thesamesam

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.

Background

tcaptan-cr

Intersection Observer Scroll Margin Explainer

Intersection Observer scrollMargin allows developers to observe targets inside nested scroll containers that are currently clipped away by the scroll containers. This is achieved by expanding the container's clipping rect by the scrollMargin when calculating the intersection.

Intersection Observer Scroll Margin Specification

Problem

osy

TPM provides zero practical security

TPM (Trusted Platform Module) is as useful for preventing real attackers as the TSA is at preventing real terrorists. The architecture is fundamentally flawed and most existing implementations are completely broken. I thought this argument was settled decades ago[1] when "trusted computing" was introduced mostly as a way to provide DRM and ownership capabilities to organizations. It has largely failed to impact the consumer market when it was introduced back in the early 2000s. However, recently there seems to be a movement by certain parties to reintroduce this failed product back to the market. Microsoft argues that in order to use Windows 11, you need TPM 2.0 compatible hardware because[2]:

The Trusted Platform Module(TPM) requirement ena

MaxwellDupre

#!/usr/bin/env bash
set -euo pipefail

## Defaults
keepGensDef=30; keepDaysDef=30
keepGens=$keepGensDef; keepDays=$keepDaysDef

## Usage
usage () {
    printf "Usage:\n\t ./trim-generations.sh <keep-gernerations> <keep-days> <profile> \n\n

chowder

Background

Workplaces may enforce TOTP 2FA to be enabled Office 365 accounts, which require the Microsoft Authenticator app to be installed.

Regular TOTP applications (such as Aegis, Authy, or LastPass) cannot be used as Microsoft uses a proprietary scheme called phonefactor. Furthermore, the application requires Google Services Framework (GSF) to be installed (likely to provide device notifications), and will refuse to work when it is not present on the device.

Forunately, after the registration is complete, the underlying mechanism the app uses to generate TOTP codes is regular otpauth, and its secrets can be exported with a little bit of effort.

Extracting the keys

makamys

List of "Essential" 1.7.10 Mods

This is a list of Minecraft 1.7.10 mods that are not focused on adding new original content. Instead, they make the base game run better, or port over features from other versions of vanilla.

These lists try to comprehensively list all the available options. You will not want to use all of the listed mods at once.

Some of the listed mods require a Mixin bootstrap mod in order to work. See the Mixin mods section near the end of the document for information about that.

Table of Contents

FrankHB

缘起

因为 Bilibili 莫名其妙吃回复，那就在这里存档。

原始内容见这里。

如无另行指定，默认回复 @LanceMoe。

预备 +TODO 改换文体，+FAQ 。

fricklerhandwerk

Summer of Nix 2022: The Nix Book

tl;dr

Goals

• Improve the autodidactic Nix onboarding experience to increase community growth
• Provide a clear learning path from first impression down to source code

Tasks

reveng007

TL'DR:

---

1. strace : sytemcall tracer : Traces system call summoned by a process from syscall table

System calls, Eg:

open syscall (__NR_open),
kill syscall (__NR_kill), 
getdents64 syscall (__NR_getdents64), 

tgamblin

#!/usr/bin/env spack-python

import os
import tempfile

import spack.patch
import spack.repo
import spack.util.crypto
from spack.util.executable import which