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Daily Edition · Page 5

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

TLDR InfoSec

FRENCH POSTAL SERVICE BROUGHT DOWN BY CYBER ATTACK

France's postal service, La Poste, suffered a widespread DDoS attack that disabled all IT systems for over twelve hours, affecting the website, mobile app, Digiposte digital document service, and digital ID services. The attack also disrupted La Poste's banking subsidiary Banque Postale's online services, though over-the-counter operations and payment processing remained functional. The timing raised concerns about potential Christmas delivery disruptions, with no timeline provided for service restoration.

csoonline.com · 1 min

TLDR InfoSec

C2 REDIRECTORS MADE EASY

Red teamers traditionally must manually configure C2 redirector proxy rules by reviewing profiles and adding User-Agent strings and HTTP endpoints to configuration files, requiring updates whenever the C2 profile changes. The author developed caddy-c2, a Caddy web server module that automatically parses Cobalt Strike profiles using goMalleable to extract User-Agents and URI paths, then dynamically routes legitimate C2 traffic without manual rule configuration. The module simplifies redirector deployment by eliminating the need to manually sync proxy configurations with C2 profile changes, though current support is limited to Cobalt Strike, with plans to expand to frameworks such as Mythic and Havoc.

blog.lum8rjack.com · 8 min

TLDR InfoSec

HOW TO HACK DISCORD, VERCEL AND MORE WITH ONE EASY TRICK - EVA'S SITE

Mintlify lets customers write pages in MDX, but processes that content in a way that allows attackers to run arbitrary JavaScript on the server during build. This means an attacker can take over the build environment, poison cached pages, and inject malicious scripts into many companies' docs, including big names like Discord and Vercel. Because some docs were served from the same domain or path as real apps, those scripts could steal auth tokens or perform actions as logged-in users.

kibty.town · 11 min

TLDR InfoSec

MODERNIZING LINKEDIN'S STATIC APPLICATION SECURITY TESTING CAPABILITIES TO PROTECT OUR MEMBERS

LinkedIn modernized its SAST pipeline by building custom GitHub Actions workflows using CodeQL and Semgrep that deviated from paved paths to accommodate complex internal build processes, implementing dynamic rule filtering, SARIF enrichment, and extensive metrics instrumentation across tens of thousands of repositories. The team deployed a "stub workflow" approach combined with a Drift Management System that daily checks repository compliance and automatically commits workflow files, ensuring consistent security coverage while allowing centralized updates without touching individual repos. LinkedIn implemented "blocking mode" enforcement via GitHub Repository Rulesets requiring SARIF submission and zero high-risk vulnerabilities before PR merges, protected by multi-level kill switches (organization/repo/language/tool/rule-specific) and fail-safe mechanisms that upload blank SARIFs to unblock developers during scanning failures while triggering oncall alerts.

linkedin.com · 10 min

TLDR InfoSec

LIBXML2 NARROWLY AVOIDS BECOMING UNMAINTAINED

The libxml2 library temporarily lost its sole volunteer maintainer, Nick Wellnhofer, after years of unpaid security work, creating a critical risk for GNOME, web browsers, and countless projects depending on this XML/XSLT processing library. Wellnhofer experienced burnout from companies that sent security reports, expecting immediate CVE responses and patches, with no financial compensation beyond a single Google donation, while providing no code contributions or test cases. Two new maintainers have assumed responsibility, but the incident highlights the unsustainable model in which commercial software relies on unpaid volunteers to maintain critical infrastructure components.

hackaday.com · 4 min

TLDR InfoSec

THE 5 SECURITY FEATURES THAT WILL LEAD IN 2026, AND 3 THAT SHOULD

Security market analyst James Berthoty predicts that supply chain and AI tooling will dominate the market in 2026. Berthoty predicts that the following critical product capabilities will be essential: supply chain malware detection, AI vulnerability remediation and prioritization, AI visibility, guardrails, testing, AI based detections, and SOC augmenters. Teams should also have runtime function level reachability (ADR), developer endpoint security, and realtime AI threat modeling and design review on their radar.

pulse.latio.tech · 6 min

TLDR InfoSec

OPENAI SAYS AI BROWSERS MAY ALWAYS BE VULNERABLE TO PROMPT INJECTION ATTACKS

OpenAI acknowledges that prompt injection attacks in AI browsers like ChatGPT Atlas are a long-term, unsolved security risk, similar to social engineering on the web. The company is layering defenses, including an LLM-based automated attacker that repeatedly probes Atlas in simulation to discover new attack strategies, tighten protections, and enforce user confirmations. Experts still question whether the current agentic browser value justifies their elevated risk.

techcrunch.com · 5 min

TLDR IndexPage 5