scap-security-guide September 2013

scap-security-guide@lists.fedorahosted.org

31 participants
120 discussions

Fishing with Gnome's
by Stuart Green 25 Oct '13

25 Oct '13

Hey All, Has there been any previous discussion on the Gnome checks? We run headless installations here so none of the checks are applicable to us, but the XCCDF raises fails. I'm not sure if its possible to add a check to see if x sessions are enabled perhaps? Cheers Stu

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scap-security-guide v0.1-12 released
by Shawn Wells 24 Oct '13

24 Oct '13

On 2-MAY the SSG v0.1-11 update was released, reflecting the inclusion of DISA FSO feedback on the (then) Draft RHEL6 STIG and several OVAL improvements. It was a huge milestone, driving us over 1,800 unique code commits! We've since had an additional 88 commits, largely around OVAL content cleanup and the rewrite of combinefixes.py to handle parameters for OpenSCAP remediation generation (thanks, Jeff!). User feedback also prompted us to fix the build system when compiling on Fedora 18+ and the upcoming RHEL release. SSG v0.1-12 has been released to the EPEL repository to reflect these recent bugfixes and enhancements. Download instructions available on the wiki: https://fedorahosted.org/scap-security-guide/wiki/downloads CHANGELOG: > $ git log --oneline --after={2013-05-02} --no-merges > fe2a0b6 Some corrections to the PAM cracklib guidance as follows: > corrected pam_cracklib.so line to include all discussed parame > 532aeb8 Modified the DoD banner check to accept either a newline or > space between each word, as the RHEL5 version does. This al > ded2ef4 Created remediation template: create_services_disabled.py - > Based off OVAL services file > a96cdc3 Added sysctl remediation scripts - Updated template to reflect > proper naming of sysctl scripts > c3355eb Added bash templates directory, added sample sysctl script - > Makefile based off OVAL, same usage - CVS files point to > f75ad8d Module is freevxfs, not freevsfs > cd940ef Fix build of OpenStack and RHEVM3 parts on Fedora 18+ > df19413 Fix build on Fedora 18+ and the upcoming RHEL release > 2ddbbb7 Subexpression datatype shall equal to the variable datatype > 4cd7650 Ok, to fix the "error" doing an evaluation for the various > umask checks, changed the following variables referenced in t > 5fa190d changed a typo var_acocunts_umask_bashrc => > var_accounts_umask_bashrc > 7d772db Update from deprecated rpmverify_* to rpmverifyfile_* checks > 2026606 made xccdf-addfixes insert all text and child nodes of a fix > d6703f4 rewrite of combinefixes.py to handle parameters for OpenSCAP > remedation generation > c13fafa incomplete support file for bash remediations * does at least > warn when undefined variable exists > f87d817 example remediation script which takes a parameter > 24f2c2e Removing deprecated recurse="files" behavior > f078b8f Removing deprecated recurse=files behavior. > b12d669 Replacing deprecated <ind:environmentvariable_...> tags with > <ind:environmentvariable58_...> tags > 5ed6dc2 Created OVAL for ensure_gpgcheck_never_disabled XCCDF rule > called nonexisting OVAL, created it. > 0d69487 Renaming oval check no_rsh_trusted_host_files to > no_rsh_trust_files to match rule ID > 295184c Adding check for no_netrc_files > e1aede3 Adding check for pam_lastlog.so > 9c21556 additional copy editing > 3fd9f3f copy editing > 9db6e3d Renaming oval check no_rsh_trusted_host_files to > no_rsh_trust_files to match rule ID > 4109078 Adding check for no_netrc_files > 6f31c05 Adding check for pam_lastlog.so > 0e15e2d Adding check for disabling GNOME thumbnailers in gconf > d10f08e modified makefile to remove test attestation from prose guide > -- revised > 4f3ea5f corrections for typos in OVAL references > d50c71b removal of references to nonexistent OVAL for some NFS guidance > 980f686 refine verify-references to deal only with OVAL compliance > checks for OVAL > 6051ea6 removal of comments, reference to nonexistent OVAL > 8251580 removal or correction of misnamed or obsolete OVAL checks > 76e93ef removal of packages from check templates > 69f31e0 Added backslash escapes to the warning texts to fix the RegEx, > replaced line breaks with newlines, and added some m > c22ed9c Added backslash escapes to the warning texts to fix the RegEx, > replaced line breaks with newlines, and added some more f > c58ac2b Fixing indenting for external variable line. > 95d5a4b removal of unused OVAL checks > bcc1495 bugfixes for undisciplined renaming jaunt, missing OVAL references > 9a378b9 removal of unused OVAL checks > 3b82cf5 deletion of unused OVAL checks > 6a89088 removal of commented text, some redundant/unnecessary Rules > from Profiles > 9705192 deletion of unused/obsoleted OVAL checks (and commented out XCCDF) > 36a75ec deletion of unused OVAL checks > 48e9900 removal of unnecessary guidance from SSL section > 7682f9c removal of commented/obsolete text from logging section > a1f2d30 removal of commented text, invalid CCE from root logins guidance > 0a3577b update to NFS section (still perhaps incomplete) > 1a3d854 changed Dovecot Rule to Group as it is guidance and not a > compliance check > fb4a29b removal of commented/obsolete items for base services > 9a228d5 updates to the CCE verification script to be more informative > ff25fc9 cleanup of comments, unnecessary Rules in DNS (bind) service > 7a16cda Deleting duplicate check for disabling IPv6 > d9d1741 Minor typo, removing slash at end of description > 330258c added version info for RHEL, URL for project > f36ecf3 removed some now-obsolete advice from samba > 8d5ee52 added some clarifying text to the intro > 6c9f047 removing some unnecessary (for compliance-focus) text from cups > de705e9 Updated service_tftpd_disabled As reflected from update to > template file > 356405f Removed duplicate references to var_samba_private_directory > Updated OVAL to have unique IDs > 034b8b3 Removed duplicate references object_etc_skel_files Updated > OVAL to have unique names > d609d6b Removed duplicate var_ssh_config_directory references Updated > OVAL to have unique names > 8a7a3f3 Removed duplicate state_uid_root Updated OVAL to have unique names > e421d69 Modified template_OVAL_package_installed and > template_package_removed These files were causing build errors > regarding ob > 1ae4c30 Removed duplicate references to var_accounts_user_umask > Assigned unique identifiers > ea10f13 Removed duplicate references to object_lib_modules_files > Assigned unique identifiers > 882e341 Removed duplicate object_usr_lib64_files references Assigned > unique identifiers within OVAL > 9d89e61 Removed duplicate object_usr_lib64_dir references Assigned > unique identifiers in OVAL > 863aa19 Removed duplicate object_usr_lib_files references Assigned > unique identifiers to OVAL checks > 714c3c1 Removed duplicate object_usr_lib_dir Updated OVAL to have > unique names > dffd29b Removed duplicates of object_lib64_files Updated OVAL to have > unique names > bc6fbcd Removed duplicate object_lib64_dir Updated OVAL checks to have > unique names > fe089dc Removed duplicate object_lib_files Updated OVAL checks for > unique names > 7546f2e Removed duplicate object_lib_dir references Created unique > names in the OVAL templates > b376e27 Updated mount_option_* OVAL variable var_removable_partition > These OVAL files were using duplicate 'var_remove_partition > 7fae707 Updated template_permissions to place FILEID into strings > e31dc7b Updated state_gid_0 to reflect per check naming > 07380c0 Updated state_uid_0 names within OVAL Multiple OVAL checks > were using "state_uid_0" causing build errors. Updated so eve > f5b90ce Updated rpm_verify_hashes for OVAL 5.10 compliance The old > rpmverify_* is now depricated, updated check to rpmverifyfile > e3b5697 modified transform to only match test attestation > 02a19e2 transform designed to remove the 'tested by' information > a330ccf deleting files for imprecise and obsolete OVAL checks, manual > remediation > ca71cde simplification of Postfix service configuration > 14397cd Removing a newline to fix XHTML formatting > 7d1ab28 deletion of manual audit profile, OVAL for obsolete ldap > server checks > d7f3ca4 removed obsolete LDAP guidance, checks

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Fun with limits.conf
by Frank Caviggia 05 Oct '13

05 Oct '13

All, Most of the guidance for RHEL security has suggested setting the following in /etc/security/limits.conf: * hard core 0 I have generally set this to: * - core 0 Because this sets both the hard and soft limits on the system. Most SCAP scanners are looking for very specific values there. I'm looking at modifying the checks to pass either 'hard' or '-' for the value. I'd also to fix the maxlogins in the rule (*max_concurrent_login_sessions*) in /etc/security/limits.conf to look for the DOD default (10) and lower to satisfy the check. Security standards are there as a baseline, why 'fail' the setting for exceeding the baseline value? Regards, Frank Caviggia -- Frank Caviggia Consultant, Public Sector fcaviggi(a)redhat.com (M) (571) 295-4560

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scan question
by Kordell, Luke T 03 Oct '13

03 Oct '13

Hello,. I recently downloaded the SCAP source code and noticed there were some additional profiles listed in the profiles folder. How can I run a scan against these profiles? For instance wen trying to run a scan against the usgcb-rhel6-server.xml (after successfully using oscap xccdf validate) I get an "unknown document type" error. I think this is because I'm using the stig profile and the ssg cpe dictionary. If so how can I add a usgcb profile and cpe dictionary to successfully scan against this profile? Thank you for the help. Luke Kordell

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[PATCH] XCCDF: using value references in rule description for RHEL6 content
by Rui Pedro Bernardino 02 Oct '13

02 Oct '13

2 1

[PATCH] *** SUBJECT HERE ***
by Frank Caviggia 02 Oct '13

02 Oct '13

From: Frank Caviggia <fcaviggi(a)ra.iad.redhat.com> *** BLURB HERE *** Frank Caviggia (1): Added checks for 'hard' or '-' for checks in /etc/security/limits.conf RHEL6/input/checks/accounts_max_concurrent_login_sessions.xml | 2 +- RHEL6/input/checks/disable_users_coredumps.xml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) -- 1.8.3.1

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request for help creating new oval: file_ownership_binary_dirs
by Shawn Wells 30 Sep '13

30 Sep '13

I'm attempting to create an OVAL check for file_ownership_binary_dirs, which will check various files for root ownership. I can't get the check to pass, though I verified I've no non-root owned files. I've defined a number of tests, e.g.: > <unix:file_test check="all" check_existence="all_exist" > comment="/bin files owned by root" id="test_ownership_bin_files" > version="1"> > <unix:object object_ref="object_root_ownership_bin_files" /> > <unix:state state_ref="state_root_ownership" /> > </unix:file_test> > > <unix:file_object comment="/bin files" > id="object_root_ownership_bin_files" version="1"> > <unix:behaviors recurse="symlinks and directories" > recurse_direction="down" max_depth="-1" recurse_file_system="all" /> > <unix:path operation="equals">/bin</unix:path> > <unix:filename operation="pattern match">^.*$</unix:filename> > <filter action="exclude">state_symlink</filter> > </unix:file_object> And the state_root_ownership: > > <unix:file_state id="state_root_ownership" version="1"> > <unix:user_id datatype="int">0</unix:user_id> > </unix:file_state> I've also tried using a filter, versus a state_ref in the file_test: > <unix:file_test check="all" check_existence="all_exist" > comment="/bin files go-w" id="test_ownership_bin_files" version="1"> > <unix:object object_ref="object_root_ownership_bin_files" /> > </unix:file_test> > > <unix:file_object comment="/bin files" > id="object_root_ownership_bin_files" version="1"> > <unix:behaviors recurse="symlinks and directories" > recurse_direction="down" max_depth="-1" recurse_file_system="all" /> > <unix:path operation="equals">/bin</unix:path> > <unix:filename operation="pattern match">^.*$</unix:filename> > <filter action="exclude">state_symlink</filter> > <filter action="exclude">state_root_ownership</filter> > </unix:file_object> Any ideas on where I'm going wrong? Thanks!

2 2

Signed vs unsigned?
by leam hall 30 Sep '13

30 Sep '13

Humor for the day. If I enable gpgcheck on the epel-scap-security-guide repo it fails to install: Package scap-security-guide-0.1-12.el6.noarch.rpm is not signed If I don't, then the box gets dinged by the tool. :) Leam -- Mind on a Mission <http://leamhall.blogspot.com/>

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Frank Caviggia - Reporting for Duty (SCAP-SECURITY-GUIDE)
by Frank Caviggia 30 Sep '13

30 Sep '13

Hello, I recently joined Red Hat as a consultant after eight years with Lockheed Martin where I supported customers in DoD, DOE, and IC as System Administrator/Engineer on Linux (particularly Red Hat), Solaris, and AIX. In the past, sharing code with Red Hat was rather difficult due to the legal requirements that Lockheed management placed on me (I felt like Indiana Jones at the end of Raiders of the Lost Ark - where my code was sent away to be reviewed by "Top Experts", after which it was filed away in a envelope and forgotten.) I have a ton of scripting experience (particularly in BASH and Python) that I've used to create and integrate into hardening scripts that I've used at various customer sites. I'm looking forward to contributing this knowledge to the scap-security-guide, particularly in some of the remediation scripts and utilities that will help automate and prepare systems for C&A (DIACAP and ICD503 processes) required by our government customers. If you have any questions, please feel free to reach out to me - my personal cell phone is (575) 496-1206 and my email is fcaviggi(a)redhat.com I'm looking forward to writing some code and actually being able to have it make an impact on the project. Regards, Frank Caviggia Consultant Red Hat

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[PATCH] XCCDF Profile Cleanup, take 2 (now with correct patch)
by Shawn Wells 29 Sep '13

29 Sep '13

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scap-security-guide September 2013