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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-4339
• https://bugzilla.redhat.com/show_bug.cgi?id=742837
• https://exchange.xforce.ibmcloud.com/vulnerabilities/71763
• http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071575.html
• http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071580.html
• http://openwall.com/lists/oss-security/2011/12/13/1
• http://rhn.redhat.com/errata/RHSA-2013-0123.html
• http://secunia.com/advisories/47173
• http://secunia.com/advisories/47228
• http://secunia.com/advisories/47376
• http://www.debian.org/security/2011/dsa-2376
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:196
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.redhat.com/support/errata/RHSA-2011-1814.html
• http://www.securityfocus.com/bid/51036
• http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf