Headline
CVE-2011-4339: security - OpenIPMI: IPMI event daemon creates PID file with world writeable permissions
ipmievd (aka the IPMI event daemon) in OpenIPMI, as used in the ipmitool package 1.8.11 in Red Hat Enterprise Linux (RHEL) 6, Debian GNU/Linux, Fedora 16, and other products uses 0666 permissions for its ipmievd.pid PID file, which allows local users to kill arbitrary processes by writing to this file.
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Date: Tue, 13 Dec 2011 09:24:44 +0530 From: Huzaifa Sidhpurwala <huzaifas@…hat.com> To: oss-security@…ts.openwall.com Subject: OpenIPMI: IPMI event daemon creates PID file with world writeable permissions
Hi,
A insecure file permissions flaw was found in the way IPMI event daemon of the OpenIPMI (Intelligent Platform Management Interface) library and tools created its PID file (it was created with 0666 permissions). A local user could use this flaw to kill arbitrary running process during ipmievd service shutdown.
This has been assigned CVE-2011-4339
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=742837
– Huzaifa Sidhpurwala / Red Hat Security Response Team
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