FreeBSD : FreeBSD -- ftpd privilege escalation via ftpchroot feature (6d334fdb-f7e7-11ea-88f8-901b0ef719ab)

High Nessus Plugin ID 140628

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

A ftpd(8) bug in the implementation of the file system sandbox, combined with capabilities available to an authenticated FTP user, can be used to escape the file system restriction configured in ftpchroot(5). Moreover, the bug allows a malicious client to gain root privileges. Impact : A malicious FTP user can gain privileged access to an affected system.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?0af43b95

Plugin Details

Severity: High

ID: 140628

File Name: freebsd_pkg_6d334fdbf7e711ea88f8901b0ef719ab.nasl

Version: 1.2

Type: local

Published: 2020/09/17

Updated: 2021/01/08

Dependencies: 12634

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:FreeBSD, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info, Settings/ParanoidReport

Patch Publication Date: 2020/09/16

Vulnerability Publication Date: 2020/09/15

Reference Information

CVE: CVE-2020-7468

FreeBSD: SA-20:30.ftpd

IAVA: 2021-A-0008