This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
The kexec-tools package contains the /sbin/kexec binary and utilities
that together form the user-space component of the kernel's kexec
feature. The /sbin/kexec binary facilitates a new kernel to boot using
the kernel's kexec feature either on a normal or a panic reboot. The
kexec fastboot mechanism allows booting a Linux kernel from the
context of an already running kernel.
Kdump used the SSH (Secure Shell) 'StrictHostKeyChecking=no' option
when dumping to SSH targets, causing the target kdump server's SSH
host key not to be checked. This could make it easier for a
man-in-the-middle attacker on the local network to impersonate the
kdump SSH target server and possibly gain access to sensitive
information in the vmcore dumps. (CVE-2011-3588)
The mkdumprd utility created initrd files with world-readable
permissions. A local user could possibly use this flaw to gain access
to sensitive information, such as the private SSH key used to
authenticate to a remote server when kdump was configured to dump to
an SSH target. (CVE-2011-3589)
The mkdumprd utility included unneeded sensitive files (such as all
files from the '/root/.ssh/' directory and the host's private SSH
keys) in the resulting initrd. This could lead to an information leak
when initrd files were previously created with world-readable
permissions. Note: With this update, only the SSH client
configuration, known hosts files, and the SSH key configured via the
newly introduced sshkey option in '/etc/kdump.conf' are included in
the initrd. The default is the key generated when running the 'service
kdump propagate' command, '/root/.ssh/kdump_id_rsa'. (CVE-2011-3590)
This updated kexec-tools package also includes numerous bug fixes and
All users of kexec-tools are advised to upgrade to this updated
package, which resolves these security issues, fixes these bugs and
adds these enhancements.
See also :
Update the affected kexec-tools and / or kexec-tools-debuginfo
Risk factor :
Medium / CVSS Base Score : 5.7
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 61265 ()
CVE ID: CVE-2011-3588
Upgrade to Nessus Professional today!
Start your free Nessus Cloud trial now!
Begin Free Trial
The cookie settings on this website are set to 'allow all cookies' to give you the very best website experience. If you continue without changing these settings, you consent to this - but if you want, you can opt out of all cookies by clicking below.