Are You Protecting Your DevOps Software Factory?

New study highlights insecurities in DevOps toolchain implementations.

A
new study out today
shows that DevSecOps could stand to use a healthier dose of OpSec, as many DevOps tools are left exposed on the public Internet with little to no security controls.
So much of the education about the intersection of DevOps and security focuses on application security testing and secure development practices. But DevSecOps is about more than just securing the software product itself. Its also crucial to protect the factory that produces those applications — namely, the development infrastructure and DevOps toolchain.
Unfortunately, according to a new study conducted by researchers with IntSights, a statistically significant number of DevOps organizations are falling down on that second part of the equation.
Given DevOps tools sit in the cloud, they are more vulnerable to reconnaissance by hackers, says Alon Arvatz, co-founder of IntSights. As opposed to traditional IT tools and servers that are still protected by the company network, a misconfigured DevOps tool will expose its data directly to the Internet, meaning hackers dont need to use any special hacking tools, just simple scanning tools that are available online.
Arvatz and his team examined nearly 26,000 URLs of different DevOps tools and servers from a range of organizations and did a simple test by trying to connect to them through a browser.
No fancy attack tools, or port scanning, or any preliminary data, except for using open OSINT [open source intelligence] tools and websites to create the list, the report explains.
They found that more than 23% of those tested were accessible from the Web, with a range of access levels.
Some were totally exposed without any user/password combination, exposing company data, user lists, internal server names, etc., the report explained. Most were protected with a simple login page, and a minority with a more robust cloud access security broker.
The trouble is that even those tools and servers that did have nominal security controls in place still left enough breadcrumbs and openings to make it easier for attackers to gain entry. For example, many organizations used DevOps tool names for a Web-facing server — such as Jenkins, Kibana, Trello, Jira, and so on. Additionally, most tools dont have built-in multifactor authentication, leaving the security of the system up to a simple username and password combo.
Ideally, many standard technologies and practices of DevOps can be used advantageously for security purposes. For example, the use of infrastructure as code and automation of systems can provide a very efficient means for helping organizations consistently lock down their development and production application infrastructure.
Because we have this infrastructure as code, were getting a lot of reuse, explains Paula Thrasher, director of digital services for General Dynamics, a large federal IT integrator, who says that prior to a DevOps-oriented pipeline, her teams could expect 60% reuse of design patterns and infrastructure. Now that number is pushing 90%. Which basically means 90% of the stuff in our production is a reusable standard, and not a special-snowflake bespoke server. Thats huge, because it just takes down the attack surface.
Of course, on the flip side, that means that one mistake is amplified across an entire organization. As an organization scales, a misconfiguration makes it into every single instance a team fires up rather than just the one in a single insecure bespoke server. So, the stakes are higher.
Arvatz explains that DevOps can do a lot to help raise security posture in an organization and most of the tools involved have the capability to be used securely. But at the same time, organizations need security-conscious administrators in charge.
Some [DevOps] tools do offer inherently higher security in their basic configuration, and most cloud platforms offers robust security defenses, but some tools rely entirely on their operator knowledge and expertise, he says. The general shortage of experienced employees in the DevOps and security fields and the fact that most if not all tools are cloud-based make them prone to human errors.
In addition to renaming DevOps tools on Web-facing servers and implementing multifactor authentication, Arvatz and his team suggest a number of other best practices for these tools. These include using proxy servers, stopping the use of default ports, and meticulously keeping up on the patching of infrastructure. They also suggest blocking access to the servers altogether from the Web when feasible, though they acknowledge that may not always be practical.
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