New research has found a flaw in a group messaging part of a Signal protocol used by Signal, WhatsApp and Threema. It’s hardly exploitable, but the server (attacker) could be, in some theoretical scenario, able to silently join an encrypted group chat.
Janit0r, author of the mass internet scanning campaign known as Internet Chemotherapy, released two more blogs about the campaign. Interesting.
A tale about the npm package which crawled user entered credit card information from the websites. It is a work of fiction, but published few hours after dozens of npm packages stopped working due to missing dependencies... Scary.
HC7 Planetary Ransomware is probably the first known ransomware asking for Ethereum as a ransom payment. It's for Windows users only.
There is a hardwired network backdoor in the Western Digital MyCloud drives (user: mydlinkBRionyg, password: abc12345cba). Vendor probably patched it six months after reported.
Wi-Fi Protected Access III - WPA3 will be forced on a marked this year. Hopefully a lot of security enhancements to wi-fi protocol will be delivered by the WPA3-certified devices.
Let's Encrypt certification authority has temporarily disabled TLS-SNI-01 authorization challenge due to reported exploitation technique possible on a shared hosting infrastructure.
Google Cloud security engineers reported remote code execution vulnerability in the AMD Platform Security Processor.
Brian Krebs wrote a blog about the flourishing online markets with the stolen credentials.
VirusTotal has a new feature, a visualization tool for the relationship between files, URLs, domains and IP addresses.
A Meltdown vulnerability proof of concept for reading passwords out of Google Chrome browser.
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.
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."
The guy dumped PlayStation 4 kernel by leaking arbitrary memory into accessible crashdumps.
ACM published article about more than 2 decades old ransomware experiments with the name "Cryptovirology: The Birth, Neglect, and Explosion of Ransomware".
Nice write up about exploit development for the arbitrary command execution on a BMC Server Automation remote agent software.
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.
Edward Snowden’s open source Haven application uses smartphone sensors to detect physical tampering.
PiKarma detects wireless network attacks performed by KARMA module (fake AP). Starts deauthentication attack (for fake access points).
Multiple critical vulnerabilities were found in the Intel Management Engine, Trusted Execution Engine and Server Platform Services by Intel audit after 3rd party researchers reported the privilege escalation vulnerability.
If you have a vulnerable F5, basically attackers can sign anything with your RSA private key. An F5 BIG-IP virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages.
MalwareHunterTeam discovered a new variant of the CryptoMix ransomware. It uses hardcoded RSA keys and can work offline.
Attackers are using Microsoft’s Office documents Dynamic Data Exchange protocol to download and install malware. Microsoft does not consider it a vulnerability.
Nice step by step guide on how to put shellcode into a legitimate PE file, and make it undetectable.
Extensive review of U2F hardware devices.
al-khaser is a PoC malware with good intentions that aims to stress your anti-malware system. It performs a bunch of nowadays malware tricks and the goal is to see if you stay under the radar.
Puffs is a domain-specific language and library for parsing untrusted file formats safely. Examples of such file formats include images, audio, video, fonts and compressed archives.
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 Attack: 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"
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.
Google is going to deprecate the use of pinned public key certificates, public key pinning (PKP), from the Google Chrome browser.
The British government has publicly attributed North Korean government hackers as a source behind the "WannaCry" malware epidemy.
Multiple remote execution vulnerabilities (CVE-2017-13089, CVE-2017-13090) were patched in the popular software Wget. Update!
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.
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.
There is an update for the world's fastest and most advanced password recovery utility Hashcat.
Danish conglomerate Maersk expects to lose between $200-300m due to Petya ransomware infection, according to their latest quarterly results.
A Windows Object Linking Embedding (OLE) interface vulnerability in Microsoft PowerPoint in being exploited in order to install malware.
Interesting blog about the exploitation of a Foxit Reader.
"A tale about Foxit Reader - Safe Reading mode and other vulnerabilities"
Engineer decrypts Apple's Secure Enclave Processor (SEP) firmware.
Facebook awards $100,000 to 2017 Internet Defense Prize winning paper "Detecting Credential Spearphishing Attacks in Enterprise Settings". Very useful research for urgent topic.
Cryptographic library Libsodium has been audited by Matthew Green of Cryptography Engineering.
New research on integer factorization suggests that "build a massive decryption tool of IPsec traffic protected by the Oakley group~1 (a 768-bit discrete logarithm problem), was feasible in a reasonable time using technologies available before the year 2000." https://eprint.iacr.org/2017/758
EggShell is an iOS and macOS post exploitation surveillance pentest tool written in Python.
A new version of the Svpeng Android banking trojan is able to record everything users type on their devices. Crazy stuff.
Great blog by Kaspersky Lab about the steganography techniques used by malware for data exfiltration, covert communication.
Software researcher from Trail of Bits put Windows Defender to the sandbox.
Proofpoint researchers found a spear phishing campaign delivering Carbanak malware to the U.S. restaurant chains.
How to completely take over the ones online identity? This guy demonstrated that practically.
Airbnb released the open-source serverless framework for detecting malicious files called BinaryAlert. It uses YARA rules, and takes advantage of AWS Lambda functions for analysis instead of a traditional server architecture. Also uses Terraform to manage underlying infrastructure. Interesting project.
TrickBot malware added worm-like SMB spreading module popularized by WannaCry, Petya samples.
Analysis of the Juniper ScreenOS randomness subsystem backdoor Dual EC backdoor. Complex, Fascinating stuff.
From the research paper: "The more sophisticated of these vulnerabilities was a passive VPN decryption capability, enabled by a change to one of the elliptic curve points used by the Dual EC pseudorandom number generator"
Gophish is an open-source phishing toolkit designed for businesses and penetration testers. It provides the ability to quickly and easily setup and execute phishing engagements and security awareness training.
Cisco CSIRT has released GOSINT, open source threat intelligence gathering and processing framework.
A generic unpacker for packed Android applications released by the Check Point researchers.
Porn spam botnet consisting of more than 80,000 automated female Twitter accounts has been prompting millions of clicks from Twitter users to the various affiliate dating schemes (known as "partnerka").
Two malware families, NemucodAES ransomware and Kovter trojan are being distributed via email, pretending to be a delivery notice from the United Parcel Service.
Reyptson ransomware is using victim’s configured Thunderbird email account to execute spam distribution campaign against its contacts.
Android spyware targeting Iranians is using Telegram bot API to exfiltrate data to the remote server.
Trustwave SpiderLabs researchers discovered a zero-day vulnerability in Humax HG-100R WiFi Router, that could be exploited by attackers to compromise the WiFi credentials and obtain the router console administrative password.
Proofpoint analyzed Ovidiy Stealer, undocumented credential stealer, which is sold on the Russian-speaking forums.
Guido Vranken fuzzed FreeRADIUS source code and found 15 issues, four exploitable, and one of which is a remote code execution bug (RCE). Compile and upgrade now.
Humble Bundle is selling for next 12 days a lots of DRM-free cybersecurity books very cheaply.
WireGuard, fast, modern, secure VPN tunnel is now formally verified with the Tamarin equational theorem prover. Really powerful software.
Interesting USENIX paper on the security (and analysis) of bootloaders in mobile devices:
BootStomp: On the Security of Bootloaders in Mobile Devices
PyREBox is a Python scriptable Reverse Engineering sandbox developed by Cisco Talos. It is based on QEMU, and its goal is to aid reverse engineering by providing dynamic analysis and debugging capabilities from a different perspective.
WikiLeaks has published documents detailing two alleged CIA implants, BothanSpy and Gyrfalcon, designed to steal SSH credentials from Windows and Linux.
Popular article about the background of iPhone Jailbreaking. Really interesting.
Domains for an authoritative name servers of .io domain was free, so guy registered one, and published blog about the possibility of .io domains takeover.
The author of the original variant of the Petya ransomware has published the master key via Twitter.
Security researcher Nitay Artenstein has discovered a serious Broadcom Wi-Fi chip bug CVE-2017-9417.
Chinese researchers published an attack on a satellite phone encryption that enable them to decrypt communication encrypted by GMR-2 cipher in real-time.
API Security Checklist is the checklist of the most important security countermeasures when designing, testing, and releasing an online API.
Horcrux: A Password Manager for Paranoids is an research project and experimental implementation of a highly secure password manager. Credentials are secretshared over multiple servers, the passwords are filled by modifying outgoing POST requests.
The ExPetr/Petya ransomware which hits the Ukraine last week is actually a disk wiper. Victims are not able to decrypt their data, as the encryption key is not stored anywhere.
Blog with details about the remotely triggerable stack-based buffer overflow found in Avast Antivirus software last year.
Linux Systemd gives root privileges to usernames started with number.
WikiLeaks published a manual describing "OutlawCountry" Linux malware which redirects outgoing Internet traffic using netfilter, iptables. The second published is ELSA, a geo-location malware for WiFi-enabled devices running the Microsoft Windows operating system.
Security researcher Benjamin Kunz-Mejri discovered a Skype (7.2, 7.35, and 7.36) zero-day remote buffer overflow vulnerability CVE-2017-9948.
Great blog post about the problems of a certificate revocation, alternative solutions and how to do it better.
Blog about the novel reflective DLL injection technique called ThreadContinue which uses SetThreadContext() and NtContinue() API calls.
Ukrainian critical infrastructure, including banks, Kyiv’s metro system, the airport and the Chernobyl's radiation monitoring system, was hit by the worldwide malware campaign.
The attack is believed to be a new campaign by the group behind Petya ransomware. It takes advantage of the known SMB exploit (EternalBlue), and is spreading fast to the other countries.
Indian ATMs running outdated Windows XP are suffering jackpotting attack by the Rufus ATM malware.
Analysis of a new Marcher Android banking trojan variant which is posing as Adobe Flash Player Update.
The Russian government is threatening to ban Telegram messenger because it refused to be compliant with the data protection laws.
Bug hunter from Google, Tavis Ormandy, has found yet another serious vulnerability in the Microsoft's Malware Protection Engine.
The Hardware Forensic Database (HFDB) is a project of CERT-UBIK aiming at providing a collaborative knowledge base related to IoT Forensic methodologies and tools.
Good summary of the most common memory based attacker techniques such as shellcode injection, reflective DLL injection or process hollowing.