Yesterday, GitHub announced that it has acquired Semmle, a code analysis platform provider and also that it is now a Common Vulnerabilities and Exposures (CVE) Numbering Authority.
GitHub is now a CVE Numbering Authority (CNA) 🎉
Disclose vulnerabilities, alert developers, and provide updates all from within GitHub. Coming soon!
— GitHub (@github) September 18, 2019
The Semmle acquisition is a part of the plan to securing the open-source supply chain, Nat Friedman explains in his blog post. Semmle provides a code analysis engine, named QL, which allows developers to write queries that identify code patterns in large codebases and search for vulnerabilities and their variants. Security researchers use Semmle to quickly find vulnerabilities in code with simple declarative queries.
“Semmle is trusted by security teams at Uber, NASA, Microsoft, Google, and has helped find thousands of vulnerabilities in some of the largest codebases in the world, as well as over 100 CVEs in open source projects to date,” Friedman writes.
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Semmle originally spun out of research at Oxford in 2006 announced a $21 million Series B investment led by Accel Partners, last year. “In total, the company raised $31 million before this acquisition,” Techcrunch reports.
Shanku Niyogi, Senior Vice President of Product at GitHub, in his blog post writes, “An important measure of the success of Semmle’s approach is the number of vulnerabilities that have been identified and disclosed through their technology. Today, over 100 CVEs in open source projects have been found using Semmle, including high-profile projects like Apache Struts, Apple’s XNU, the Linux Kernel, Memcached, U-Boot, and VLC. No other code analysis tool has a similar success rate.”
GitHub also announced that it has been approved as a CVE Numbering Authority for open source projects. Now, GitHub will be able to issue CVEs for security advisories opened on GitHub, allowing for even broader awareness across the industry.
With Semmle integration, every CVE-ID can be associated with a Semmle QL query, which can then be shared and tracked by the broader developer community. The CVE approval will make it easier for project maintainers to report security flaws directly from their repositories. Also, GitHub can assign CVE identifiers directly and post them to the CVE List and the National Vulnerability Database (NVD).
Earlier this year, GitHub acquired Dependabot, to provide automatic security fixes natively within GitHub. With automatic security fixes, developers no longer need to manually patch their dependencies. When a vulnerability is found in a dependency, GitHub will automatically issue a pull request on downstream repositories with the information needed to accept the patch.
In August, GitHub was in the limelight for being a part of the Capital One data breach that affected 106 million users in the US and Canada. The law firm Tycko & Zavareei LLP filed a lawsuit in California’s federal district court on behalf of their plaintiffs Seth Zielicke and Aimee Aballo.
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Both plaintiffs claimed Capital One and GitHub were unable to protect user’s personal data. The complaint highlighted that Paige A. Thompson, the alleged hacker stole the data in March, posted about the theft on GitHub in April. According to the lawsuit, “As a result of GitHub’s failure to monitor, remove, or otherwise recognize and act upon obviously-hacked data that was displayed, disclosed, and used on or by GitHub and its website, the Personal Information sat on GitHub.com for nearly three months.”
The Semmle acquisition may be GitHub’s move to improve security for users in the future. It would be interesting to know how GitHub will mold security for users with additional CVE approval.
A user on Reddit writes, “I took part in a tutorial session Semmle held at a university CS society event, where we were shown how to use their system to write semantic analysis passes to look for things like use-after-free and null pointer dereferences. It was only an hour and a bit long, but I found the query language powerful & intuitive and the platform pretty effective. At the time, you could set up your codebase to run Semmle passes on pre-commit hooks or CI deployments etc. and get back some pretty smart reporting if you had introduced a bug.”
The user further writes, “The session focused on Java, but a few other languages were supported as first-class, iirc. It felt kinda like writing an SQL query, but over AST rather than tuples in a table, and using modal logic to choose the selections. It took a little while to first get over the ‘wut’ phase (like ‘how do I even express this’), but I imagine that a skilled team, once familiar with the system, could get a lot of value out of Semmle’s QL/semantic analysis, especially for large/enterprise-scale codebases.”
Congrats on @github/@GitHubSecurity becoming a CVE Numbering Authority (#CNA) for ALL things on https://t.co/PKe86BB03u not covered by existing CNA. If you use #opensource/#CVE get ready to drink from the firehose (and other options we'll be discussing on future #osspodcast).
— Kurt Seifried (@kurtseifried) September 18, 2019
If you ever had to submit a CVE you’ll know this is a big deal.
GitHub will be able to make the developer experience of submitting a CVE just a few steps and they could prefill all information needed 🤩 https://t.co/bUrFBEIqhh
— Tim (@timneutkens) September 19, 2019
To know more about this announcement in detail, read GitHub’s official blog post.
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