The _UpgradeBeforeConfigurationChange function in lib/client/gnt_cluster.py in Ganeti 2.10.0 before 2.10.7 and 2.11.0 before 2.11.5 uses world-readable permissions for the configuration backup file, which allows local users to obtain SSL keys, remote API credentials, and other sensitive information by reading the file, related to the upgrade command.
git.ganeti.org/?p=ganeti.git%3Ba=commit%3Bh=a89f62e2db9ccf715d64d1a6322474b54d2d9ae0
packetstormsecurity.com/files/127851/Ganeti-Insecure-Archive-Permission.html
seclists.org/oss-sec/2014/q3/370
www.ocert.org/advisories/ocert-2014-006.html
www.securityfocus.com/archive/1/533119/100/0/threaded
www.securityfocus.com/bid/69186
exchange.xforce.ibmcloud.com/vulnerabilities/95256