Detections
Analytics
CentOS 4 : autofs5 (CESA-2007:1177)
medium Nessus Plugin ID 29754
Synopsis
The remote CentOS host is missing a security update.Description
Updated autofs5 technology preview packages that fix a security issue are now available for Red Hat Enterprise Linux 4.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. The autofs5 packages were made available as a technology preview in Red Hat Enterprise Linux 4.6.
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 autofs5 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.
Solution
Update the affected autofs5 package.See Also
http://www.nessus.org/u?045c42fb
Plugin Details
Severity: Medium
ID: 29754
File Name: centos_RHSA-2007-1177.nasl
Version: 1.17
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 12/24/2007
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 6.2
Temporal Score: 4.6
Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:centos:centos:4, p-cpe:/a:centos:centos:autofs5
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 12/21/2007
Vulnerability Publication Date: 12/20/2007
Reference Information
CVE: CVE-2007-6285
BID: 26970