Tag vulnerability

InfoSec Week 27, 2018

Samsung Galaxy S9 and S9+ devices, maybe others, are texting camera photos to random contacts through the Samsung Messages app without user permission.
https://www.theverge.com/circuitbreaker/2018/7/2/17528076/samsung-phones-text-rcs-update-messages

Gentoo Linux distribution GitHub repository was compromised. Attacker removed out all the maintainers, who realized the intrusion only 10 minutes after he gained access. He add rm -rf /* to build scripts, changed README and some minor things.
https://wiki.gentoo.org/wiki/Github/2018-06-28

Since January 2017, Stylish browser extension has been augmented with spyware that records every single website that its 2 million other users visit, then sends complete browsing activity back to its servers, together with a unique identifier.
https://robertheaton.com/2018/07/02/stylish-browser-extension-steals-your-internet-history/

Digicert Withdraws from the CA Security Council (CASC), because they "feel that CASC is not sufficiently transparent and does not represent the diversity of the modern Certificate Authority (CA) industry. Improving the ecosystem requires broad participation from all interested stakeholders, and many are being excluded unnecessarily."
Great step Digicert!
https://www.digicert.com/blog/notice-of-withdrawal-from-the-ca-security-council/

CryptoCurrency Clipboard Hijacker malware discovered by Bleeping Computer monitors for more than 2.3 million Bitcoin addresses, then replace them in memory, with the attacker address.
https://www.bleepingcomputer.com/news/security/clipboard-hijacker-malware-monitors-23-million-bitcoin-addresses/

Local root jailbreak, authorization bypass & privilege escalation vulnerabilities in all ADB broadband routers, gateways and modems. The patch is already available.
https://www.sec-consult.com/en/blog/advisories/local-root-jailbreak-via-network-file-sharing-flaw-in-all-adb-broadband-gateways-routers/

A Microsoft Security division published an analysis of the malware sample which exploited the Adobe Reader software and the Windows operating system using two zero-day exploits in a single PDF file.
https://cloudblogs.microsoft.com/microsoftsecure/2018/07/02/taking-apart-a-double-zero-day-sample-discovered-in-joint-hunt-with-eset/

Blog about why it is not helpful to use the Canvas Defender extension, a browser canvas fingerprinting countermeasure.
https://antoinevastel.com/tracking/2018/07/01/eval-canvasdef.html

Blog about the cryptographic primitives used by the North Korean Red Star operating system. The OS is mostly uses AES-256 Rijndael with dynamic S-Box modifications, but the design is evolving and the latest version of the algorithm has more differences.
https://blog.kryptoslogic.com/crypto/2018/07/03/pyongyang.html

Interesting technique how to bypass web-application firewalls by abusing SSL/TLS. An attacker can use an unsupported SSL cipher to initialize the connection to the webserver which supports that cipher, but the WAF would not be able to identify the attack because it can't view the data.
https://0x09al.github.io/waf/bypass/ssl/2018/07/02/web-application-firewall-bypass.html

Good introduction to the Linux ELF file format with some practical examples how sections look like, how to shrink the size during compilation and more.
https://0x00sec.org/t/dissecting-and-exploiting-elf-files/7267

InfoSec Week 26, 2018

A reverse shell connection is possible from an OpenVPN configuration file. So be cautious and treat ovpn files like shell scripts.
https://medium.com/tenable-techblog/reverse-shell-from-an-openvpn-configuration-file-73fd8b1d38da

Mozilla integrates Troy Hunts' Have I Been Pwned (HIBP) database of breached passwords into Firefox. They will make breach data searchable via a new tool called Firefox Monitor.
https://www.troyhunt.com/were-baking-have-i-been-pwned-into-firefox-and-1password/

The suspected ringleader behind the well known Carbanak malware is under arrest, but of course, his malware attacks live on.
https://www.bloomberg.com/news/features/2018-06-25/the-biggest-digital-heist-in-history-isn-t-over-yet

It is possible to attack resources in the private network from the Internet with DNS rebinding attack.
"Following the wrong link could allow remote attackers to control your WiFi router, Google Home, Roku, Sonos speakers, home thermostats and more."
https://medium.com/@brannondorsey/attacking-private-networks-from-the-internet-with-dns-rebinding-ea7098a2d325

Wi-Fi Alliance Introduces Wi-Fi Certified WPA3 Security. Again with a questionable cryptography, but we will see. That's how industrial alliances with expensive membership works.
https://www.wi-fi.org/news-events/newsroom/wi-fi-alliance-introduces-wi-fi-certified-wpa3-security

IETF published draft of Issues and requirements for Server Name Indication (SNI) encryption in TLS.
The draft lists known attacks against SNI encryption, discusses the current "co-tenancy fronting" solution, and presents requirements for future TLS layer solutions.
https://tools.ietf.org/html/draft-ietf-tls-sni-encryption-03

The unpatched WordPress vulnerability allows code execution for authors. Exploiting the vulnerability grants an attacker the capability to delete any file of the WordPress installation or any other file the PHP process user has the proper permissions to delete.
https://blog.ripstech.com/2018/wordpress-file-delete-to-code-execution/

Researchers identified three attack vectors against LTE (Long-Term Evolution, basically 4G) on layer 2 - an active attack to redirect network packets, a passive identity mapping attack, and website fingerprinting based on resource allocation.
https://alter-attack.net/

Cisco Talos team releases ThanatosDecryptor, the program that attempts to decrypt certain files encrypted by the Thanatos malware.
https://github.com/Cisco-Talos/ThanatosDecryptor

DEDA is a tool that gives the possibility to read out and decode color tracking dots which encode information about the printer. It also allows anonymisation to prevent arbitrary tracking.
https://github.com/dfd-tud/deda

InfoSec Week 24, 2018

Yet another high severity attack against the Intel CPUs. Unpatched systems can leak SIMD, FP register state between privilege levels. These registers are used for private keys nowadays.
The cost of a patch is more expensive context switches because the fix has to unload and reload all SIMD, FP state.
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00145.html

The team behind the CopperheadOS, hardened Google-free Android fork, has imploded. Guys, CEO and CTO (main and probably the only developer) are blaming each other.
https://twitter.com/DanielMicay/status/1006299769214562305

Chromium devs are planning to enforce TLS protocol invariants by rolling new TLS 1.3 versions every six weeks.
According to the developers: "Every six weeks, we would randomly pick a new code point. These versions will otherwise be identical to TLS 1.3, save maybe minor details to separate keys and exercise allowed syntax changes. The goal is to pave the way for future versions of TLS by simulating them (“draft negative one”)."
https://www.ietf.org/mail-archive/web/tls/current/msg26385.html

The Kromtech Security Center found 17 malicious docker images stored on Docker Hub for an entire year. With more than 5 million pulls, containers were primarily used to mine cryptocurrency.
https://kromtech.com/blog/security-center/cryptojacking-invades-cloud-how-modern-containerization-trend-is-exploited-by-attackers

At least 74 persons, mostly Nigerians, were arrested due to crimes related to the business e-mail compromise schemes.
https://garwarner.blogspot.com/2018/06/74-mostly-nigerians-arrested-in.html

Good summary of the existing inter-service authentication schemes. Bearer, hmac based tokens etc.
https://latacora.singles/2018/06/12/a-childs-garden.html

There is an Ancient "su - hostile" vulnerability in Debian 8 & 9. Doing "su - hostile" may lead to the root privilege escalation. Default sudo -u probably is affected too.
https://j.ludost.net/blog/archives/2018/06/13/ancient_su_-_hostile_vulnerability_in_debian_8_and_9/

There is a critical command injection vulnerability in the macaddress NPM package.
https://nodesecurity.io/advisories/654

Blog about the crafting remote code execution via server-side spreadsheet injection.
https://www.bishopfox.com/blog/2018/06/server-side-spreadsheet-injections/

An implementation flaw in multiple cryptographic libraries allows a side-channel based attacker to recover ECDSA or DSA private keys. Lots of libraries affected, like LibreSSL, Mozilla NSS, OpenSSL, etc.
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/

InfoSec Week 22, 2018

Google Pixel 2 devices implement insider attack resistance in the tamper-resistant hardware security module that guards the encryption keys for user data.
It is not possible to upgrade the firmware that checks the user's password unless you present the correct user password.
https://android-developers.googleblog.com/2018/05/insider-attack-resistance.html

Avast Threat Labs analyzed malware pre-installed on a thousands of Android devices. More than 18000 users of Avast already had this adware in a device. Cheap smartphones are primarily affected.
https://blog.avast.com/android-devices-ship-with-pre-installed-malware

Great blog post about the USB reverse engineering tools and practices by the Glenn 'devalias' Grant.
http://devalias.net/devalias/2018/05/13/usb-reverse-engineering-down-the-rabbit-hole/

FBI advice router users to reboot devices in order to remove VPNFilter malware infecting 500k devices.
https://arstechnica.com/information-technology/2018/05/fbi-tells-router-users-to-reboot-now-to-kill-malware-infecting-500k-devices/

If you didn't hear about the recent arbitrary code execution vulnerability in git software (CVE 2018-11234, CVE 2018-11235), there is a high level summary on the Microsoft DevOps blog.
https://blogs.msdn.microsoft.com/devops/2018/05/29/announcing-the-may-2018-git-security-vulnerability/

The white hat hacker received $25000 bug bounty for getting root access on all Shopify instances by leveraging Server Side Request Forgery (SSRF) attack.
https://hackerone.com/reports/341876

Attacking browsers by site-channel attacks using CSS3 features. The guys demonstrated how to deanonymize website visitors and more.
https://www.evonide.com/side-channel-attacking-browsers-through-css3-features/

The Underhanded Crypto Contest for 2018 started, the topic has two categories: Backdooring messaging systems & Deceptive APIs. If you want to write some backdoor to the cryptographic implementation bud you do not harm anybody, this is a good opportunity.
https://underhandedcrypto.com/2018/05/27/rules-for-the-2018-underhanded-crypto-contest/

Article about the new threat model and potential mitigations for the Chrome browser against the Spectre like vulnerabilities.
https://chromium.googlesource.com/chromium/src/+/master/docs/security/side-channel-threat-model.md

New article by the Intercept about the Google military drone AI contract. They want to make fortune on an image recognition.
https://theintercept.com/2018/05/31/google-leaked-emails-drone-ai-pentagon-lucrative/

Codechain - secure multiparty code reviews with signatures and hash chains.
According to the author, Codechain is not about making sure the code you execute is right, but making sure you execute the right code.
https://github.com/frankbraun/codechain

InfoSec Week 18, 2018

Multiple tech giants like Apple, Microsoft, Google and others formed an industry coalition and have joined security experts in criticizing encryption backdoors, after Ray Ozzie's CLEAR key escrow idea was widely derided. He basically proposed a scheme where the users have no control over their own devices, but the devices can be securely forensically analyzed by the government agencies.
https://www.zdnet.com/article/coalition-of-tech-giants-hit-by-nsa-spying-slams-encryption-backdoors/
https://github.com/rayozzie/clear/blob/master/clear-rozzie.pdf

There is an information leaking vulnerability via crafted user-supplied CDROM image.
"An attacker supplying a crafted CDROM image can read any file (or device node) on the dom0 filesystem with the permissions of the qemu device model process."
QubesOS operationg system is not affected due to the properly compartmentalized architecture.
http://seclists.org/oss-sec/2018/q2/71

Great in-depth blog about the reconstruction of the exploit created by the CIA's "Engineering Development Group" targeting MikroTik's RouterOS embedded operating system. This exploit was made public by the WikiLeaks last year.
http://blog.seekintoo.com/chimay-red.html

Bypassing authentication and impersonating arbitrary users in Oracle Access Manager with padding oracle. The guy basically broke Oracles home grown cryptographic implementation.
https://www.sec-consult.com/en/blog/2018/05/oracle-access-managers-identity-crisis/

There is a critical privilege escalation vulnerability affecting Apache Hadoop versions from 2.2.0 to 2.7.3.
http://seclists.org/oss-sec/2018/q2/82

According to the Arbor Networks' security researchers have claimed that the anti-theft software Absolute LoJack is serving as an espionage software modified by the Russia-based Fancy Bear group.
https://asert.arbornetworks.com/lojack-becomes-a-double-agent/

Wired wrote an article about the famous Nigerian 419 scammers, their culture and why they are still flourishing.
https://www.wired.com/story/nigerian-email-scammers-more-effective-than-ever/

Matrix and Riot instant messenger applications are confirmed as the basis for the France’s government initiative to implement federated secure messenger.
https://matrix.org/blog/2018/04/26/matrix-and-riot-confirmed-as-the-basis-for-frances-secure-instant-messenger-app/

Amazon threatens to suspend Signal's secure messenger AWS account over censorship circumvention. They are using different TLS Server Name Indication - "domain fronting" - when establishing connection to circumvent network censorship, but Amazon says it is against their terms of services.
https://signal.org/blog/looking-back-on-the-front/

Respected German CT-Magazine says that there are 8 new Spectre vulnerabilities found in the Intel processors.
https://www.heise.de/ct/artikel/Exclusive-Spectre-NG-Multiple-new-Intel-CPU-flaws-revealed-several-serious-4040648.html

InfoSec Week 17, 2018

A loud sound emitted by a gas-based fire suppression system deployed in the data center has destroyed the hard drives of a Swedish data center, downing NASDAQ operations across Northern Europe.
https://www.bleepingcomputer.com/news/technology/loud-sound-from-fire-alarm-system-shuts-down-nasdaqs-scandinavian-data-center/

Signal for iOS, version 2.23.1.1 and prior, is vulnerable to the screen lock bypass (CVE-2018-9840).
The blog explains how the vulnerability can be exploited in practice.
http://nint.en.do/Signal-Bypass-Screen-locker.php

Good summary about the integrated circuits Counterfeiting, detection and avoidance methods by hardware engineer Yahya Tawil.
https://atadiat.com/en/e-introduction-counterfeit-ics-counterfeiting-detection-avoidance-methods/

A new python-based cryptocurrency mining malware PyRoMine (FortiGuard Labs) is using the ETERNALROMANCE exploit attributed to the NSA, to propagate Monero cryptocurrency miner.
https://securityboulevard.com/2018/04/python-based-malware-uses-nsa-exploit-to-propagate-monero-xmr-miner/

The Australian Bureau of Statistics tracked people by their mobile device data to enrich their collection of data.
https://medium.com/@Asher_Wolf/the-australian-bureau-of-statistics-tracked-people-by-their-mobile-device-data-and-didnt-tell-them-16df094de31

BGP hijack affected Amazon DNS and rerouted web traffic for more than two hours. Attackers used the hijack to serve fake MyEtherWallet.com cryptocurrency website.
https://doublepulsar.com/hijack-of-amazons-internet-domain-service-used-to-reroute-web-traffic-for-two-hours-unnoticed-3a6f0dda6a6f

Embedi researchers analyzed the security of a Huawei Secospace USG6330 firewall firmware. Good insight on how to analyze devices in general.
https://embedi.com/blog/first-glance-on-os-vrp-by-huawei/

The ISO has rejected SIMON and SPECK symmetric encryption algorithms designed and proposed by the NSA. They are optimized for small and low-cost processors like IoT devices.
https://www.schneier.com/blog/archives/2018/04/two_nsa_algorit.html

The Center for Information Technology Policy at Princeton Announced IoT Inspector - an ongoing initiative to study consumer IoT security and privacy.
https://freedom-to-tinker.com/2018/04/23/announcing-iot-inspector-a-tool-to-study-smart-home-iot-device-behavior/

There is a Proof of Concept for Fusée Gelée - a coldboot vulnerability that allows full, unauthenticated arbitrary code execution on NVIDIA's Tegra line of embedded processors. This vulnerability compromises the entire root-of-trust for each processor, leading to full compromise of on-device secrets where USB access is possible.
https://github.com/reswitched/fusee-launcher/blob/master/report/fusee_gelee.md

InfoSec Week 15, 2018

The U.S. Secret Service is warning about a new scam scheme where the crooks are intercepting new debit cards in the mail and replace the chips on the cards with chips from old cards. Once owners activate the cards, crooks will use stolen chips for their financial gain.
https://krebsonsecurity.com/2018/04/secret-service-warns-of-chip-card-scheme/

Russian state regulator Roskomnadzor have ordered to block the Telegram messaging application 48 hours after it missed a deadline to give up encryption keys to the online conversations of its users. I am not sure whether the Telegram protocol is actually blocked in Russia now.
https://phys.org/news/2018-04-russian-block-telegram-messaging-app.html

A new Android P version will enforce applications to communicate over TLS secured connection by default.
https://android-developers.googleblog.com/2018/04/protecting-users-with-tls-by-default-in.html

Kudelski Security published a walk-through guide about Manger's attack against RSA OAEP. 1-bit leak from oraculum suffices to decrypt ciphertexts.
https://research.kudelskisecurity.com/2018/04/05/breaking-rsa-oaep-with-mangers-attack/

In depth article about stealing FUZE credit card content via Bluetooth.
https://blog.ice9.us/2018/04/stealing-credit-cards-from-fuze-bluetooth.html

Understanding Code Signing Abuse in Malware Campaigns. Pretty good statistics.
https://blog.trendmicro.com/trendlabs-security-intelligence/understanding-code-signing-abuse-in-malware-campaigns/

There is a vulnerability that results in a bypass of a tamper protection provided by the Sophos Endpoint Protection v10.7. Protection mechanism can be bypassed by deleting the unprotected registry key.
http://seclists.org/fulldisclosure/2018/Apr/6

Several vulnerabilities have been found in the Apache HTTPD server. Update now.
http://seclists.org/bugtraq/2018/Apr/6

Microsoft Windows tool certutil.exe for displaying certification authority information can be used to fetch data from the internet in the similar fashion like WGET or CURL.
https://isc.sans.edu/diary/rss/23517

There is a paper about breaking 256-bit security (NIST post-quantum candidate) WalnutDSA in under a minute.
https://eprint.iacr.org/2018/318

Snallygaster - a Tool to Scan for Secrets on Web Servers
https://blog.hboeck.de/archives/892-Introducing-Snallygaster-a-Tool-to-Scan-for-Secrets-on-Web-Servers.html

Nice map of the ongoing Linux kernel defenses. The map shows the relations between the vulnerability classes, current kernel defenses and bug detection mechanisms.
https://github.com/a13xp0p0v/linux-kernel-defence-map

InfoSec Week 14, 2018

There is a critical flaw in Microsoft Malware Protection Engine (CVE-2018-0986). They have used the open source unrar code, changed all the signed ints, breaking the code. Remote SYSTEM memory corruption.
https://bugs.chromium.org/p/project-zero/issues/detail?id=1543&desc=2

Blog by Latacora about the right choices and parameters when dealing with cryptography for backups, communication, authentication, etc. Nice summary, with the explanation and historical references.
http://latacora.singles/2018/04/03/cryptographic-right-answers.html

An Italian football club Lazio has been scammed by a social engineering attack via email. The club sent out transfer bill of €2 million to a fraudster’s bank account instead of the Feyenoord Dutch club.
https://www.hackread.com/phishing-scam-italian-football-club-scammed/

The people behind the Google Wycheproof project, which is testing crypto libraries against known attacks released test vectors for many crypto primitives.
https://github.com/google/wycheproof/tree/master/testvectors

Cloudflare announced consumer DNS service sitting on a 1.1.1.1 address. Supports DNS-over-TLS, also DNS-over-HTTPS.
https://blog.cloudflare.com/announcing-1111/

Good explanatory blog about the oblivious DNS and why DNS should not require our trust at all.
https://freedom-to-tinker.com/2018/04/02/a-privacy-preserving-approach-to-dns/

There is a local privilege escalation vulnerability (CVE-2018-0492) in the Debian beep package. Yes, beep package for motherboard beeping. Escalation, because setuid + race condition.
https://mta.openssl.org/pipermail/openssl-announce/2018-March/000119.html

LibreSSL 2.7.0 was accepting all invalid host names as correct. A vulnerability was found by Python maintainer Christian Heimes when running tests after porting new LibreSSL to the Python 3.7. Nobody affected.
https://mail.python.org/pipermail/python-dev/2018-April/152624.html

VirusTotal launches a new Android Sandbox system VirusTotal Droidy to help security researchers detect malicious apps based on behavioral analysis.
http://blog.virustotal.com/2018/04/meet-virustotal-droidy-our-new-android.html

MesaLink is a new memory-safe and OpenSSL-compatible TLS library written in Rust.
https://github.com/mesalock-linux/mesalink

InfoSec Week 11, 2018

A cyberattack on a Saudi Arabian petrochemical company was probably planed with the physical explosion in mind. They have attributed Iran, and didn't mention Stuxnet at all, so a little bit one-sided view of this cyberwarfare exchange.
https://www.nytimes.com/2018/03/15/technology/saudi-arabia-hacks-cyberattacks.html

There is a critical vulnerability in Credential Security Support Provider protocol (CredSSP) that affects all versions of Windows. Due to cryptographic flaw, man-in-the-middle attack could allow remote procedure calls attack and data exfiltration against the RDP and WinRM.
https://thehackernews.com/2018/03/credssp-rdp-exploit.html

A vulnerability (CVE-2018-1057) in Samba allows authenticated users to change other users' password.
https://www.samba.org/samba/security/CVE-2018-1057.html

Kubernetes vulnerability (CVE-2017-1002101) allows containers using subpath volume mounts with any volume type to access files/directories outside of the volume, including the host’s filesystem. Updated version is already available.
https://groups.google.com/forum/m/#!topic/kubernetes-announce/6sNHO_jyBzE

Quite good exchange on the encryption policy and the government backdoor proposals between the US National Academy of Sciences and the Electronic Frontier Foundation. Relevant for all democratic regimes.
https://www.schneier.com/blog/archives/2018/03/two_new_papers_.html

Kaspersky has discovered PlugX remote access tool (RAT) malware installed across the pharmaceutical organizations in Vietnam, aimed at stealing drug formulas and business information.
https://usa.kaspersky.com/about/press-releases/2018_chinese-speaking-apt-actor-caught-spying-on-pharmaceutical-organizations

Encrypted Email Service provider ProtonMail is being blocked by internet service providers in Turkey.
https://protonmail.com/blog/turkey-online-censorship-bypass/

CTS-Labs security researchers has published a whitepaper identifying four classes of potential vulnerabilities of the Ryzen, EPYC, Ryzen Pro, and Ryzen Mobile processor lines.
https://www.anandtech.com/show/12525/security-researchers-publish-ryzen-flaws-gave-amd-24-hours-to-respond

Adam Langley's blog post about the inability of the TLS 1.3 to snoop on proxy traffic.
https://www.imperialviolet.org/2018/03/10/tls13.html

Hacker Adrian Lamo dies at 37. He was known for his involvement in passing information on whistleblower Chelsea Manning, a former US Army soldier who leaked sensitive information to the WikiLeaks.
http://www.zdnet.com/article/adrian-lamo-hacker-dies/

To find assault suspect, police in the Raleigh, North Carolina used search warrants to demand Google accounts not of specific suspects, but from any mobile devices that veered too close to the scene of a crime in specific time.
http://www.wral.com/to-find-suspects-police-quietly-turn-to-google/17377435/

Kaspersky releases Klara, a distributed system written in Python, designed to help threat intelligence researchers hunt for new malware using Yara rules.
https://github.com/KasperskyLab/klara/

Nice paper about the simple manual cipher that should be resistant against the modern cryptanalysis.
LC4: A Low-Tech Authenticated Cipher for Human-To-Human Communication https://eprint.iacr.org/2017/339

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


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