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Daily Edition · Page 5

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

TLDR InfoSec

CLOUDFLARE WHACKS WAF BYPASS BUG THAT OPENED SIDE DOOR FOR ATTACKERS

Cloudflare has fixed a vulnerability in its WAF that could allow attackers to bypass security rules and directly access origin servers. The vulnerability emerged when Cloudflare disabled security features upon receiving an HTTP-01 ACME challenge without verifying that the challenge token was valid. Cloudflare remediated this issue with no customer action by disabling WAF features only when the challenge token matches a legitimate token for that domain.

theregister.com · 2 min

TLDR InfoSec

PROMPT INJECTION BUGS FOUND IN OFFICIAL ANTHROPIC GIT MCP SERVER

Cyata discovered three prompt-injection vulnerabilities in Anthropic's reference MCP server for the git implementation. The vulnerabilities could allow an attacker to execute arbitrary code when the MCP server is used alongside a filesystem MCP, delete arbitrary files, and load arbitrary files into an LLM's context. They arise from mcp-server-git failing to properly validate repository paths or sanitize arguments passed to Git commands.

infosecurity-magazine.com · 2 min

TLDR InfoSec

THREAT HUNTING WITH CLAUDE CODE AND MCP

This guide demonstrates how to use Claude Code with Model Context Protocol servers to compress days of manual threat hunting into hours by connecting AI agents directly to security data lakes for hypothesis-driven investigations. The workflow involves stakeholder alignment on three to five priority threats from threat models, then deploying reusable "Skills" that teach agents hunting methodologies, such as the pivot loop pattern for correlating indicators across time, identity, network, and host dimensions. Hunt outputs include structured findings with confidence assessments and detection coverage gaps that translate directly into detection-as-code rules.

detectionatscale.com · 7 min

TLDR InfoSec

UNAUTHENTICATED CLUSTER TAKEOVER IN AWS ROSA

A security researcher discovered a critical vulnerability in the Red Hat OpenShift Service affecting AWS ROSA Classic clusters that could allow unauthenticated full cluster takeover. The vulnerability lies in the cluster transfer endpoint, which checks only whether the recipient has the ability to accept a cluster, not whether the requester owns the cluster, allowing an attacker to take over a cluster with only the cluster_uuid and username. Unauthenticated requests to the cluster's web console settings endpoint return the cluster_uuid and the owner's email address, which could be used to guess their username.

blog.ryanjarv.sh · 5 min

TLDR InfoSec

INTRODUCING SUPPLY CHAIN ATTACK CAMPAIGNS TRACKING IN THE SOCKET DASHBOARD

Socket launched a Threat Intel page with campaign tracking that identifies whether organizations are affected by active supply chain attack campaigns targeting package registries like npm. The feature groups related malicious packages under single campaigns (such as Shai-Hulud and Contagious Interview), displays Safe/Impacted status for each organization, and provides direct links to affected repositories with ecosystem filtering for npm, PyPI, and Maven. Security teams can immediately assess exposure to coordinated attacks without cross-referencing advisories or running custom scripts.

links.tldrnewsletter.com · 6 min

TLDR InfoSec

HONG KONG ISSUES CODE OF PRACTICE UNDER THE PROTECTION OF CRITICAL INFRASTRUCTURES (COMPUTER SYSTEMS) ORDINANCE

Hong Kong's Office of the Commissioner of Critical Infrastructure issued a Code of Practice on January 1 that translated the Protection of Critical Infrastructures Ordinance into specific compliance requirements for critical infrastructure operators. The CoP establishes criteria for Critical Computer System designation (including SCADA and industrial control systems), defines material change notification triggers, mandates security audits and management plans, and clarifies incident reporting timelines—12 hours for serious incidents affecting service levels or causing data breaches, and 48 hours for other security incidents. Critical infrastructure operators should treat the CoP as the operative compliance benchmark and implement structured governance programs aligned with its technical baselines, security audit requirements, and incident response protocols to meet supervisory expectations.

mayerbrown.com · 9 min

TLDR InfoSec

A NOVEL SIDE-CHANNEL ATTACK THAT UTILIZES MEMORY RE-ORDERINGS

Memory DisOrder is a timerless side-channel attack that exploits memory re-orderings in relaxed memory models to infer cross-process activity on mainstream CPUs (X86/Arm/Apple) and GPUs (NVIDIA/AMD/Apple). The technique demonstrated covert channels achieving up to 16 bits/second with 95% accuracy on Apple M3 GPU, reliable DNN architecture fingerprinting, and potential throughput of nearly 30K bits/second on X86 CPUs when exploiting low-level system details. Organizations should monitor for emerging mitigations as this vulnerability class, which affects parallel processing units, becomes better understood.

semiengineering.com · 2 min

TLDR InfoSec

PHISHING CAMPAIGN ZEROES IN ON LASTPASS CUSTOMERS

An ongoing phishing campaign targeting LastPass customers began around January 19, using LLM-crafted emails with plausible subject lines urging users to "back up their vaults" before scheduled maintenance. The phishing emails direct victims to credential-harvesting sites designed to capture master passwords, potentially compromising entire password vaults. Organizations should alert users to verify email sender addresses, enable MFA on password managers, and report suspicious LastPass-branded emails.

links.tldrnewsletter.com · 3 min

TLDR IndexPage 5