Hacker News Reader

shellcromanceron eMudhra intermediate CA compromise

What a change a month makes. Public discussion on eMudhra getting their own root CA inclusion ended and Mozilla had them slated for approval.

https://bugzilla.mozilla.org/show_bug.cgi?id=1889859

shellcromanceron OpenAI unveils its first custom chip, built by Broadcom

Probably obvious but still omitted in the OpenAI post: chips are being made by TSMC [1]. Wasn't sure if Intel got it.

1. https://www.investing.com/news/stock-market-news/openai-unve...

shellcromanceron Notepad++ hijacked by state-sponsored actors

> Additionally, the XML returned by the update server is now singed (XMLDSig)

The latest and greatest cryptography powering everyone’s favorite SAML-based single-sign on.

shellcromanceron The cryptography behind passkeys

The FIDO Alliance (who wrote the WebAuthn spec with the W3C) has a draft specification for a format (Credential Exchange Format) and protocol (Credential Exchange Protocol) for migrating passkeys and other credentials [1]. I don't think this is implemented by any providers yet, but it's being worked on.

[1] https://fidoalliance.org/specifications-credential-exchange-...

shellcromanceron Sign in as anyone: Bypassing SAML SSO authentication with parser differentials

Security Cryptography Whatever’s take on this week SAML non-sense will be fun.

shellcromanceron EUCLEAK Side-Channel Attack on the YubiKey 5 Series

Fantastic research by NinjaLab. One of the most interesting parts to me from Yubico's advisory is that the Webauthn protocols attestation [1] is also defeated by this local cloning. Could the protocol have been better designed to resist this local cloning attack?

> An attacker could exploit this issue to create a fraudulent YubiKey using the recovered attestation key. This would produce a valid FIDO attestation statement during the make credential resulting in a bypass of an organization’s authenticator model preference controls for affected YubiKey versions.

1. https://www.w3.org/TR/webauthn-2/#attestation

shellcromanceron Pql, a pipelined query language that compiles to SQL

> The where operator will validate that the syntax is valid, but it will pass unknown function calls through to the underlying database. In RunReveal's case, we use Clickhouse under the hood, so if we wanted to do a case-insensitive match we could still use Clickhouse's lower function.

From the release blog [1] they mention that unknown functions are passed through to the underlying SQL engine -- this let's them target anything from mysql, Postgres, ClickHouse or proprietary engines like Snowflake.

1. https://blog.runreveal.com/introducing-pql/

shellcromanceron Show HN: Skip the SSO Tax, access your user data with OSS

Shameless self-plug for an alternative tax that affects operational security and reliability teams: https://audit-logs.tax

Understanding how your breach impacts me, or detecting how the abuse of your tools are used to impact our organizations shouldn't cost additional money or be gated to only enterprise contracts.

Happy to take PRs for other vendors logs being added: https://github.com/shellcromancer/audit-log-wall-of-shame

shellcromanceron AirDrop is now limited to 10 minutes

Regardless of where it's rolled out first, this is a good example of reducing the attack surface from remote exploits (which China is known to have and use at contests like Tianfu Cup). Seems in line with changes they made with "Lockdown Mode" that users can opt into.