Daily Edition · Page 4

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

RESEARCHERS DISCOVER FIRST UEFI BOOTKIT MALWARE FOR LINUX

Researchers at ESET discovered the first-ever UEFI bootkit (titled Bootkitty) targeting Linux devices when it was uploaded to VirusTotal. Bootkitty hooks UEFI security authentication protocols. It then hooks various GRUB functions to turn off kernel signature verification and intercepts the Linux kernel's decompression process to allow for loading malicious kernel modules. Bootkitty replaces the first environment variable to always load the malicious library at process startup. The bootkit relies on self-signed certificates, specific byte-pattern matching, and hardcoded offsets, so it will only work on specific GRUB and kernel versions. It is still likely in development.

GITFLOPS: THE DANGERS OF TERRAFORM AUTOMATION PLATFORMS

Terraform automation platforms like Atlantis and Terraform Cloud are very popular for creating pull-request based CI/CD workflows. The typical workflow involves opening a pull-request that will trigger a read-only terraform plan which will then be reviewed and can be applied by a more privileged user with a comment. A malicious user can either inject code via the entry point of a malicious provider or through a malicious data source to bypass the read-only protections of terraform plan. This vulnerability has been confirmed on five Terraform automation platforms.

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