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CentOS 5 : autofs (CESA-2007:1128)
medium Nessus Plugin ID 43663
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Synopsis
The remote CentOS host is missing a security update.Description
Updated autofs packages are now available to fix a security flaw 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 and unmounts file systems after a period of inactivity.
There was a security issue with the default installed configuration of autofs version 5 whereby the entry for the 'hosts' map did not specify the 'nosuid' mount option. A local user with control of a remote nfs server could create a setuid root executable within an exported filesystem on the remote nfs server that, if mounted using the default hosts map, would allow the user to gain root privileges.
(CVE-2007-5964)
Due to the fact that autofs always mounted hosts map entries suid by default, autofs has now been altered to always use the 'nosuid' option when mounting from the default hosts map. The 'suid' 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.
Users are advised to upgrade to these updated autofs packages, which resolve this issue.
Red Hat would like to thank Josh Lange for reporting this issue.
Solution
Update the affected autofs package.See Also
Plugin Details
Severity: Medium
ID: 43663
File Name: centos_RHSA-2007-1128.nasl
Version: 1.14
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 1/6/2010
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: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.9
Temporal Score: 5.1
Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:autofs, cpe:/o:centos:centos:5
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 12/12/2007
Vulnerability Publication Date: 12/13/2007
Reference Information
CVE: CVE-2007-5964
BID: 26841