Tag LibreOffice

InfoSec Week 6, 2019

Insurance Company says to the Mondelez customer that the NotPetya ransomware attack was an act of cyber war and therefore not covered by the policy.
https://ridethelightning.senseient.com/2019/01/insurance-company-says-notpetya-is-an-act-of-war-refuses-to-pay.html

Hackers breached Norway's Visma IT company to steal client secrets. Many large Norwegian companies are using Visma for accounting.
Attackers are attributed by Reuters sources as backed by the Chinese government.
https://www.reuters.com/article/us-china-cyber-norway-visma/china-hacked-norways-visma-to-steal-client-secrets-investigators-idUSKCN1PV141

Researchers demonstrated a new privacy attack against all variants of the Authentication and Key Agreement (AKA) protocol that impacts 5G, 4G, and 3G telephony protocols. The attack compromises users' privacy more than current known location privacy attacks do.
https://www.zdnet.com/article/new-security-flaw-impacts-5g-4g-and-3g-telephony-protocols/

Looks like Go language had vulnerabilities in the Elliptic Curve Cryptography implementation which could allow attackers to cause a denial of service or possible private key recovery attacks.
https://www.debian.org/security/2019/dsa-4380

It is possible to trick Evolution email application users into trusting a phished mail via adding a forged UID to a OpenPGP key that has a previously trusted UID. It's because Evolution extrapolates the trust of one of OpenPGP key UIDs into the key itself.
https://dev.gentoo.org/~mgorny/articles/evolution-uid-trust-extrapolation.html

Good long-form story about the young cyber criminals and young girlfriend that followed their lies to her death. It does not have a happy ending.
https://www.buzzfeednews.com/article/josephbernstein/tomi-masters-down-the-rabbit-hole-i-go

Security researchers were assaulted by a casino technology vendor Atrient after responsibly disclosed critical vulnerabilities to them.
https://www.secjuice.com/security-researcher-assaulted-ice-atrient/

Article 13, the new European Union copyright law is back and it got worse, not better. https://juliareda.eu/2019/02/article-13-worse/

Researchers from Google Project Zero evaluated Apple's implementation of Pointer Authentication on the A12 SoC used in the iPhone XS. There are bypasses possible, but the conclusion says it is still a worthwhile exploitation mitigation technique.
https://googleprojectzero.blogspot.com/2019/02/examining-pointer-authentication-on.html

There is a dangerous, remote code execution flaw in the LibreOffice and OpenOffice software.
https://thehackernews.com/2019/02/hacking-libreoffice-openoffice.html

Nadim Kobeissi is discontinuing his secure online chat Cryptocat. Thanks for service, it had nice user interface.
https://twitter.com/i/web/status/1092712064634753024

Malware For Humans is a conversation-led, independent documentary about fake news, big data, electoral interference, and hybrid warfare.
https://www.byline.com/column/67/article/2412

InfoSec Week 7, 2018

The Fidelis Cybersecurity researcher Jason Reaves demonstrated how covertly exchange data using X.509 digital certificates. The proof of concept code is using SubjectKeyIdentifier and generating certificates on the fly.
https://www.fidelissecurity.com/threatgeek/2018/02/exposing-x509-vulnerabilities

The "UDPoS" Point of Sale malware is using DNS traffic to exfiltrate stolen credit card data.
https://blogs.forcepoint.com/security-labs/udpos-exfiltrating-credit-card-data-dns

Talos analyzed malware threat targeting Olympic computer systems during the opening ceremony. The main purpose was information gathering and destroying the system.
http://blog.talosintelligence.com/2018/02/olympic-destroyer.html

Zero-day vulnerability in the Bitmessage messaging client was exploited to steal Electrum cryptocurrency wallet keys.
https://securityaffairs.co/wordpress/69100/hacking/bitmessage-zero-day.html

Trustwave analyzed multi-stage Microsoft Word attack which is NOT using macros. Really creative technique.
https://www.trustwave.com/Resources/SpiderLabs-Blog/Multi-Stage-Email-Word-Attack-without-Macros/

Microsoft can't fix Skype privilege escalation bug without the massive code rewrite, so they postponed it for a while.
http://seclists.org/fulldisclosure/2018/Feb/33

Facebook is advertising their Onavo VPN application, but there are a few reasons why it is really not a good idea to use it.
https://gizmodo.com/do-not-i-repeat-do-not-download-onavo-facebook-s-vam-1822937825

Facebook is spamming users via SMS registered for two factor authentication (2FA). Then posts their responses on a wall.
https://twitter.com/Gabriel__Lewis/status/963121814166630400

(Not only) Performance analysis of a Retpoline mitigation for Spectre vulnerability.
https://cyber.wtf/2018/02/13/in-debt-to-retpoline/

A guide on how to brutefoce Linux Full Disk Encryption (LUKS) volumes using Hashcat software.
https://blog.pnb.io/2018/02/bruteforcing-linux-full-disk-encryption.html

Proof of concept of LibreOffice remote arbitrary file disclosure vulnerability. It is possible to silently send any files. All operating systems affected before 5.4.5/6.0.1 versions.
https://github.com/jollheef/libreoffice-remote-arbitrary-file-disclosure