Beers with Talos, Ep. #111: We say goodbye to Craig and his killer robots

Beers with Talos BWT Podcast episode No. 111 is now available. Download this episode and subscribe to Beers with Talos: Apple Podcasts Google Podcasts Spotify StitcherIf iTunes and Google Play aren't your thing, click here. We apologize for holding onto this... This is only the beginning! Please...

Talos Takes Ep. #77: How to connect to (and safely use) public WiFi

By Jon Munshaw. The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. Whenever we walk into a bar or restaurant, it's almost a given that we're going to ask the bartender or server:... This is...

Talos’ tips for staying safe while shopping online this holiday season

By Jon Munshaw. Attackers will resort to all tactics to trick users into downloading malware, handing over credit card data or completing compromising their machine. No topic is off-limits, and threat actors have resorted to using everything from PlayStation 5 sales, to COVID-19 cures... This is...

Vulnerability Spotlight: Use-after-free vulnerability in Google Chrome could lead to code execution

Marcin Towalski of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered an exploitable use-after-free vulnerability in Google Chrome. Google Chrome is a cross-platform web browser — and Chromium is the open-source version of the... This is only the...

Vulnerability Spotlight: Multiple code execution vulnerabilities in LibreCAD

Lilith of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered three vulnerabilities in LibreCAD’s libdfxfw open-source library. This library reads and writes .dxf and .dwg files — the primary file format for vector graphics in CAD... This is only the...

LibreCad libdxfrw dwgCompressor::copyCompBytes21 heap-based buffer overflow vulnerability

Talos Vulnerability Report TALOS-2021-1350 LibreCad libdxfrw dwgCompressor::copyCompBytes21 heap-based buffer overflow vulnerability November 17, 2021 CVE Number CVE-2021-21899 SUMMARY A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw...

Vulnerability Spotlight: Vulnerabilities in Lantronix PremierWave 2050 could lead to code execution, file deletion

Matt Wiseman discovered these vulnerabilities. Blog by Jon Munshaw. Cisco Talos recently discovered multiple vulnerabilities in Lantronix’s PremierWave 2050, an embedded Wi-Fi module. There are several vulnerabilities in PremierWave 2050’s Web Manager, a web-accessible application that... This is...

Lantronix PremierWave 2050 Web Manager File Upload directory traversal vulnerability

Summary A directory traversal vulnerability exists in the Web Manager File Upload functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted HTTP request can lead to arbitrary file overwrite. An attacker can make an authenticated HTTP request to trigger this vulnerability. Tested...

Lantronix PremierWave 2050 Web Manager FsMove directory traversal vulnerability

Summary A directory traversal vulnerability exists in the Web Manager FsMove functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially crafted HTTP request can lead to local file inclusion. An attacker can make an authenticated HTTP request to trigger this vulnerability. Tested Versions...

Lantronix PremierWave 2050 Web Manager FsTFtp directory traversal vulnerability

Summary A directory traversal vulnerability exists in the Web Manager FsTFtp functionality of Lantronix PremierWave 2050 8.9.0.0R4 in QEMU. A specially crafted HTTP request can lead to arbitrary file overwrite and arbitrary file disclosure. An attacker can make an authenticated HTTP request to...

Lantronix PremierWave 2050 Web Manager FsUnmount OS command injection vulnerability

Summary An OS command injection vulnerability exists in the Web Manager FsUnmount functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability. Test...

Lantronix PremierWave 2050 Web Manager Applications and FsBrowse local file inclusion vulnerability

Summary A local file inclusion vulnerability exists in the Web Manager Applications and FsBrowse functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted series of HTTP requests can lead to local file inclusion. An attacker can make a series of authenticated HTTP requests to...

Threat Roundup for November 5 to November 12

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 5 and Nov. 12. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

Talos Takes Ep. #76: What is Kimsuky phishing around for?

By Jon Munshaw. The latest episode of Talos Takes is available now. Download this episode and subscribe to Talos Takes using the buttons below, or visit the Talos Takes page. Blog posts aren't just for sharing your darkest secrets from high school anymore. They're also used by attackers to... Thi...

Cisco Talos finds 10 vulnerabilities in Azure Sphere’s Linux kernel, Security Monitor and Pluton

By Claudio Bozzato and Lilith --;. Following our previous engagements see blog posts 1, 2, 3 and 4 with Microsoft's Azure Sphere IoT platform, we decided to take another look at the device, without all the rush and commotion that normally entails a hacking challenge. Today, we’re... This is only...

Zebra2104 Initial Access Broker Supports Rival Malware Gangs, APTs

Three separate threat groups are all using a common initial access broker IAB to enable their cyberattacks, according to researchers – a finding that has revealed a tangled web of related attack infrastructure underpinning disparate and in some cases rival malware campaigns. The BlackBerry Resear...

Threat Roundup for October 29 to November 5

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Oct. 29 and Nov. 5. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

‘Tortilla’ Wraps Exchange Servers in ProxyShell Attacks

A new-ish threat actor sometimes known as “Tortilla” is launching a fresh round of ProxyShell attacks on Microsoft Exchange servers, this time with the aim of inflicting vulnerable servers with variants of the Babuk ransomware. Cisco Talos researchers said in a Wednesday report that they spotted...

Threat Roundup for October 22 to October 29

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Oct. 22 and Oct. 29. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

New Wslink Malware Loader Runs as a Server and Executes Modules in Memory

Cybersecurity researchers on Wednesday took the wraps off a "simple yet remarkable" malware loader for malicious Windows binaries targeting Central Europe, North America and the Middle East. Codenamed "Wslink" by ESET, this previously undocumented malware stands apart from the rest in that it run...