2017 in Snort Signatures.

This post was written by Martin Lee and Vanja Svajcer. 2017 was an eventful year for cyber security with high profile vulnerabilities that allowed self-replicating worm attacks such as WannaCry and BadRabbit to impact organizations throughout the world. In 2017, Talos researchers discovered many...

Tutorial: Mutiny Fuzzing Framework and Decept Proxy

Here's a basic demo video for our new opensource tools, Decept and Mutiny. Happy New Year ^^ Lilith Recently, Talos released new tools to assist in the monumental task of finding vulnerabilities in network applications. Mutiny and Decept work together to help researchers fuzz quickly and...

Beers with Talos EP 19: The "Best" of BWT

Beers with Talos BWT Podcast Episode 19 is now available. Download this episode and subscribe to Beers with Talos: If iTunes and Google Play aren't your thing: www.talosintelligence.com/podcast EP19 Show Notes: Quotes intended, we think you know why. Mitch takes control to present the best of the...

VMSA-2017-0021:VMware ESXi, vCenter Server Appliance, Workstation and Fusion updates address multiple security vulnerabilities

VMSA-2017-0021 VMware ESXi, vCenter Server Appliance, Workstation and Fusion updates address multiple security vulnerabilities VMware Security Advisory VMware Security Advisory Advisory ID: VMSA-2017-0021 VMware Security Advisory Severity: Important VMware Security Advisory Synopsis: VMware ESXi,...

7zip CVE-2016-2334 HFS+ Code Execution Vulnerability

INTRODUCTION In 2016 Talos released an advisory for CVE-2016-2334, which was a remote code execution vulnerability affecting certain versions of 7zip, a popular compression utility. In this blog post we will walk through the process of weaponizing this vulnerability and creating a fully working...

Vulnerability Walkthrough: 7zip CVE-2016-2334 HFS+ Code Execution Vulnerability

This blog post was authored by Marcin Noga of Cisco Talos.IntroductionIn 2016 Talos released an advisory for CVE-2016-2334, which was a remote code execution vulnerability affecting certain versions of 7zip, a popular compression utility. In this blog post we will walk through the process of...

ROKRAT Reloaded

This post was authored by Warren Mercer, Paul Rascagneres and with contributions from Jungsoo An.Executive SummaryEarlier this year, Talos published 2 articles concerning South Korean threats. The first one was about the use of a malicious HWP document which dropped downloaders used to retrieve...

Talos Wins The 5th Volatility Plugin Contest With Pyrebox

Talos has won this year's 5th Volatility plugin contest with Pyrebox. Volatility is a well-known open-source framework designed to analyze operating system memory. The framework has existed since 2007. For the previous 5 years they have run a plugin contest to find the most innovative, interestin...

Multiple Vulnerabilities in LibXL Library Open Door to RCE Attacks

Researchers have identified seven vulnerabilities in the LibXL C library, used to read Excel files. Each of the vulnerabilities are rated 8.8 in severity on the Common Vulnerability Scoring System scale. Attackers could exploit each of the vulnerabilities and perform remote code execution attacks...

Threat Round Up for Nov 10 - Nov 17

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between November 10 and November 17. As with previous round-ups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavior...

Vulnerability Spotlight: Multiple Vulnerabilities in Foscam C1 Indoor HD Cameras

These vulnerabilities were discovered by Claudio Bozzato of Cisco Talos.Executive SummaryThe Foscam C1 Indoor HD Camera is a network-based camera that is marketed for use in a variety of applications, including use as a home security monitoring device. Talos recently identified several...

Circle with Disney Backup API Command Injection Vulnerability(CVE-2017-2866)

Summary An exploitable vulnerability exists in the /api/CONFIG/backup functionality of Circle with Disney. Specially crafted network packets can cause an OS command injection. An attacker can send an HTTP request trigger this vulnerability. Tested Versions Circle with Disney Product URLs...

Circle with Disney Weak Authentication Vulnerability(CVE-2017-2864)

Summary An exploitable vulnerability exists in the generation of authentication token functionality of Circle with Disney. Specially crafted network packets can cause a valid authentication token to be returned to the attacker resulting in authentication bypass. An attacker can send a series of...

Beers with Talos EP 16: Strong Copy - Bad Rabbit and the Nyetya Connection

Beers with Talos BWT Podcast Episode 16 is now available. Download this episode and subscribe to Beers with Talos:img border="0" data-original-height="45" data-original-width="160" src="https://2.bp.blogspot.com/-E-RSSZ9jbUY/WaWCkLGZnZI/AAAAAAAAAJE/Ciiz-Si...

Updated sdl2 packages fix security vulnerability

Yves Younan of Cisco Talos discovered an exploitable integer overflow vulnerability when creating a new RGB Surface in SDL 2.0.x before version 2.0.7. A specially crafted file can cause an integer overflow resulting in too little memory being allocated which can lead to a buffer overflow and...

Popular ‘Circle with Disney’ Parental Control System Riddled With 23 Vulnerabilities

The makers of the popular parental control system called Circle with Disney patched 23 vulnerabilities over the weekend. The bugs ran the gamut from memory corruption and denial of service, to SSL validation vulnerabilities and impact all devices managed on a network. Circle with Disney is a $90...

Bad Rabbit Ransomware Uses Leaked 'EternalRomance' NSA Exploit to Spread

A new widespread ransomware worm, known as "Bad Rabbit," that hit over 200 major organisations, primarily in Russia and Ukraine this week leverages a stolen NSA exploit released by the Shadow Brokers this April to spread across victims' networks. Earlier it was reported that this week's...

Vulnerability Spotlight: Apache OpenOffice Vulnerabilities

Discovered by Marcin ‘Icewall’ Noga of Cisco TalosOverviewToday, Talos is releasing details of three new vulnerabilities discovered within Apache OpenOffice application. The first vulnerability, TALOS-2017-0295 within OpenOffice Writer, the second TALOS-2017-0300 in the Draw application, and the...

Threat Spotlight: Follow the Bad Rabbit

Note: This blog post discusses active research by Talos into a new threat. This information should be considered preliminary and will be updated as research continues.Update 2017-10-26 16:10 EDT: added additional information regarding the links between Nyetya and BadRabbitUpdate 2017-10-26 09:20...

“Cyber Conflict” Decoy Document Used In Real Cyber Conflict

This post was authored by Warren Mercer, Paul Rascagneres and Vitor VenturaUpdate 10/23: CCDCOE released a statement today on their websiteIntroductionCisco Talos discovered a new malicious campaign from the well known actor Group 74 aka Tsar Team, Sofacy, APT28, Fancy Bear…. Ironically the decoy...