SYS-CON MEDIA Authors: Zakia Bouachraoui, Liz McMillan, Carmen Gonzalez, Roger Strukhoff, David Linthicum

Blog Feed Post

UPDATE: OpenSolaris ISC Construction Kit v1.3

I have been writing about the Immutable Service Container project for quite some time. Since this project was publicly launched earlier this year, we have produced a number of updates, several presentations and podcasts, as well as images that people could use on Amazon EC2 or with VirtualBox. All of these updates had a singular goal - to highlight what is possible when we refactor our existing strategies and processes to pre-integrate greater security capabilities by default into our operating system configurations. While our original goal was to focus on Cloud Computing and virtual machine image security, these concepts really apply more universally. Whether used in a traditional data center or the Cloud, there are significant benefits that can be realized when we begin to put all of the pieces into place. Certainly, I mean more than just patching or hardening, but looking at virtual machine security more comprehensively.

With this as a backdrop, I am very happy to announce the availability of version 1.3 of the OpenSolaris Immutable Service Container Construction Kit! Prior to this update, the Kit was able to automate the creation of a configuration that included:

  • built upon the OpenSolaris 2009.06 release
  • (optional) loose minimization support to help those building and sharing images
  • security hardening of the operating system - based upon the OpenSolaris Security Hardening project
  • non-executable stack functionality enabled (on systems supporting this functionality)
  • encrypted swap enabled
  • encrypted scratch space enabled - default size is 100 Mbytes (customize as needed)
  • kernel-level auditing enabled - default policy audits login/logouts, administrative events, and all commands executed on the system, audit syslog plugin configured (/var/log/auditlog)
  • stateful packet filtering enabled - packet filtering syslog plugin configured (/var/log/ipflog), in-bound network access denied by default (except SSH), out-bound network access permitted by default (customize as needed)
  • a single non-global zone installed (although others can be installed as needed):
    • gzip compressed non-global zone root file system
    • building upon default non-global zone security capabilities
    • unique VNIC limiting visibility of unintended network traffic
    • encrypted scratch space
    • stateful packet filtering and NAT to restrict network-access
    • in-bound network access denied by default (customize for your service)
    • out-bound network access permitted by default (customize as needed)
    • DNS and auditing configurations inherited from the global zone

The v1.3 update goes beyond this foundation to incorporate new capabilities including:

  • configurable virtual network architecture. Non-global zones can be installed into the same or different virtual networks. This capability is required in order to begin constructing ISC configurations that implement more advanced network compartmentalization configurations. Administrators can define to which network a non-global zone should be attached using the -N option to the iscadm.ksh tool.
  • anti-spoofing protection. Each of the non-global zones are configured to leverage the MAC and IP address anti-spoofing protections enabled by Crossbow 1.3 (builds 126 and newer).
  • default resource controls. Non-global zones are configured to have a maximum lightweight process resource control installed (default: 300). This setting helps to mitigate against the effects of certain denial of service attacks. The actual limit can be adjusted using the ISC_MAX_LWPS parameter.
  • default file system quotas. Non-global zone root file systems are configured to have a specific ZFS quota (default: 1G) and reservation (default: 512M). Since ISC nodes (non-global zones) share a common ZFS data set, it is important to have this restriction to prevent one node from exhausting capacity being used by other nodes. The default values can be changed using the ISC_QUOTA and ISC_RESERVATION parameters.
  • site variable override. A new file (isc/etc/site.conf) is used to store any variables that are specific to a site or implementation. This file is not delivered by default and therefore will not be overwritten upon update (preserving any site-specific parameters). This file is intended to be used to store local (site specific) variables such as those listed above.
In addition to these new features and capabilities, several bugs were squashed and the code was generally cleaned up to make it easier to read and extend in future updates. This update was tested using OpenSolaris 2009.06 as well as OpenSolaris 2010.03 (build 127).

It is worth noting that the OpenSolaris ISC Construction Kit uses a modular architecture. Let's say you did not want all of the functionality described above - you just want to harden an OpenSolaris global zone. Well, that can be easily done using the following steps:

$ env ISC_SVCS_DOCK="lockdown" pfexec isc/bin/iscadm.ksh -d

Similarly, if you just wanted just to try out encrypted scratch space and encrypted swap, you could use the command:

$ env ISC_SVCS_DOCK="encrypted_scratch encrypted_swap" pfexec isc/bin/iscadm.ksh -d

The goal of the Kit is to provide a fast, automated, and easy way to implement strong security protections for your systems and virtual machines, but we also recognize that requirements do differ so customization must be a core part of the software architecture.

As always, we would love to hear from you! Let's us know what works and what doesn't! What would you like to see in a future update? Is there anything that you would like to see changed? Here is your chance - speak up!

Take care!

Technorati Tag:

Read the original blog entry...

More Stories By Glenn Brunette

Glenn Brunette is a Distinguished Engineer and Chief Security Architect at Sun Microsystems. For over 15 years, he has designed and delivered security architectures and solutions supporting a wide array of global customers. Currently, he has focused his efforts on improving security for cloud computing and other highly dynamic and scalable architectures.

Latest Stories
Moroccanoil®, the global leader in oil-infused beauty, is thrilled to announce the NEW Moroccanoil Color Depositing Masks, a collection of dual-benefit hair masks that deposit pure pigments while providing the treatment benefits of a deep conditioning mask. The collection consists of seven curated shades for commitment-free, beautifully-colored hair that looks and feels healthy.
The textured-hair category is inarguably the hottest in the haircare space today. This has been driven by the proliferation of founder brands started by curly and coily consumers and savvy consumers who increasingly want products specifically for their texture type. This trend is underscored by the latest insights from NaturallyCurly's 2018 TextureTrends report, released today. According to the 2018 TextureTrends Report, more than 80 percent of women with curly and coily hair say they purcha...
The textured-hair category is inarguably the hottest in the haircare space today. This has been driven by the proliferation of founder brands started by curly and coily consumers and savvy consumers who increasingly want products specifically for their texture type. This trend is underscored by the latest insights from NaturallyCurly's 2018 TextureTrends report, released today. According to the 2018 TextureTrends Report, more than 80 percent of women with curly and coily hair say they purcha...
We all love the many benefits of natural plant oils, used as a deap treatment before shampooing, at home or at the beach, but is there an all-in-one solution for everyday intensive nutrition and modern styling?I am passionate about the benefits of natural extracts with tried-and-tested results, which I have used to develop my own brand (lemon for its acid ph, wheat germ for its fortifying action…). I wanted a product which combined caring and styling effects, and which could be used after shampo...
Steaz, the nation's top-selling organic and fair trade green-tea-based beverage company, announces its 2017 "Mind. Body. Soul." tour, which will bring authentic experiences inspired by the brand's signature Mind. Body. Soul. tagline to life across the country. The tour will inform, educate, inspire and entertain through events, digital activations and partner-curated experiences developed to support the three pillars of complete health and wellness.
The precious oil is extracted from the seeds of prickly pear cactus plant. After taking out the seeds from the fruits, they are adequately dried and then cold pressed to obtain the oil. Indeed, the prickly seed oil is quite expensive. Well, that is understandable when you consider the fact that the seeds are really tiny and each seed contain only about 5% of oil in it at most, plus the seeds are usually handpicked from the fruits. This means it will take tons of these seeds to produce just one b...
The platform combines the strengths of Singtel's extensive, intelligent network capabilities with Microsoft's cloud expertise to create a unique solution that sets new standards for IoT applications," said Mr Diomedes Kastanis, Head of IoT at Singtel. "Our solution provides speed, transparency and flexibility, paving the way for a more pervasive use of IoT to accelerate enterprises' digitalisation efforts. AI-powered intelligent connectivity over Microsoft Azure will be the fastest connected pat...
There are many examples of disruption in consumer space – Uber disrupting the cab industry, Airbnb disrupting the hospitality industry and so on; but have you wondered who is disrupting support and operations? AISERA helps make businesses and customers successful by offering consumer-like user experience for support and operations. We have built the world’s first AI-driven IT / HR / Cloud / Customer Support and Operations solution.
ScaleMP is presenting at CloudEXPO 2019, held June 24-26 in Santa Clara, and we’d love to see you there. At the conference, we’ll demonstrate how ScaleMP is solving one of the most vexing challenges for cloud — memory cost and limit of scale — and how our innovative vSMP MemoryONE solution provides affordable larger server memory for the private and public cloud. Please visit us at Booth No. 519 to connect with our experts and learn more about vSMP MemoryONE and how it is already serving some of...
Darktrace is the world's leading AI company for cyber security. Created by mathematicians from the University of Cambridge, Darktrace's Enterprise Immune System is the first non-consumer application of machine learning to work at scale, across all network types, from physical, virtualized, and cloud, through to IoT and industrial control systems. Installed as a self-configuring cyber defense platform, Darktrace continuously learns what is ‘normal' for all devices and users, updating its understa...
Codete accelerates their clients growth through technological expertise and experience. Codite team works with organizations to meet the challenges that digitalization presents. Their clients include digital start-ups as well as established enterprises in the IT industry. To stay competitive in a highly innovative IT industry, strong R&D departments and bold spin-off initiatives is a must. Codete Data Science and Software Architects teams help corporate clients to stay up to date with the mod...
As you know, enterprise IT conversation over the past year have often centered upon the open-source Kubernetes container orchestration system. In fact, Kubernetes has emerged as the key technology -- and even primary platform -- of cloud migrations for a wide variety of organizations. Kubernetes is critical to forward-looking enterprises that continue to push their IT infrastructures toward maximum functionality, scalability, and flexibility. As they do so, IT professionals are also embr...
Platform9, the leader in SaaS-managed hybrid cloud, has announced it will present five sessions at four upcoming industry conferences in June: BCS in London, DevOpsCon in Berlin, HPE Discover and Cloud Computing Expo 2019.
At CloudEXPO Silicon Valley, June 24-26, 2019, Digital Transformation (DX) is a major focus with expanded DevOpsSUMMIT and FinTechEXPO programs within the DXWorldEXPO agenda. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive over the long term. A total of 88% of Fortune 500 companies from a generation ago are now out of business. Only 12% still survive. Similar percentages are found throug...
When you're operating multiple services in production, building out forensics tools such as monitoring and observability becomes essential. Unfortunately, it is a real challenge balancing priorities between building new features and tools to help pinpoint root causes. Linkerd provides many of the tools you need to tame the chaos of operating microservices in a cloud native world. Because Linkerd is a transparent proxy that runs alongside your application, there are no code changes required. I...