TLDR InfoSec

TLDR INFORMATION SECURITY 2025-06-10

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01ATTACKS & VULNERABILITIES

HACKER TARGETS OTHER HACKERS AND GAMERS WITH BACKDOORED GITHUB CODE

Sophos detected a campaign in which an attacker uses GitHub repositories with hidden backdoors to target other hackers and gamers. The repositories use various loaders to deploy various payloads, such as info-stealers and remote access trojans (RATs). Many of the fake repositories are designed to target other hackers, but some also use game cheats, mod tools, and fake exploits as lures.

bleepingcomputer.com2 min read

MISCONFIGURED HMIS EXPOSE US WATER SYSTEM TO ANYONE WITH A BROWSER

While conducting a routine scan of industrial-control hosts, Censys researchers discovered an uncommon TLS certificate configuration that led to the discovery of a browser-based HMI platform. These internet-exposed platforms could be used to view and control water systems without authentication. Censys sent a bulk notification to the EPA, and the number of systems that were either read-only or fully controllable was reduced from 300 to 20.

securityweek.com2 min read

02STRATEGIES & TACTICS

EKS VS GKE - SECURITY

An in-depth comparison of security features in EKS and GKE. The post breaks down features by Identity and Access Management (IAM), controlling network traffic, configuration/posture management, vulnerability/supply-chain management, and runtime threat detection.

jason-umiker.medium.com17 min read

FOLLOW THE SMOKE | CHINA-NEXUS THREAT ACTORS HAMMER AT THE DOORS OF TOP TIER TARGETS

SentinelOne observed and countered Chinese cyberespionage operations targeting the company in 2024-2025, including PurpleHaze reconnaissance and a ShadowPad intrusion via a hardware logistics partner, but SentinelOne wasn't compromised. The broader campaigns targeted 70+ organizations globally, including government, media, and cybersecurity vendors.

sentinelone.com16 min read

OPEN-SOURCE TOOLKIT OF AN IVANTI CSA ATTACKER

In late 2024, Ivanti released advisories for vulnerabilities in its Cloud Services Appliance (CSA) product, which were discovered to be part of an exploit chain against the products. In this post, Synacktiv researchers break down three of the open-source tools they observed used by attackers in post-exploitation activities on these devices and provide YARA rules to detect them. The attacker planted Suo5 after the initial compromise as a webshell to be used on an internet-facing Exchange server. The attacker then established persistence using the iox tunnel and attempted lateral movement using atexec.py to gain remote code execution via Task Scheduler.

synacktiv.com9 min read

03LAUNCHES & TOOLS

GUARDZ (PRODUCT LAUNCH)

Guardz continuously monitors organizations' internal and external digital footprint to provide real-time protection. From a single dashboard, administrators can immediately take action when necessary.

guardz.com

BUGFISH NUKE

Bugfish Nuke is a powerful emergency data deletion tool for Windows designed to help you quickly and securely erase sensitive files, user data, and system traces.

github.comGitHub repository

ADELEGINATOR

ADeleginator is a tool for finding insecure trustee and resource delegations in Active Directory environments.

github.comGitHub repository

04MISCELLANEOUS

GOOGLE FIXES BUG THAT COULD REVEAL USERS' PRIVATE PHONE NUMBERS

A security researcher discovered a Google bug that allowed attackers to reveal any account's private recovery phone number in under 20 minutes without owner notification. The exploit bypassed anti-bot protections through automated brute-force attacks. Google confirmed the fix after the researcher disclosed the vulnerability in April. It paid a $5,000 bounty and found no confirmed exploits occurred.

techcrunch.com3 min read

EXPLAINER FOR LOCAL NETWORK ACCESS

The Chrome Secure Web and Network team has drafted a proposal to require explicit permission for a site to access devices on the local network. This proposal seeks to address a common attack vector in which an attacker can use a CSRF vulnerability to attack a local device such as a printer. The proposal would require any request that seeks to access a more private IP space (such as public to private or private to loop back) to obtain a new “Local Network Access” permission from the user via a prompt.

github.comGitHub repository

LINUX FOUNDATION UNVEILS DECENTRALIZED WORDPRESS PLUGIN MANAGER

The Linux Foundation has launched the FAIR Package Manager, a new way to manage WordPress plugins and themes. It was created after a major conflict between WordPress companies Automattic and WP Engine. This tool gives developers more control by offering a decentralized and secure plugin system.

bleepingcomputer.com2 min read