Tag 7-Zip

InfoSec Week 4, 2019

Microsoft's mobile Edge browser begins issuing fake news warnings. It is powered by news rating company NewsGuard. It gives you fake news warning for Wikileaks, so decide for yourself.
https://www.engadget.com/2019/01/23/microsoft-edge-mobile-fake-news

A vulnerability in the apt package allows a network man-in-the-middle or malicious mirror to execute arbitrary code as root on a machine installing any packages.
https://justi.cz/security/2019/01/22/apt-rce.html

Encryption mode in the well-known compression software 7-Zip uses poor randomness when generating AES initialization vectors.
https://sourceforge.net/p/sevenzip/bugs/2176/

Turns out that the MySQL server has access to all client local files. Patched server can upload clients' files like SSH keys.
https://gwillem.gitlab.io/2019/01/20/sites-hacked-via-mysql-protocal-flaw/

Daniel Miessler published a short blog about the reasons why software remains insecure.
TLDR: "Basically, software remains vulnerable because the benefits created by insecure products far outweigh the downsides. Once that changes, software security will improve—but not a moment before."
https://danielmiessler.com/blog/the-reason-software-remains-insecure/

Trend Micro engineers found applications in the Google Play store that drop Anubis banking malware after the device motion sensors are activated to evade initial detection.
https://blog.trendmicro.com/trendlabs-security-intelligence/google-play-apps-drop-anubis-banking-malware-use-motion-based-evasion-tactics/

Interesting Twitter bug was filled via HackerOne platform - changing email address on Twitter for Android unsets “Protect your Tweets” flag and make protected tweets public.
https://hackerone.com/reports/472013

Great in-depth blog about the finding and exploiting bugs in Marvell Avastar Wi-Fi.
https://embedi.org/blog/remotely-compromise-devices-by-using-bugs-in-marvell-avastar-wi-fi-from-zero-knowledge-to-zero-click-rce/

WPintel - Chrome extension designed For WordPress vulnerability scanning and information gathering.
https://github.com/Tuhinshubhra/WPintel

InfoSec Week 19, 2018

There is a first ransomware which is taking advantage of a new Process Doppelgänging fileless code injection technique. Working on all modern versions of Microsoft Windows, since Vista. This variant of a known SynAck ransomware is using NTFS transactions to launch a malicious process by replacing the memory of a legitimate process.
https://securelist.com/synack-targeted-ransomware-uses-the-doppelganging-technique/85431/

Security researchers from the Dutch information security company Computes has found that some Volkswagen and Audi cars are vulnerable to remote hacking. They were able to exploit vehicle infotainment systems. The possible attackers could track car location as well as listen to the conversations in a car.
https://www.bleepingcomputer.com/news/security/volkswagen-and-audi-cars-vulnerable-to-remote-hacking/

Twitter found a bug that stored user passwords unmasked in an internal log, there is no indication of a breach, but all Twitter users should change their passwords.
https://blog.twitter.com/official/en_us/topics/company/2018/keeping-your-account-secure.html

There is a breakthrough cryptographic attack on 5-round AES using only 2^22 (previous best was 2^32) presented at CRYPTO 2018. It is joint work of Nathan Keller, Achiya Bar On, Orr Dunkelman, Eyal Ronen and Adi Shamir. This kind of attack is good when evaluating the security of a cipher, it does not have any real world implication as the AES is using at least 10 rounds in production implementations.
https://eurocrypt.2018.rump.cr.yp.to/a7141747a6c49798313a278e9a70afe2.pdf

Bug hunter which found multiple vulnerabilities in the 7-zip software used by anti-virus vendors wrote an blog on how to exploit one of such bugs. Interesting read.
https://landave.io/2018/05/7-zip-from-uninitialized-memory-to-remote-code-execution/

The 360 Core Security Division response team detected an APT attack exploiting a 0-day vulnerability and captured the world’s first malicious sample that uses a browser 0-day vulnerability (CVE-2018-8174). It is a remote code execution vulnerability of Windows VBScript engine and affects the latest version of Internet Explorer.
Microsoft patched this vulnerability few days ago and credited Chinese researchers.
http://blogs.360.cn/blog/cve-2018-8174-en/

Source code of TreasureHunter Point-of-Sale malware leaks online.
https://www.flashpoint-intel.com/blog/treasurehunter-source-code-leaked/

The ssh-decorator package from Python pip had an obvious backdoor (sending ip+login+password to ssh-decorate[.]cf in cleartext HTTP).
https://www.reddit.com/r/Python/comments/8hvzja/backdoor_in_sshdecorator_package/

Luke Picciau wrote about his experience with Matrix and it's Riot messenger for one year.
https://itscode.red/posts/1-year-using-matrix/

There is a first official version 1.0 RC of Briar for Android.
Briar is an open-source End-to-end encrypted Bluetooth / WiFi / Tor based mesh-networking (decentralized) messaging application.
https://briarproject.org/download.html

The Infection Monkey is an open source security tool for testing a data center's resiliency to perimeter breaches and internal server infection.
https://github.com/guardicore/monkey