FreeBSD : FreeBSD -- Incorrect privilege validation in the NFS server (e5d2442d-5e76-11e6-a6c3-14dae9d210b8)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

Problem Description :

The kernel incorrectly uses client supplied credentials instead of the
one configured in exports(5) when filling out the anonymous credential
for a NFS export, when -network or -host restrictions are used at the
same time.

Impact :

The remote client may supply privileged credentials (e.g. the root
user) when accessing a file under the NFS share, which will bypass the
normal access checks.

See also :

http://www.nessus.org/u?5337b993

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.4
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N)
CVSS Temporal Score : 4.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 92834 ()

Bugtraq ID: 61484

CVE ID: CVE-2013-4851

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