RHEL 5 : autofs (RHSA-2007:1176)

Medium Nessus Plugin ID 29777


The remote Red Hat host is missing a security update.


Updated autofs packages that fix a security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The autofs utility controls the operation of the automount daemon, which automatically mounts file systems when you use them, and unmounts them when you are not using them. This can include network file systems and CD-ROMs.

There was a security issue with the default configuration of autofs version 5, whereby the entry for the '-hosts' map did not specify the 'nodev' mount option. A local user with control of a remote NFS server could create special device files on the remote file system, that if mounted using the default '-hosts' map, could allow the user to access important system devices. (CVE-2007-6285)

This issue is similar to CVE-2007-5964, which fixed a missing 'nosuid' mount option in autofs. Both the 'nodev' and 'nosuid' options should be enabled to prevent a possible compromise of machine integrity.

Due to the fact that autofs always mounted '-hosts' map entries 'dev' by default, autofs has now been altered to always use the 'nodev' option when mounting from the default '-hosts' map. The 'dev' option must be explicitly given in the master map entry to revert to the old behavior. This change affects only the '-hosts' map which corresponds to the '/net' entry in the default configuration.

All autofs users are advised to upgrade to these updated packages, which resolve this issue.

Red Hat would like to thank Tim Baum for reporting this issue.


Update the affected autofs package.

See Also



Plugin Details

Severity: Medium

ID: 29777

File Name: redhat-RHSA-2007-1176.nasl

Version: $Revision: 1.17 $

Type: local

Agent: unix

Published: 2007/12/24

Modified: 2016/12/29

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.2

Temporal Score: 5.4

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:autofs, cpe:/o:redhat:enterprise_linux:5, cpe:/o:redhat:enterprise_linux:5.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2007/12/20

Reference Information

CVE: CVE-2007-6285

BID: 26970

OSVDB: 40442

RHSA: 2007:1176

CWE: 16