FreeBSD : proftpd -- user chroot escape vulnerability (770d7e91-72af-11e7-998a-08606e47f965)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

NVD reports :

ProFTPD ... 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.

See also :

http://bugs.proftpd.org/show_bug.cgi?id=4295
http://www.nessus.org/u?50a4d80d

Solution :

Update the affected package.

Risk factor :

Low / CVSS Base Score : 2.1
(CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:N)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 102030 ()

Bugtraq ID:

CVE ID: CVE-2017-7418

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