Tag WhatsApp

InfoSec Week 2, 2018

New research has found a flaw in a group messaging part of a Signal protocol used by Signal, WhatsApp and Threema. It’s hardly exploitable, but the server (attacker) could be, in some theoretical scenario, able to silently join an encrypted group chat.
https://blog.cryptographyengineering.com/2018/01/10/attack-of-the-week-group-messaging-in-whatsapp-and-signal/

Janit0r, author of the mass internet scanning campaign known as Internet Chemotherapy, released two more blogs about the campaign. Interesting.
http://depastedihrn3jtw.onion.link/show.php?md5=ee7136ac48fa59fba803b9fbcbc6d7b9
http://depastedihrn3jtw.onion.link/show.php?md5=7e7bfe406315f120d8ed325ffb87670b

A tale about the npm package which crawled user entered credit card information from the websites. It is a work of fiction, but published few hours after dozens of npm packages stopped working due to missing dependencies... Scary.
https://hackernoon.com/im-harvesting-credit-card-numbers-and-passwords-from-your-site-here-s-how-9a8cb347c5b5

HC7 Planetary Ransomware is probably the first known ransomware asking for Ethereum as a ransom payment. It's for Windows users only.
https://www.bleepingcomputer.com/news/security/hc7-planetary-ransomware-may-be-the-first-to-accept-ethereum/

There is a hardwired network backdoor in the Western Digital MyCloud drives (user: mydlinkBRionyg, password: abc12345cba). Vendor probably patched it six months after reported.
http://gulftech.org/advisories/WDMyCloud%20Multiple%20Vulnerabilities/125
https://twitter.com/dragosr/status/949822668563365889

Wi-Fi Protected Access III - WPA3 will be forced on a marked this year. Hopefully a lot of security enhancements to wi-fi protocol will be delivered by the WPA3-certified devices.
https://www.wi-fi.org/news-events/newsroom/wi-fi-alliance-introduces-security-enhancements

Let's Encrypt certification authority has temporarily disabled TLS-SNI-01 authorization challenge due to reported exploitation technique possible on a shared hosting infrastructure.
https://community.letsencrypt.org/t/2018-01-09-issue-with-tls-sni-01-and-shared-hosting-infrastructure/49996

Google Cloud security engineers reported remote code execution vulnerability in the AMD Platform Security Processor.
http://seclists.org/fulldisclosure/2018/Jan/12

Brian Krebs wrote a blog about the flourishing online markets with the stolen credentials.
https://krebsonsecurity.com/2017/12/the-market-for-stolen-account-credentials/

VirusTotal has a new feature, a visualization tool for the relationship between files, URLs, domains and IP addresses.
http://blog.virustotal.com/2018/01/virustotal-graph.html

A Meltdown vulnerability proof of concept for reading passwords out of Google Chrome browser.
https://github.com/RealJTG/Meltdown

InfoSec Week 34 - 35, 2017

Autodesk A360 cloud-based online storage misused as a delivery platform for multiple malware families.
http://blog.trendmicro.com/trendlabs-security-intelligence/a360-drive-adwind-remcos-netwire-rats/

Brian Krebs has done a good open source intel work on a shadowy past of Marcus Hutchins, author of the popular cybersecurity blog MalwareTech.
https://krebsonsecurity.com/2017/09/who-is-marcus-hutchins/

Wikileaks has published documents about the CIA Angelfire - "persistent framework that can load and execute custom implants on target computers running the Microsoft Windows operating system (XP or Win7)"
https://wikileaks.org/vault7/#Angelfire

ESET has published a research paper about a Gazer, stealth cyberespionage trojan, attributed to the notoriously known Turla group. The group was spreading malware using watering hole and spearphishing campaigns. I cannot find any more direct attribution except the fact that it is targeting "embassies and consulates" which, I believe, are a very common target for every intelligence actor...
https://www.welivesecurity.com/wp-content/uploads/2017/08/eset-gazer.pdf

Zimperium Researcher Adam Donenfeld published a proof-of-concept for iOS Kernel Exploit.
https://github.com/doadam/ziVA

Very good analysis of a group chat vulnerabilities in a popular IM applications:
"Insecurities of WhatsApp's, Signal's, and Threema's Group Chats"
https://web-in-security.blogspot.ch/2017/07/insecurities-of-whatsapps-signals-and.html

Cloudflare's blog post about a quantum resistant supersingular isogeny Diffie-Hellman key agreement used in TLS 1.3.
https://blog.cloudflare.com/sidh-go/

A Phrack-style paper on research into abusing Windows token privileges for escalation of privilege. Deep down the rabbit hole.
https://github.com/hatRiot/token-priv/blob/master/abusing_token_eop_1.0.txt

Security researchers at Positive Technologies have discovered an undocumented configuration setting that disables the Intel Management Engine.
http://securityaffairs.co/wordpress/62470/hacking/intel-management-engine-kill-switch.html