Re: [CentOS] SIG - Hardening
On 22 April 2015 at 20:49, Mark LaPierre marklap...@gmail.com wrote: On 04/22/15 01:13, Earl A Ramirez wrote: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html These are all wicked good ideas for machines connected to the internet. I hope you also plan on making it easy to turn off these otherwise useful features for systems with no exposure to the internet. Don't make it difficult/impossible to use rsync to back up between machines on the local intranet. Rsync has to run as root to access and maintain correct file ownership and permissions. -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Hello Mark, We understand and recognise that security should not affect the function of a business in our case the operating system, I believe that the goal of the hardening SIG will be to mitigate potential risks that can have significant consequences. Over on the centos-devel list it was mentioned that there will be a separate repo, therefore this means that packages will be created to meet the objectives of the hardening SIG. Currently we are trying to get the SIG approved, therefore, no clear picture has been worked out at this moment; however within a month or so it will be available. -- Kind Regards Earl Ramirez ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
On 22 April 2015 at 20:49, Mark LaPierre marklap...@gmail.com wrote: On 04/22/15 01:13, Earl A Ramirez wrote: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html These are all wicked good ideas for machines connected to the internet. I hope you also plan on making it easy to turn off these otherwise useful features for systems with no exposure to the internet. Don't make it difficult/impossible to use rsync to back up between machines on the local intranet. Rsync has to run as root to access and maintain correct file ownership and permissions. -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Hello Mark, We understand and recognise that security should not affect the function of a business in our case the operating system, I believe that the goal of the hardening SIG will be to mitigate potential risks that can have significant consequences. Over on the centos-devel list it was mentioned that there will be a separate repo, therefore this means that packages will be created to meet the objectives of the hardening SIG. Currently we are trying to get the SIG approved, therefore, no clear picture has been worked out at this moment; however within a month or so it will be available. -- Kind Regards Earl Ramirez ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
The most common way to get root on any box is through the web browser and web browser plugins. sandboxing firefox, acrobat reader, flash-plugin by default has gotta be a priority. Was brought up before. i use a ffSandbox.sh that launches FF in a sandbox, but no longer sandboxes PDFs. Not production ready. Might want to look at porting Qubes-OS to CentOS from Fedora. https://en.wikipedia.org/wiki/Qubes_OS On Thu, Apr 23, 2015 at 12:58 PM, Earl A Ramirez earlarami...@gmail.com wrote: On 22 April 2015 at 20:49, Mark LaPierre marklap...@gmail.com wrote: On 04/22/15 01:13, Earl A Ramirez wrote: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html These are all wicked good ideas for machines connected to the internet. I hope you also plan on making it easy to turn off these otherwise useful features for systems with no exposure to the internet. Don't make it difficult/impossible to use rsync to back up between machines on the local intranet. Rsync has to run as root to access and maintain correct file ownership and permissions. -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Hello Mark, We understand and recognise that security should not affect the function of a business in our case the operating system, I believe that the goal of the hardening SIG will be to mitigate potential risks that can have significant consequences. Over on the centos-devel list it was mentioned that there will be a separate repo, therefore this means that packages will be created to meet the objectives of the hardening SIG. Currently we are trying to get the SIG approved, therefore, no clear picture has been worked out at this moment; however within a month or so it will be available. -- Kind Regards Earl Ramirez ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
Am 23.04.2015 um 02:49 schrieb Mark LaPierre marklap...@gmail.com: On 04/22/15 01:13, Earl A Ramirez wrote: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html These are all wicked good ideas for machines connected to the internet. I hope you also plan on making it easy to turn off these otherwise useful features for systems with no exposure to the internet. Don't make it difficult/impossible to use rsync to back up between machines on the local intranet. Rsync has to run as root to access and maintain correct file ownership and permissions. grep OPTIONS /etc/sysconfig/sshd OPTIONS=-o PermitRootLogin=without-password -- LF ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
On Wed, 2015-04-22 at 10:16 +0200, Tim wrote: I think, this SIG would/should care about hardening CentOS itself as a system not a complete environment (proxies, firewalls, etc.) The examples of the opener show this. Something else could be integrity checking possibly. I imagine a tool/script that could apply hardening stuff. Regards Tim Am 22. April 2015 09:23:52 MESZ, schrieb Eero Volotinen eero.voloti...@iki.fi: Sounds like a bit basic stuff? How about hardening ciphers, two factor authentication, snort, web application firewall and scap scanning? Eero 22.4.2015 10.14 ap. Andrew Holway andrew.hol...@gmail.com kirjoitti: SELinux? On 22 April 2015 at 09:11, John R Pierce pie...@hogranch.com wrote: On 4/21/2015 11:34 PM, Eero Volotinen wrote: apply also ideas from this document: https://benchmarks.cisecurity.org/downloads/show-single/?file=rhel6.130 that should be your baseline. I suspect you'll find all the things you mentioned are discussed in the CIS benchmarks. -- john r pierce, recycling bits in santa cruz CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Thanks for all of your input guys, there were some discussion on the centos-devel list [0], which will give you a better idea of what this SIG will aim to accomplish. We will be happy to see you guys over on the centos-devel list and if possible chip in to make this SIG a success. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013280.html -- Earl A Ramirez earlarami...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
I am very interested. One of my suggestions: Firewall: Network based firewall zone assignment (possibly disabling interface based assignment) Regards Tim Am 22. April 2015 07:13:52 MESZ, schrieb Earl A Ramirez earlarami...@gmail.com: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html -- Earl A Ramirez earlarami...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
apply also ideas from this document: https://benchmarks.cisecurity.org/downloads/show-single/?file=rhel6.130 -- Eero 2015-04-22 9:30 GMT+03:00 Tim li...@kiuni.de: I am very interested. One of my suggestions: Firewall: Network based firewall zone assignment (possibly disabling interface based assignment) Regards Tim Am 22. April 2015 07:13:52 MESZ, schrieb Earl A Ramirez earlarami...@gmail.com: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html -- Earl A Ramirez earlarami...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
On 04/22/15 01:13, Earl A Ramirez wrote: Dear All, About a week ago; I posted a proposal over on the centos-devel mailing list, the proposal is for a SIG 'CentOS hardening', there were a few of the members of the community who are also interested in this. Therefore, I am extending that email to this community; where there is a larger community. Some things that we will like to achieve are as follows: SSH: disable root (uncomment 'PermitRootLogin' and change to no) enable 'strictMode' modify 'MaxAuthTries' modify 'ClientAliveInterval' modify 'ClientAliveCountMax' Gnome: disable Gnome user list Console: Remove reboot, halt poweroff from /etc/security/console.app Applying security best practises from various compliance perspective, e.g. STIG, SOX, PCI etc... We may also use NSA RHEL 5 secure configuration guide to get some insight or use it as a baseline. The members of the community who are interested in this SIG or are willing to contribute are: Leam Hall Corey Henderson Jason Pyeron You can find the post here [0] We will really like to get SIG approved by the CentOS board so if anyone is interested or willing to contribute we will be happy to have you onboard. [0] http://lists.centos.org/pipermail/centos-devel/2015-April/013197.html These are all wicked good ideas for machines connected to the internet. I hope you also plan on making it easy to turn off these otherwise useful features for systems with no exposure to the internet. Don't make it difficult/impossible to use rsync to back up between machines on the local intranet. Rsync has to run as root to access and maintain correct file ownership and permissions. -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
On 4/21/2015 11:34 PM, Eero Volotinen wrote: apply also ideas from this document: https://benchmarks.cisecurity.org/downloads/show-single/?file=rhel6.130 that should be your baseline. I suspect you'll find all the things you mentioned are discussed in the CIS benchmarks. -- john r pierce, recycling bits in santa cruz ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
SELinux? On 22 April 2015 at 09:11, John R Pierce pie...@hogranch.com wrote: On 4/21/2015 11:34 PM, Eero Volotinen wrote: apply also ideas from this document: https://benchmarks.cisecurity.org/downloads/show-single/?file=rhel6.130 that should be your baseline. I suspect you'll find all the things you mentioned are discussed in the CIS benchmarks. -- john r pierce, recycling bits in santa cruz ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
Sounds like a bit basic stuff? How about hardening ciphers, two factor authentication, snort, web application firewall and scap scanning? Eero 22.4.2015 10.14 ap. Andrew Holway andrew.hol...@gmail.com kirjoitti: SELinux? On 22 April 2015 at 09:11, John R Pierce pie...@hogranch.com wrote: On 4/21/2015 11:34 PM, Eero Volotinen wrote: apply also ideas from this document: https://benchmarks.cisecurity.org/downloads/show-single/?file=rhel6.130 that should be your baseline. I suspect you'll find all the things you mentioned are discussed in the CIS benchmarks. -- john r pierce, recycling bits in santa cruz ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SIG - Hardening
I think, this SIG would/should care about hardening CentOS itself as a system not a complete environment (proxies, firewalls, etc.) The examples of the opener show this. Something else could be integrity checking possibly. I imagine a tool/script that could apply hardening stuff. Regards Tim Am 22. April 2015 09:23:52 MESZ, schrieb Eero Volotinen eero.voloti...@iki.fi: Sounds like a bit basic stuff? How about hardening ciphers, two factor authentication, snort, web application firewall and scap scanning? Eero 22.4.2015 10.14 ap. Andrew Holway andrew.hol...@gmail.com kirjoitti: SELinux? On 22 April 2015 at 09:11, John R Pierce pie...@hogranch.com wrote: On 4/21/2015 11:34 PM, Eero Volotinen wrote: apply also ideas from this document: https://benchmarks.cisecurity.org/downloads/show-single/?file=rhel6.130 that should be your baseline. I suspect you'll find all the things you mentioned are discussed in the CIS benchmarks. -- john r pierce, recycling bits in santa cruz ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
