Just give gradm learning a try without a prior gradm -E. After you can generate an initial set of rules for your policy, you can start fine-tuning it for some specific applications. -- dr Tóth Attila, Radiológus, 06-20-825-8057 Attila Toth MD, Radiologist, +36-20-825-8057
2014.Február 17.(H) 23:26 időpontban John Tate ezt írta: > BTW, I was supposed to delete the first two lines of that email. > > On Tue, Feb 18, 2014 at 9:25 AM, John Tate <[email protected]> wrote: >> What should that stuff be so gradm works. I tried add >> >> Also the wiki instructs me to issue gradm -E before putting it in >> learning mode. >> >> I've tried adding some lines to the admin role myself but the same >> problem occurs, and gradm can no longer find /dev/grsec.. >> >> role admin sA >> subject / rvka >> / rwcdmlxi >> subject /sbin/gradm >> /etc/grsec rwx >> /dev/grsec rw >> +CAP_DAC_OVERRIDE >> >> It would be good if you could just help me get started by giving >> enough so that gradm -D will work so I can still work on the system >> without a reboot. At this point it is tedious. >> >> Also either the Wiki page is out of date and the advise no longer >> works, or the problem is actually some kernel option I've enabled: >> https://wiki.gentoo.org/wiki/Hardened/Grsecurity2_Quickstart >> >> >> On Tue, Feb 18, 2014 at 7:03 AM, "Tóth Attila" <[email protected]> >> wrote: >>> I think you should not issue gradm -E before activating learning mode. >>> Also make sure to populate your policy with at least some default stuff >>> for the admin role before enabling it. The example policy file gives a >>> starting point. >>> -- >>> dr Tóth Attila, Radiológus, 06-20-825-8057 >>> Attila Toth MD, Radiologist, +36-20-825-8057 >>> >>> 2014.Február 17.(H) 20:29 időpontban John Tate ezt írta: >>>> I am new to grsecurity I am having a problem when I enable RBAC, where >>>> grsecurity denies gradm and certain directories such as /etc/grsec are >>>> inaccessible, and even /dev/grsec. >>>> >>>> gentoo ~ # gradm -E >>>> gentoo ~ # gradm -F -L /etc/grsec/learning.log >>>> Could not open /dev/grsec. >>>> open: Permission denied >>>> >>>> /var/log/messages contains this... >>>> Feb 16 22:40:56 gentoo kernel: [ 659.863486] grsec: From 192.168.0.3: >>>> (default:D:/sbin/gradm) use of CAP_DAC_OVERRIDE denied for >>>> /sbin/gradm[gradm:3315] uid/euid:0/0 gid/egid:0/0, parent >>>> /bin/bash[bash:1876] uid/euid:0/0 gid/egid:0/0 >>>> >>>> CONFIG_GRKERNSEC=y >>>> # CONFIG_GRKERNSEC_CONFIG_AUTO is not set >>>> CONFIG_GRKERNSEC_CONFIG_CUSTOM=y >>>> CONFIG_GRKERNSEC_TPE_UNTRUSTED_GID=101 >>>> CONFIG_GRKERNSEC_KMEM=y >>>> CONFIG_GRKERNSEC_IO=y >>>> CONFIG_GRKERNSEC_PERF_HARDEN=y >>>> CONFIG_GRKERNSEC_RAND_THREADSTACK=y >>>> CONFIG_GRKERNSEC_PROC_MEMMAP=y >>>> CONFIG_GRKERNSEC_BRUTE=y >>>> CONFIG_GRKERNSEC_MODHARDEN=y >>>> CONFIG_GRKERNSEC_HIDESYM=y >>>> CONFIG_GRKERNSEC_KERN_LOCKOUT=y >>>> # CONFIG_GRKERNSEC_NO_RBAC is not set >>>> CONFIG_GRKERNSEC_ACL_HIDEKERN=y >>>> CONFIG_GRKERNSEC_ACL_MAXTRIES=3 >>>> CONFIG_GRKERNSEC_ACL_TIMEOUT=60 >>>> CONFIG_GRKERNSEC_PROC=y >>>> CONFIG_GRKERNSEC_PROC_USER=y >>>> CONFIG_GRKERNSEC_PROC_ADD=y >>>> CONFIG_GRKERNSEC_LINK=y >>>> # CONFIG_GRKERNSEC_SYMLINKOWN is not set >>>> CONFIG_GRKERNSEC_FIFO=y >>>> CONFIG_GRKERNSEC_SYSFS_RESTRICT=y >>>> # CONFIG_GRKERNSEC_ROFS is not set >>>> CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL=y >>>> CONFIG_GRKERNSEC_CHROOT=y >>>> CONFIG_GRKERNSEC_CHROOT_MOUNT=y >>>> CONFIG_GRKERNSEC_CHROOT_DOUBLE=y >>>> CONFIG_GRKERNSEC_CHROOT_PIVOT=y >>>> CONFIG_GRKERNSEC_CHROOT_CHDIR=y >>>> CONFIG_GRKERNSEC_CHROOT_CHMOD=y >>>> CONFIG_GRKERNSEC_CHROOT_FCHDIR=y >>>> CONFIG_GRKERNSEC_CHROOT_MKNOD=y >>>> CONFIG_GRKERNSEC_CHROOT_SHMAT=y >>>> CONFIG_GRKERNSEC_CHROOT_UNIX=y >>>> CONFIG_GRKERNSEC_CHROOT_FINDTASK=y >>>> CONFIG_GRKERNSEC_CHROOT_NICE=y >>>> CONFIG_GRKERNSEC_CHROOT_SYSCTL=y >>>> CONFIG_GRKERNSEC_CHROOT_CAPS=y >>>> CONFIG_GRKERNSEC_AUDIT_GROUP=y >>>> CONFIG_GRKERNSEC_AUDIT_GID=100 >>>> CONFIG_GRKERNSEC_EXECLOG=y >>>> CONFIG_GRKERNSEC_RESLOG=y >>>> CONFIG_GRKERNSEC_CHROOT_EXECLOG=y >>>> CONFIG_GRKERNSEC_AUDIT_PTRACE=y >>>> CONFIG_GRKERNSEC_AUDIT_CHDIR=y >>>> CONFIG_GRKERNSEC_AUDIT_MOUNT=y >>>> CONFIG_GRKERNSEC_SIGNAL=y >>>> CONFIG_GRKERNSEC_FORKFAIL=y >>>> CONFIG_GRKERNSEC_TIME=y >>>> CONFIG_GRKERNSEC_PROC_IPADDR=y >>>> CONFIG_GRKERNSEC_RWXMAP_LOG=y >>>> CONFIG_GRKERNSEC_DMESG=y >>>> CONFIG_GRKERNSEC_HARDEN_PTRACE=y >>>> CONFIG_GRKERNSEC_PTRACE_READEXEC=y >>>> # CONFIG_GRKERNSEC_SETXID is not set >>>> CONFIG_GRKERNSEC_TPE=y >>>> CONFIG_GRKERNSEC_TPE_ALL=y >>>> # CONFIG_GRKERNSEC_TPE_INVERT is not set >>>> CONFIG_GRKERNSEC_TPE_GID=101 >>>> CONFIG_GRKERNSEC_RANDNET=y >>>> CONFIG_GRKERNSEC_BLACKHOLE=y >>>> CONFIG_GRKERNSEC_NO_SIMULT_CONNECT=y >>>> # CONFIG_GRKERNSEC_SOCKET is not set >>>> # CONFIG_GRKERNSEC_DENYUSB is not set >>>> CONFIG_GRKERNSEC_SYSCTL=y >>>> # CONFIG_GRKERNSEC_SYSCTL_DISTRO is not set >>>> CONFIG_GRKERNSEC_SYSCTL_ON=y >>>> # CONFIG_GRKERNSEC_SELINUX_AVC_LOG_IPADDR is not set >>>> CONFIG_GRKERNSEC_FLOODTIME=10 >>>> CONFIG_GRKERNSEC_FLOODBURST=6 >>>> >>>> Help would really be appreciated to get this working, because I'm >>>> quite new to this and I have no idea what I've missed. >>>> >>>> -- >>>> www.johntate.org >>>> >>> >>> >>> >> >> >> >> -- >> www.johntate.org > > > > -- > www.johntate.org > >
