The bootloader configuration module (pyanaconda/bootloader.py) in Anaconda uses 755 permissions for /etc/grub.d, which allows local users to obtain password hashes and conduct brute force password guessing attacks.
git.fedorahosted.org/git/?p=anaconda.git%3Ba=commit%3Bh=03ef13b625cc06873a924e0610340f8489fd92df
lists.fedoraproject.org/pipermail/package-announce/2012-May/080188.html
www.openwall.com/lists/oss-security/2012/05/04/10
www.openwall.com/lists/oss-security/2012/05/04/12
www.openwall.com/lists/oss-security/2024/01/15/3
www.securityfocus.com/bid/53486
bugzilla.redhat.com/show_bug.cgi?id=819031