First published: Tue Apr 04 2017(Updated: )
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.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Proftpd Proftpd | <=1.3.5 | |
Proftpd Proftpd | =1.3.6 | |
Proftpd Proftpd | =1.3.6-rc1 | |
Proftpd Proftpd | =1.3.6-rc2 | |
Proftpd Proftpd | =1.3.6-rc3 | |
Proftpd Proftpd | =1.3.6-rc4 |
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