|Category:||Red Hat Local Security Checks|
|Title:||RedHat Security Advisory RHSA-2007:1177|
The remote host is missing updates announced in
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
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
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.
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date
Risk factor : High
Common Vulnerability Exposure (CVE) ID: CVE-2007-6285|
BugTraq ID: 26970
RedHat Security Advisories: RHSA-2007:1176
RedHat Security Advisories: RHSA-2007:1177
XForce ISS Database: autofs-hostsmap-weak-securtiy(39188)
Common Vulnerability Exposure (CVE) ID: CVE-2007-5964
BugTraq ID: 26841
|Copyright||Copyright (c) 2007 E-Soft Inc. http://www.securityspace.com|
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