Tag Qubes

InfoSec Week 13, 2018

The city of Atlanta government has become the victim of a ransomware attack. The ransomware message demanding a payment of $6,800 to unlock each computer or $51,000 to provide all the keys for affected systems. Employees were told to turn off their computers.
https://arstechnica.com/information-technology/2018/03/atlanta-city-government-systems-down-due-to-ransomware-attack/

The academic researchers have discovered a new side-channel attack method called BranchScope that can be launched against devices with Intel processors and demonstrated it against an SGX enclave. The patches released in response to the Spectre and Meltdown vulnerabilities might not prevent these types of attacks.
http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf

Good insight into the ransomware business and how it operates, how it transfers Bitcoin funds, with data gathered over a period of two years.
The paper is named "Tracking Ransomware End-to-end"
https://www.elie.net/static/files/tracking-ransomware-end-to-end/tracking-ransomware-end-to-end.pdf

Mozilla has created a Facebook Container extension for Firefox, which should enable users to protect their online habits by sandboxing Facebook webpage.
https://blog.mozilla.org/firefox/facebook-container-extension/

Interesting article about the North Korean army of hackers operating abroad with the mission to earn money by any means necessary.
https://www.bloomberg.com/news/features/2018-02-07/inside-kim-jong-un-s-hacker-army

Unified logs in the MacOS High Sierra (up to 10.13.3) show the plain text password for APFS encrypted external volumes via disk utility application.
https://www.mac4n6.com/blog/2018/3/21/uh-oh-unified-logs-in-high-sierra-1013-show-plaintext-password-for-apfs-encrypted-external-volumes-via-disk-utilityapp

SophosLabs researchers analyzed a new Android malware which is pretending to he a legitimate QR reader application, but actually is monetizing users by showing them a flood of full-screen advertisements. More than 500k apps were installed.
https://nakedsecurity.sophos.com/2018/03/23/crooks-infiltrate-google-play-with-malware-lurking-in-qr-reading-utilities/

Brian Krebs analyzed the social network behind the recently famous Coinhive javascript cryptocurrency mining business.
https://krebsonsecurity.com/2018/03/who-and-what-is-coinhive/

CloudFlare published a Merkle Town dashboard, Certificate Transparency logs visualization tool.
https://blog.cloudflare.com/a-tour-through-merkle-town-cloudflares-ct-ecosystem-dashboard/

Facebook is tracking users' phone call information via their Android Messenger application.
https://twitter.com/i/web/status/977325434030428160

There are multiple critical vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp

New version (4.0) of the most secure operating system on the planet - Qubes OS was released.
https://www.qubes-os.org/news/2018/03/28/qubes-40/

InfoSec Week 4, 2018

Electron applications designed to run on Windows that register themselves as the default handler for a protocol, like Skype, Slack and others, are vulnerable to the remote code execution vulnerability.
https://electronjs.org/blog/protocol-handler-fix

Dutch intelligence service AIVD provided the FBI with important information regarding Russian interference with the American elections. They have following the Cozy Bear APT for years.
https://www.volkskrant.nl/media/dutch-agencies-provide-crucial-intel-about-russia-s-interference-in-us-elections~a4561913/

Good blog about the exploitation of the Intel Management Engine 11 vulnerabilities. Researchers Mark Ermolov and Maxim Goryachy were able to debug and analyse most of the Intel ME processes.
http://blog.ptsecurity.com/2018/01/running-unsigned-code-in-intel-me.html

It's possible to bypass the Cloudflare protection by scanning internet for misconfigured customers' servers.
https://blog.christophetd.fr/bypassing-cloudflare-using-internet-wide-scan-data/

It is possible for an unauthenticated attacker in the LAN network to achieve remote code execution (CVE-2018-5999) in the AsusWRT router as the root user.
https://raw.githubusercontent.com/pedrib/PoC/master/advisories/asuswrt-lan-rce.txt

The Tinder dating application is not using encryption when accessing data on a backend server. Your naked photos could be seen by a waitress in a restaurant. The geeky one.
https://www.checkmarx.com/2018/01/23/tinder-someone-may-watching-swipe-2/

Oracle has released patches for ten vulnerabilities in VirtualBox, which allows guest to host virtual machine escape.
https://www.techrepublic.com/article/10-new-vm-escape-vulnerabilities-discovered-in-virtualbox/

The guy was able to obtain TLS certificates from the Let's Encrypt certification authority for domains that he does not own, due to the TLS-SNI-01 challenge workflow in a cloud environment. Shared hosting providers like Heroku, AWS CloudFront affected.
https://labs.detectify.com/2018/01/12/how-i-exploited-acme-tls-sni-01-issuing-lets-encrypt-ssl-certs-for-any-domain-using-shared-hosting/

Blog by Joanna Rutkowska on a future Qubes Air operating system architecture roadmap. They want to provide compartmentalized secure Qubes OS as a service.
https://www.qubes-os.org/news/2018/01/22/qubes-air/

There is a cryptographic analysis of the WireGuard protocol. WireGuard is a layer 3 replacement for the IPsec, OpenVPN solutions. Interesting project.
https://eprint.iacr.org/2018/080

Nice introduction on how to fuzz TCP servers by Robert Swiecki.
http://blog.swiecki.net/2018/01/fuzzing-tcp-servers.html

InfoSec Week 14, 2017

The Cisco Talos team has analyzed ROKRAT remote administration tool targeting South Koreans by spear phishing campaign.
http://blog.talosintelligence.com/2017/04/introducing-rokrat.html

The "rensenWare" ransomware is asking victims to score over 0.2 billion game currency playing the game "Touhou Project - Undefined Fantastic Object”.
http://securityaffairs.co/wordpress/57850/malware/rensenware-ransomware.html

The new BrickerBot malware is performing so called Permanent Denial-of-Service (PDoS) on a IoT device. It's using the same attack vector as a Mirai botnet - bruteforcing ssh passphrase. If succesful, it tries to brick device storage.
https://security.radware.com/ddos-threats-attacks/brickerbot-pdos-permanent-denial-of-service/

Triada Android malware is using open source DroidPlugin sandbox when running, in order to evade detection.
https://blog.avast.com/mobile-spyware-uses-sandbox-to-avoid-antivirus-detections

The security issue in the Splunk Enterprise allowed a potential attacker to steal data from the authenticated user if she visited a malicious website.
http://seclists.org/fulldisclosure/2017/Mar/89

Google Project Zero demonstrated a Broadcom’s Wi-Fi stack remote code execution exploit on a fully updated Nexus 6P, running Android 7.1.1 version NUF26K.
https://googleprojectzero.blogspot.md/2017/04/over-air-exploiting-broadcoms-wi-fi_4.html

TheShadowBrokers hacking group just leaked the NSA digital weapons package online.
https://github.com/x0rz/EQGRP
https://medium.com/@shadowbrokerss/dont-forget-your-base-867d304a94b1

WikiLeaks published documents detailing the Grasshopper framework used by the CIA to create custom Windows malware installers.
Source code of the "Stolen Goods" module contains parts of the leaked Carberp banking trojan source code.
http://www.securityweek.com/wikileaks-details-cia-tool-creating-windows-malware-installers

The Xen Security Team has discovered a security bug in the hypervisor code which, if exploited, can be used for breaking Qubes OS isolation. Exploit chaining required for the full system takeover tough.
https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt

Interesting research about the using antivirus software as a leverage during the attack. "Automatically Inferring Malware Signatures for Anti-Virus Assisted Attacks"
https://www.sec.cs.tu-bs.de/pubs/2017-asiaccs.pdf