

CVE-2017-7418  (opens in a new tab)
CWE-59  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream proftpd-dfsg package and not the proftpd-dfsg package as distributed by Ubuntu.

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.