cKure
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This channel was created in 2018 and contains content from the information security domain.

This channel is primarily run by AI bots (n8n).

Archive: ckure.esy.es
Criticals: @ckuRED
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■■■■□ CVE-2021-37973: Chrome Update Released to Patch Actively Exploited Zero-Day Vulnerability.

Use after free in Portals. Reported by Clément Lecigne from Google TAG, with technical assistance from Sergei Glazunov and Mark Brand from Google Project Zero on 2021-09-21 (https://bugs.chromium.org/p/chromium/issues/detail?id=1251727)

https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html

https://thehackernews.com/2021/09/urgent-chrome-update-released-to-patch.html
■■■■■ This is one of the entries to the BGGP 2021 Polyglot File challenge.

It uses a novel technique of directly embedding data within the compressed image data stream of a PNG. This means you can literally see the bytes of the embedded files!

It literally took about a minute for me to understand. 😂

https://twitter.com/David3141593/status/1441365353431384066
cKure pinned a photo
■□□□□ Data-Leak: European Union 🇪🇺 formally blames Russia 🇷🇺 for the GhostWriter operation.

https://hackademicus.nl/european-union-formally-blames-russia-for-the-ghostwriter-operation/
■■■■■ Disclosure of three 0-day iOS vulnerabilities and critique of Apple 🍎 Security Bounty program.

https://twitter.com/illusionofcha0s

https://habr.com/en/amp/post/579714
cKure pinned a photo
■□□□□ Data-Leak from Iran 🇮🇷 of apparent Traffic department 🏬 is up for sale for 28K USD in BTC containing 24 M records.
■■■■■ 🔧 Tool: The WiFiWart is an open source WiFi penetration device masquerading as a regular wall charger. It features a 1.2Ghz Cortex A7 MPU with two WiFi chips onboard. The electrical, mechanical and software is all completely open source. The elec is design in Kicad, hardware in FreeCAD and software will be all GNU/Linux based. Eventually there will be three PCBs in this repository. Rather than placing redundant information in this file, I would encourage readers to check out the blog series listed below for a very in depth walk through.

https://github.com/Machine-Hum/wifiwart
■■■□□ Autodiscover, a protocol used by Microsoft Exchange for automatic configuration of clients such as Microsoft Outlook, has a design flaw that causes the protocol to “leak” web requests to Autodiscover domains outside of the user’s domain but in the same TLD (i.e. Autodiscover.com).

https://www.guardicore.com/labs/autodiscovering-the-great-leak/
■■■■■ Financially motivated actor breaks certificate parsing to avoid detection.

Mr. Neel Mehta found an attacker using certificates that OpenSSL won't parse but Windows will accept.

https://blog.google/threat-analysis-group/financially-motivated-actor-breaks-certificate-parsing-avoid-detection/amp/
■■■■■ Report: Technical assessment of the security of Chinese 5G handsets sold in Lithuania - in built backdoors, censorship etc (*ANALYSIS OF PRODUCTS MADE BY Huawei, Xiaomi and OnePlus).

PDF: https://www.nksc.lt/doc/en/analysis/2021-08-23_5G-CN-analysis_env3.pdf
■■□□□ Cyber-Attack on United States 🇺🇸 as Port of Houston Attacked Employing Zoho Zero-Day Vulnerability.

CISA officers on 23rd of September reported about a potential government-backed hacker organization that has tried to break the Port of Houston networks, one of the major port agencies in the United States, employing zero-day vulnerabilities in a Zoho user authentication device.

https://www.ehackingnews.com/2021/09/port-of-houston-attacked-employing-zoho.html