Tag Android

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 12, 2018

Facebook, Google, Cisco, WhatsApp and other industry partners get together to create Message Layer Security as an open standard for end-to-end encryption with formal verification. Messaging Layer Security is now an IETF working group as well.
https://datatracker.ietf.org/doc/draft-omara-mls-architecture/

Long read about the takedown of Gooligan, Android botnet that was stealing OAuth credentials back in 2016.
https://www.elie.net/blog/security/taking-down-gooligan-part-1-overview

The Israeli security company CTS Labs published information about a series of exploits against AMD chips just one day after they have notified the AMD.
https://www.schneier.com/blog/archives/2018/03/israeli_securit.html

Russia orders company behind the Telegram messaging application to hand over users’ encryption keys.
https://www.theverge.com/2018/3/20/17142482/russia-orders-telegram-hand-over-user-encryption-keys

Hacker behind Guccifer 2.0 pseudonym, known for providing WikiLeaks with stolen emails from the US Democratic National Committee, was an officer of Russia’s military intelligence directorate.
https://www.thedailybeast.com/exclusive-lone-dnc-hacker-guccifer-20-slipped-up-and-revealed-he-was-a-russian-intelligence-officer

Fascinating in depth blog about the breaking security of the Ledger cryptocurrency hardware wallet.
https://saleemrashid.com/2018/03/20/breaking-ledger-security-model/

There was a Facebook bug which made persistent XSS in Facebook wall possible by embedding an external video using the Open Graph protocol.
https://opnsec.com/2018/03/stored-xss-on-facebook/

Two part series about the password cracking Chinese hardware "encrypted" hard drives. PIN recovered.
https://syscall.eu/blog/2018/03/12/aigo_part1/
https://syscall.eu/blog/2018/03/12/aigo_part2/

Documents leaked by Edward Snowden reveal that the NSA worked to “track down” Bitcoin users.
https://theintercept.com/2018/03/20/the-nsa-worked-to-track-down-bitcoin-users-snowden-documents-reveal/

Dark Web Map - a visualization of the structure of 6.6k Tor's onion services, a.k.a. hidden services, a.k.a. the dark web.
https://www.hyperiongray.com/dark-web-map/

InfoSec Week 9, 2018

Wandera security researchers spotted a new sophisticated Android RedDrop malware hidden in at least 53 Android applications. It can intercept SMS, record audio and exfiltrate data to the remote server.
https://www.wandera.com/blog/reddrop-malware/

There is an experimental support for forward secure post-quantum Extended Hash-Based Signatures (XMSS) in the OpenSSH protocol.
https://marc.info/?l=openbsd-cvs&m=151940152732492&w=2

Blog by Matthew Green on the probable encryption key handling by Apple in the China mandated cloud. Not really satisfied explanation, only guesses, as Apple is silent about the exact key handling methodology.
https://blog.cryptographyengineering.com/2018/01/16/icloud-in-china/

Cloudflare detected new Memcached based amplification DDoS attack vector. The attacker just implants a large payload on an exposed memcached server, then, the attacker spoofs the "get" request message with target Source IP address. The memcached server could be really huge - around 1MB.
https://blog.cloudflare.com/memcrashed-major-amplification-attacks-from-port-11211/

A group of computer scientists from the US and China published a paper proposing the first-ever trojan for a neural network. It's called PoTrojan and is triggered by special network input. After that, the network start to work differently.
https://www.outerplaces.com/science/item/17872-neural-networks-ai-trojan-AMPED

The Cisco Talos team analyzed attribution claims around Olympic Destroyer malware. The result is to not imply blindly to Russia. Attribution is hard.
http://blog.talosintelligence.com/2018/02/who-wasnt-responsible-for-olympic.html

New KeePassXC version 2.3.0 was released. There are lots of new features, like new Argon2 key derivation function, SSH agent integration, browser plugin.
https://keepassxc.org/blog/2018-02-28-2.3-released/

Trustico SSL certificate reseller revoked 23000 customer certificates by sending private keys(?!) over email to the Digicert certification authority.
http://blog.koehntopp.info/index.php/3075-how-not-to-run-a-ca/

There are rumors that major U.S. government contractor Cellebrite is able to unlock all current iPhone models.
https://www.forbes.com/sites/thomasbrewster/2018/02/26/government-can-access-any-apple-iphone-cellebrite/

An advertising network has been using a well-known malware trick, a Domain Generation Algorithm (DGA), to bypass ad blockers and deploy in-browser cryptocurrency miners since December 2017.
https://www.bleepingcomputer.com/news/security/ad-network-uses-dga-algorithm-to-bypass-ad-blockers-and-deploy-in-browser-miners/

A novel technique is using hardware branch predictor side channel attack to bypass ASLR protection:
"Jump Over ASLR: Attacking Branch Predictors to Bypass ASLR"
http://www.cs.ucr.edu/~nael/pubs/micro16.pdf

InfoSec Week 6, 2018

A buffer overflow vulnerability in older Starcraft version enabled modders to create new maps, so Blizzard tasked reverse engineer to safely emulate the bug in the newer, fixed version.
The author says it all: "This is a tale about what dedication to backward compatibility implies."
https://plus.google.com/+MartinSeeger/posts/HYmY8gPCYJT

A bug in the Grammarly chrome extension (approx ~22M users) exposes user authentication token to all websites, so everybody collecting user data can access their cloud data at grammarly.com.
https://bugs.chromium.org/p/project-zero/issues/detail?id=1527&desc=2

With the release of Google Chrome 68, Chrome will mark all HTTP sites as a “not secure” in the status bar.
https://security.googleblog.com/2018/02/a-secure-web-is-here-to-stay.html

Article about the Australian startup Azimuth Security which sells hacking software to the "Five Eyes" police and intelligence agencies.
Rumors are that they are able to remotely hack Android devices and iPhones.
https://motherboard.vice.com/en_us/article/8xdayg/iphone-zero-days-inside-azimuth-security

SEC Consult researchers found multiple vulnerabilities in their smart sex toys security review. Customer database, clear passwords, vulnerable remote controllers...
http://seclists.org/fulldisclosure/2018/Feb/0

Metasploit integrated EternalRomance, EternalSynergy, and EternalChampion Windows (MS17-010) vulnerabilities leaked from the NSA by Shadow Brokers.
https://blog.rapid7.com/2018/02/02/metasploit-wrapup-26/

Someone leaked the source code of Apples' iBoot iOS trusted boot program on GitHub. It is a critical part of iOS system. Meanwhile, Apple filed a copyright takedown request with GitHub.
https://motherboard.vice.com/en_us/article/a34g9j/iphone-source-code-iboot-ios-leak

Hackers infected water utility SCADA systems in Europe with the cryptocurrency mining software.
http://www.eweek.com/security/water-utility-in-europe-hit-by-cryptocurrency-malware-mining-attack

Security researchers discovered vulnerabilities in an automated gas management system that allowed them to hijack credit card payments, steal card numbers and more.
https://www.scmagazine.com/gas-pump-vulnerabilities-in-widespread-software-grant-low-prices-and-credit-card-data/article/741764/

APT Simulator is a Windows Batch script that uses a set of tools and output files to make a system look as if it was the victim of an APT attack.
https://github.com/NextronSystems/APTSimulator

InfoSec Week 1, 2018

Daniel Shapira from Twistlock wrote a blog about exploiting a Linux kernel vulnerability in the waitid() syscall (CVE-2017-5123) in order to modify the Linux capabilities of a Docker container, gain privileges and escape the container jail.
https://www.twistlock.com/2017/12/27/escaping-docker-container-using-waitid-cve-2017-5123/

There is a critical hardware bug in the Intel chips, which enables a user level process to access kernel address space, thus read other processes memory. Cloud providers and OS makers are preparing software patches, but the performance penalty could be significant. According to the Wired:
"[researchers] confirmed that when Intel processors perform that speculative execution, they don't fully segregate processes that are meant to be low-privilege and untrusted from the highest-privilege memory in the computer's kernel. That means a hacker can trick the processor into allowing unprivileged code to peek into the kernel's memory with speculative execution."
http://pythonsweetness.tumblr.com/post/169166980422/the-mysterious-case-of-the-linux-page-table
https://www.wired.com/story/critical-intel-flaw-breaks-basic-security-for-most-computers/

The guy dumped PlayStation 4 kernel by leaking arbitrary memory into accessible crashdumps.
https://fail0verflow.com/blog/2017/ps4-crashdump-dump/

ACM published article about more than 2 decades old ransomware experiments with the name "Cryptovirology: The Birth, Neglect, and Explosion of Ransomware".
https://cacm.acm.org/magazines/2017/7/218875-cryptovirology/fulltext

Nice write up about exploit development for the arbitrary command execution on a BMC Server Automation remote agent software.
https://nickbloor.co.uk/2018/01/01/rce-with-bmc-server-automation/

MacOS-only 0day vulnerability published on a last day of 2017. It is an IOHIDSystem kernel vulnerability that can be exploited by any unprivileged user.
https://siguza.github.io/IOHIDeous/

Edward Snowden’s open source Haven application uses smartphone sensors to detect physical tampering.
https://github.com/guardianproject/haven

PiKarma detects wireless network attacks performed by KARMA module (fake AP). Starts deauthentication attack (for fake access points).
https://github.com/WiPi-Hunter/PiKarma

InfoSec Week 50, 2017

Crooks hacked Fox-IT by capturing fox-it.com DNS record, then obtained a certificated and executed a man-in-the-middle attack on connection.
https://www.fox-it.com/en/insights/blogs/blog/fox-hit-cyber-attack/

The Mandiant - FireEye company analyzed an incident at a critical infrastructure organization where an attacker deployed so called TRITON malware designed to manipulate industrial safety system. According to the analysis, "the malware was delivered as a Py2EXE compiled python script [...] containing standard Python libraries, open source libraries, as well as the attacker-developed Triconex attack framework for interacting with the Triconex controllers."
https://www.fireeye.com/blog/threat-research/2017/12/attackers-deploy-new-ics-attack-framework-triton.html

The anonymous researcher behind the massive internet scans of the IoT devices known for the BrickerBot case published some insights on his operation. Looks like he is a gray hat after all.
https://ghostbin.com/paste/q2vq2

Google published Android security roadmap for the next year. There will be lots of improvements, and new requirements for App developers.
https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html

Multiple vulnerabilities were identified in Telegram messenger for Android, like arbitrary file overwrite on receiving and directory traversal. There are definitely better alternatives to this software...
https://bugs.chromium.org/p/project-zero/issues/detail?id=1470

Guy uploaded his self-signed malformed certificate to the websites which process them and found out lots of them is vulnerable to the XSS injection.
https://binaryfigments.com/2017/12/11/dont-trust-all-ssl-tls-certificates/

Mavinject is a legitimate Windows component digitally signed by Microsoft, that can be abused to inject any DLL inside a running process.
https://reaqta.com/2017/12/mavinject-microsoft-injector/

Microsoft pushed comprehensive audit reports on Windows Events to GitHub.
https://github.com/MicrosoftDocs/windows-itpro-docs/tree/master/windows/device-security/auditing

InfoSec Week 49, 2017

The "Janus" Android vulnerability (CVE-2017-13156) allows attackers to modify the code in applications without affecting their signatures. The root of the problem is that a file can be a valid APK file and a valid DEX file at the same time. The vulnerability allows attackers to inject malware into legitimate application and avoiding detection.
https://www.guardsquare.com/en/blog/new-android-vulnerability-allows-attackers-modify-apps-without-affecting-their-signatures

According to the research by Hanno Böck, Juraj Somorovsky and Craig Young, the Bleichenbacher’s attack on RSA PKCS#1v1.5 encryption still works on almost 3% of the Alexa top million most visited websites. The researchers were even able to sign a message using Facebook’s private TLS key. Vendors like Citrix, F5, Cisco, and multiple SSL implementations are affected.
https://robotattack.org/

HP had a keylogger in the Touchpad driver, which was disabled by default, but could be enabled by setting a registry value.
https://zwclose.github.io/HP-keylogger/

There is a remote root code execution flaw (CVE-2017-15944) in the Palo Alto Networks firewalls.
http://seclists.org/fulldisclosure/2017/Dec/38

Researchers from the Group-IB spotted the operations of a Russian-speaking MoneyTaker group that stole as much as $10 million from US and Russian banks.
https://securityaffairs.co/wordpress/66591/cyber-crime/moneytaker-group.html

Recorded Future analyzed costs of various cybercriminal services sold on the dark market.
https://www.recordedfuture.com/cyber-operations-cost/

Internet traffic for organizations such as Google, Apple, Facebook, Microsoft, Twitch were briefly rerouted to Russia.
https://bgpmon.net/popular-destinations-rerouted-to-russia/

Microsoft started rolling out an update for Malware Protection Engine to fix a remotely exploitable bug discovered by the British intelligence agency.
https://www.bleepingcomputer.com/news/security/microsoft-fixes-malware-protection-engine-bug-discovered-by-british-intelligence/

Avast open-sources RetDec machine-code decompiler for platform-independent analysis of executable files. It's based on LLVM.
https://blog.avast.com/avast-open-sources-its-machine-code-decompiler

Wireless network sniffer Kismet now supports the DJI DroneID UAV telemetry extensions.
http://blog.kismetwireless.net/2017/11/dji-uav-drone-id.html

Wazuh - Wazuh helps you to gain deeper security visibility into your infrastructure by monitoring hosts at an operating system and application level.
It supports log management and analysis, integrity monitoring, anomaly detection and compliance monitoring.
https://github.com/wazuh/wazuh

Wifiphisher is an automated victim-customized phishing attacks against Wi-Fi clients.
https://github.com/wifiphisher/wifiphisher

InfoSec Week 44, 2017

There are at least 14 newly discovered vulnerabilities in the Linux kernel USB subsystem. The vulnerabilities were found by the Google syzkaller kernel fuzzer. According to the researchers, all of them can be triggered with a crafted malicious USB device in case an attacker has physical access to the machine.
http://www.openwall.com/lists/oss-security/2017/11/06/8

Mozilla will remove root certificate of the Staat der Nederlanden (State of the Netherlands) Certificate Authority from Firefox browser if the Dutch government vote a new law that grants local authorities the power to intercept Internet communication using "false keys".
https://www.bleepingcomputer.com/news/security/mozilla-wants-to-distrust-dutch-https-provider-because-of-local-dystopian-law/

Bug hunter Scott Bauer has published an in depth analysis of the Android remotely exploitable bug in the blog post named "Please Stop Naming Vulnerabilities: Exploring 6 Previously Unknown Remote Kernel Bugs Affecting Android Phones".
https://pleasestopnamingvulnerabilities.com/

Some web pages use textfield with the CSS "asterix" trick instead of the password field so they can bypass browser security warning when password field is on an unencrypted web page. Nonsense.
https://www.troyhunt.com/bypassing-browser-security-warnings-with-pseudo-password-fields/

More than 54 thousand have the same pair of 512-bit RSA keys as their DNS Zone Signing Keys.
https://lists.dns-oarc.net/pipermail/dns-operations/2017-October/016878.html

Good blog from the ElcomSoft about the history and current possibilities in the iOS and iCloud forensics.
https://blog.elcomsoft.com/2017/11/the-art-of-ios-and-icloud-forensics/

The Norwegian National Communications Authority reported GPS signal jamming activity in the Finnmark region near the Russian border.
https://twitter.com/aallan/status/926553232591159296/photo/1
https://rntfnd.org/wp-content/uploads/Norway-Comms-Auth-Report-GPS-Jamming-Sept-2017.pdf

Mac and Linux versions of the Tor anonymity software contained a flaw that can leak users real IP addresses.
https://blog.torproject.org/tor-browser-709-released

Software and HDL code for the PCILeech FPGA based devices that can be used for the Direct Memory Access (DMA) attack and forensics is now available on a GitHub. The FPGA based hardware provides full access to 64-bit memory space without having to rely on a kernel module running on the target system.
https://github.com/ufrisk/pcileech-fpga

InfoSec Week 43, 2017

Researchers from the Masaryk University finally published full paper of the practical cryptographic attack against the implementation of RSA in the widely used trusted platform modules / crypto tokens.
"The Return of Coppersmith’s A‚ttack: Practical Factorization of Widely Used RSA Moduli" https://crocs.fi.muni.cz/_media/public/papers/nemec_roca_ccs17_preprint.pdf

Those guys published an interesting paper about the secure cryptographic computation with the threat model without attackers based on Earth. They are proposing SpaceHSM hardware secure devices on the orbit.
"SpaceTEE: Secure and Tamper-Proof Computing in Space using CubeSats"
https://arxiv.org/abs/1710.01430

There is a small chance that the documents encrypted by Bad Rabbit ransomware could be recovered without paying ransom, if the shadow copies had been enabled in the Windows prior to infection. Victims can restore the original versions of the encrypted files using standard Windows backup mechanism.
For technical analysis of the Bad Rabbit ransomware, see the second link.
https://securelist.com/bad-rabbit-ransomware/82851/
https://www.endgame.com/blog/technical-blog/badrabbit-technical-analysis

Google is going to deprecate the use of pinned public key certificates, public key pinning (PKP), from the Google Chrome browser.
https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/he9tr7p3rZ8/eNMwKPmUBAAJ

The British government has publicly attributed North Korean government hackers as a source behind the "WannaCry" malware epidemy.
https://www.independent.co.uk/news/uk/home-news/wannacry-malware-hack-nhs-report-cybercrime-north-korea-uk-ben-wallace-a8022491.html

Multiple remote execution vulnerabilities (CVE-2017-13089, CVE-2017-13090) were patched in the popular software Wget. Update!
https://www.viestintavirasto.fi/en/cybersecurity/vulnerabilities/2017/haavoittuvuus-2017-037.html

The source code of an AhMyth Android remote administration tool is available on GitHub. It can steal contact information, turn on camera, microphone, read SMS, and more.
https://github.com/AhMyth/AhMyth-Android-RAT

Malscan is a robust and fully featured scanning platform for Linux servers built upon the ClamAV platform, providing all of the features of Clamscan with a host of new features and detection modes.
https://github.com/jgrancell/malscan

There is an update for the world's fastest and most advanced password recovery utility Hashcat.
https://github.com/hashcat/hashcat/releases/tag/v4.0.0

InfoSec Week 42, 2017

Interesting research on the possibility of a cheap online surveillance.
"In this work we examine the capability of [..] an individual with a modest budget -- to access the data collected by the advertising ecosystem. Specifically, we find that an individual can use the targeted advertising system to conduct physical and digital surveillance on targets that use smartphone apps with ads."
https://adint.cs.washington.edu/

Mnemonic company together with the Norwegian Consumer Council tested several smartwatches for children and found numerous security vulnerabilities that allows child tracking, etc.
https://www.forbrukerradet.no/side/significant-security-flaws-in-smartwatches-for-children

The Cisco Talos team discovered an e-mail campaign spreading malicious Visual Basic inserted in a Cyber Conflict U.S. conference flyer, targeting cyber warfare conference participants.
http://blog.talosintelligence.com/2017/10/cyber-conflict-decoy-document.html

SfyLabs security researchers have spotted a new Android banking trojan named LokiBot. It has banking trojan functionality, but turns into ransomware and locks users out of their phones if they try to remove its admin privileges.
https://www.bleepingcomputer.com/news/security/lokibot-android-banking-trojan-turns-into-ransomware-when-you-try-to-remove-it/

There is a newly published cryptographic attack on some legacy systems like Fortinet FortiGate VPN, which uses ANSI X9.31 random number generator with a hardcoded seed key.
https://duhkattack.com/
https://blog.cryptographyengineering.com/2017/10/23/attack-of-the-week-duhk/

Nice explanation of a remote code execution vulnerability (CVE-2017-13772) on a TP-Link WR940N home WiFi router.
https://www.fidusinfosec.com/tp-link-remote-code-execution-cve-2017-13772/

Purism’s Librem Laptops running open-source coreboot firmware are now available with completely disabled Intel Management Engine.
https://puri.sm/posts/purism-librem-laptops-completely-disable-intel-management-engine/

Wire, open source end-to-end encrypted messenger is now open for corporate clients. It offers secure chats, calls and file sharing while following strict European data protection laws.
https://medium.com/@wireapp/wire-open-for-business-2c535033cf9a


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