Jerry Dixon

215 Followers
39 Following
20 Posts
CISO @ CrowdStrike -former DHS NCSD/US-CERT Alum & Desert Storm Vet (AATW)
Is anyone following this breach involving the j-actions/changed-files GitHub Action? Seems pretty major, but I'm still trying to figure out exactly what's going on, who's affected, and what people (and how many) are affected. If you can help me get up to speed please DM me on Signal -- DanArs.82, or on Mastodon https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised
Harden-Runner detection: tj-actions/changed-files action is compromised - StepSecurity

tj-actions/changed-files

There's an important vulnerability being disclosed today that allows attackers to massively increase the size of DDoS attacks.

The flaw is being tracked as CVE-2023-44487, a.k.a. "HTTP/2 Rapid Reset Attack." According to Damian Menscher at Google, the attack "works by sending a request and then immediately cancelling it (a feature of HTTP/2). This lets attackers skip waiting for responses, resulting in a more efficient attack."

More info:

https://cloud.google.com/blog/products/identity-security/how-it-works-the-novel-http2-rapid-reset-ddos-attack

https://aws.amazon.com/blogs/security/how-aws-protects-customers-from-ddos-events/

https://aws.amazon.com/security/security-bulletins/AWS-2023-011/

https://www.cloudflare.com/press-releases/2023/cloudflare-helps-discover-new-online-threat-that-led-to-largest-attack-in/

How it works: The novel HTTP/2 ‘Rapid Reset’ DDoS attack | Google Cloud Blog

Learn how the new DDoS attack technique Rapid Reset works, and how to mitigate it

Google Cloud Blog
Fun doc visit today-power goes out comes back quickly then all the Windows machines started updates-took 15 minutes before they were able to view X-rays or access electronic health records - Doc apologizing and then we talked about PC hygiene :) meanwhile waiting room getting full due to delays from the updates - plus entertaining with nurses running to each room to see if there was a machine back up and running …15 minute ripple effect FTW

1Password to begin collection anonymous telemetry (no user/site/vault info) to help measure application performance.

I can appreciate their over-the-top transparency and commitment to not collect actual user data, but making this opt-out versus opt-in is a head scratcher.

Give your users the option to actively opt-in, not an opt-out they will probably never see. @1password

https://blog.1password.com/privacy-preserving-app-telemetry/ #1password

We're changing how we discover and prioritize improvements | 1Password

Learn about a new, privacy-preserving in-app telemetry system that 1Password is trialing with its employees.

1Password Blog
Cisco Talos's latest year in review report: https://blog.talosintelligence.com/talos-year-in-review-2022/
Talos Year in Review 2022

We expect this data-driven story will shed some insight into Cisco’s and the security community’s most notable successes and remaining challenges. As these Year in Review reports continue in the future, we aim to help explain how the threat landscape changes from one year to the next.

Cisco Talos Blog
Sting operation: Nighttime scorpion hunts at Kuwait base so popular with US troops that there’s a waitlist https://www.stripes.com/theaters/middle_east/2022-12-23/kuwait-scorpion-deployment-8508570.html
Sting operation: Nighttime scorpion hunts at Kuwait base so popular with US troops that there’s a waitlist

People stationed at Ali Al Salem have gone on some 100 hunts since the spring. The nighttime journeys into the desert attracted hundreds seeking to bag a scorpion or a camel spider during their tour to Kuwait.

Stars and Stripes

If you’ve recently left #Twitter
for Mastodon... welcome!

Here are some things you should know about security and privacy on Mastodon.

https://grahamcluley.com/mastodon-what-you-need-to-know-for-your-security-and-privacy/

(Please boost/reshare if you think a #TwitterRefugee would benefit from this. Thanks!)

Mastodon: What you need to know for your security and privacy

Mastodon is hot right now. After some years of only being used by geeks (yes, I’ve had an account for a while now) it’s at the tipping point of becoming…

Graham Cluley
Bridging 18y Studying Cyber Risk in Supply Chains| Cyentia Institute

18 years of data and insights about mega multi-party and supply chain risk and cyber incidents covered in IRIS Tsunami.

Cyentia Institute | Data-Driven Cybersecurity Research