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Vulnerability in Tencent WeChat custom browser could lead to remote code execution

While this issue was disclosed and patched in the V8 engine in June 2023, the WeChat Webview component was not updated, and still remained vulnerable when Talos reported it to the vendor.

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#vulnerability#web#android#apple#google#linux#cisco#git#java#rce#chrome#webkit
Watch our new documentary, "The Light We Keep: A Project PowerUp Story"

The Light We Keep documentary tells the story of the consequences of electronic warfare in Ukraine and its effect on power grids across the country.

Threat actors using MacroPack to deploy Brute Ratel, Havoc and PhantomCore payloads

The threat of VBA macros has diminished since Microsoft prevented the execution of macros in Microsoft Office documents downloaded from the internet, but not all users are using the latest up-to-date Office versions and can still be vulnerable.

What kind of summer has it been?

As we head into the final third of 2024, we caught up with Talos' Nick Biasini to ask him about the biggest shifts and trends in the threat landscape so far. Turns out, he has two major areas of concern.

The vulnerabilities we uncovered by fuzzing µC/OS protocol stacks

Fuzzing has long been one of our favorite ways to search for security issues or vulnerabilities in software, but when it comes to fuzzing popular systems used in ICS environments, it traditionally involved a custom hardware setup to fuzz the code in its native environment.

Fuzzing µCOS protocol stacks, Part 2: Handling multiple requests per test case

This time, I’ll discuss why this approach is more challenging than simply substituting a socket file descriptor with a typical file descriptor.

Fuzzing µC/OS protocol stacks, Part 1: HTTP server fuzzing

Any vulnerability in an RTOS has the potential to affect many devices across multiple industries.

Fuzzing µC/OS protocol stacks, Part 3: TCP/IP server fuzzing, implementing a TAP driver

This is the final post in the three-part series that details techniques I used to fuzz two µC/OS protocol stacks: µC/TCP-IP and µC/HTTP-server.

BlackByte blends tried-and-true tradecraft with newly disclosed vulnerabilities to support ongoing attacks

In recent investigations, Talos Incident Response has observed the BlackByte ransomware group using techniques that depart from their established tradecraft. Read the full analysis.