#git

The classic builder cache system is prone to cache poisoning if the image is built `FROM scratch`. Also, changes to some instructions (most important being `HEALTHCHECK` and `ONBUILD`) would not cause a cache miss. An attacker with the knowledge of the Dockerfile someone is using could poison their cache by making them pull a specially crafted image that would be considered as a valid cache candidate for some build steps. For example, an attacker could create an image that is considered as a valid cache candidate for: ``` FROM scratch MAINTAINER Pawel ``` when in fact the malicious image used as a cache would be an image built from a different Dockerfile. In the second case, the attacker could for example substitute a different `HEALTCHECK` command. ### Impact 23.0+ users are only affected if they explicitly opted out of Buildkit (`DOCKER_BUILDKIT=0` environment variable) or are using the `/build` API endpoint (which uses the classic builder by default). All users on versions ...

### Summary When someone creates an access key, it inherits the permissions of the parent key. Not only for `s3:*` actions, but also `admin:*` actions. Which means unless somewhere above in the access-key hierarchy, the `admin` rights are denied, access keys will be able to simply override their own `s3` permissions to something more permissive. Credit to @xSke for sort of accidentally discovering this. I only understood the implications. ### Details / PoC We spun up the latest version of minio in a docker container and signed in to the admin UI using the minio root user. We created two buckets, `public` and `private` and created an access key called `mycat` and attached the following policy to only allow access to the bucket called `public`. ```json { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "s3:*" ], "Resource": [ "arn:aws:s3:::public", "arn:aws:s3:::public/*" ] } ] } ``` We then set an alias in mc: `mcli ali...

A loose coalition of anti-censorship voices is working to highlight reports of one Indian company’s hacker-for-hire past—and the legal threats aimed at making them disappear.

Watch out for malicious ads tricking you as you prepare to file your taxes.

Hello everyone! It has been 3 months since the last episode. I spent most of this time improving my Vulristics project. So in this episode, let’s take a look at what’s been done. Alternative video link (for Russia): https://vk.com/video-149273431_456239139 Also, let’s take a look at the Microsoft Patch Tuesdays vulnerabilities, Linux Patch Wednesdays vulnerabilities and […]

By Deeba Ahmed Ripple’s co-founder Chris Larsen has acknowledged that his personal XRP wallet was hacked. This is a post from HackRead.com Read the original post: Ripple Co-Founder’s Personal XRP Wallet Breached in $112 Million Hack

The U.S. government on Wednesday said it took steps to neutralize a botnet comprising hundreds of U.S.-based small office and home office (SOHO) routers hijacked by a China-linked state-sponsored threat actor called Volt Typhoon and blunt the impact posed by the hacking campaign. The existence of the botnet, dubbed KV-botnet, was first disclosed by the Black Lotus Labs team at

Cybersecurity researchers have detailed an updated version of the malware HeadCrab that's known to target Redis database servers across the world since early September 2021. The development, which comes exactly a year after the malware was first publicly disclosed by Aqua, is a sign that the financially-motivated threat actor behind the campaign is actively adapting and

Cross-Site Request Forgery (CSRF) vulnerability in livewire before v3.0.4, allows remote attackers to execute arbitrary code getCsrfToken function.

Google-owned Mandiant said it identified new malware employed by a China-nexus espionage threat actor known as UNC5221 and other threat groups during post-exploitation activity targeting Ivanti Connect Secure VPN and Policy Secure devices. This includes custom web shells such as BUSHWALK, CHAINLINE, FRAMESTING, and a variant of LIGHTWIRE. "CHAINLINE is a Python web shell backdoor that is