boom!!! gentoo rsync server hacked...
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Re: boom!!! gentoo rsync server hacked...
май се оказа просто бъг в rsyncd
Summary:
exploitable heap overflow in rsync
Severity:
high
Exploit Type:
remote
Common Vulnerabilities and Exposures (CVE):
None
Description
Rsync version 2.5.6 contains a vulnerability that can be used to run arbitrary code. The Gentoo infrastructure team has some reasonably good forensic evidence that this exploit may have been used in combination with the Linux kernel brk vulnerability (see GLSA 200312-02) to exploit a rsync.gentoo.org rotation server (see GLSA-200312-01.)
Please see [линк] for the security advisory released by the rsync development team.
Solution
To address this vulnerability, all Gentoo users should:
Read GLSA-200312-02 and ensure that all systems are upgraded to a version of the Linux kernel without the brk vulnerability
Upgrade to version 2.5.7 of rsync. This can be done by typing emerge sync; emerge >=net-misc/rsync-2.5.7
Review your /etc/rsync/rsyncd.conf configuration file; ensure that the use chroot="no" command is commented out or removed, or change use chroot="no" to use chroot="yes". Then, if necessary, restart rsyncd by typing /etc/init.d/rsyncd restart
цялата статия
~~~~~~~ Surfing on sine waves ~~~~~~~
Summary:
exploitable heap overflow in rsync
Severity:
high
Exploit Type:
remote
Common Vulnerabilities and Exposures (CVE):
None
Description
Rsync version 2.5.6 contains a vulnerability that can be used to run arbitrary code. The Gentoo infrastructure team has some reasonably good forensic evidence that this exploit may have been used in combination with the Linux kernel brk vulnerability (see GLSA 200312-02) to exploit a rsync.gentoo.org rotation server (see GLSA-200312-01.)
Please see [линк] for the security advisory released by the rsync development team.
Solution
To address this vulnerability, all Gentoo users should:
Read GLSA-200312-02 and ensure that all systems are upgraded to a version of the Linux kernel without the brk vulnerability
Upgrade to version 2.5.7 of rsync. This can be done by typing emerge sync; emerge >=net-misc/rsync-2.5.7
Review your /etc/rsync/rsyncd.conf configuration file; ensure that the use chroot="no" command is commented out or removed, or change use chroot="no" to use chroot="yes". Then, if necessary, restart rsyncd by typing /etc/init.d/rsyncd restart
цялата статия
~~~~~~~ Surfing on sine waves ~~~~~~~