Cybertrion Systems

[2/5] rsync Two Security Bypass Vulnerabilities

November 30th, 2007 by
[2/5] rsync Two Security Bypass Vulnerabilities

:Two vulnerabilities have been reported in rsync, which can be exploited by malicious users to bypass certain security restrictions.1) An error in the rsync daemon when the "use chroot" option is disabled can be exploited to gain access to files outside of the module’s hierarchy via symlink attacks.2) An error exists within the enforcing of the "exclude", "exclude from", and "filter" options. This can be exploited to bypass access restrictions and gain access to hidden files via e.g. symlink attacks, if the filename is known.The vulnerabilities are reported in version 2.6.9. Prior versions may also be affected.Solution:Apply vendor patch.http://rsync.samba.org/ftp/rsync/munge-symlinks-2.6.9.diffThe vendor recommends users to read the "munge symlinks" section contained within the updated rsyncd.conf manpage.Provided and/or discovered by:Reported by the vendor.Original Advisory:http://rsync.samba.org/security.html

Original post by manisha

[2/5] rsync Two Security Bypass Vulnerabilities

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