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Security Vulnerabilities
Razer Synapse 3’s incorrect permissions assignment vulnerability is allows for Denial of Service (DoS) attacks. This CVE-2021-30494 affects version 3.5.1030.101917.
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April Brown
reversing windows named pipe servers
In the last iteration of our four-part series, VerSprite’s security researchers examine real-world examples of reversing and exploiting Windows named pipe servers within applications using a custom vulnerable application. The methods covered to achieve this goal is through static analysis.
Robert Hawes
Ematic Router Backdoor
A web-accessible backdoor was found in affordable Wi-Fi routers sold at Walmart, eBay, and Amazon. In this article, VerSprite experts explore the backdoor vulnerability investigation and provide mitigation solutions.
Peter Vogelberger
In part three of this four-part series, VerSprite’s security researchers examine real-world examples of reversing and exploiting Windows named pipe servers within applications using a custom vulnerable application. The methods covered to achieve this goal is through using both dynamic analysis and static analysis.
Exploitation of Vulnerabilities
What is responsible disclosure? In this article, VerSprite will outline a typical process for zero-day vulnerability reporting, the ethics behind hacking, and provide real-world examples of our responsible disclosures.
VerSprite
Have you ever come across undocumented Windows structures that need to be reverse-engineered in order to perform a vulnerability analysis? In this post, we will demonstrate how to update these using IDA Pro and HexRays Decompiler for the ESTROBJ and STROBJ structures on Windows 10 x64.
Grant Willcox
Windows Userland Exploitation
VerSprite recently investigated CVE-2019-1169, a NULL pointer dereference vulnerability in win32k.sys that Microsoft fixed in the August 2019 patch update. This led to the creation of a working exploit which can successfully leak data from arbitrary kernel addresses on affected Windows 7 machines.
After investigating an information leak within Windows 10 in more detail, we decided to see how feasible it would be for an attacker to create an IDAPython script that could discover CVE-2019-1436 and other similar memory leaks automatically.
Named Pipe Servers
In part II of this three-part series, we dive deeper into hands on examples of identifying usage of named pipe servers within applications using a custom vulnerable application. The methods covered to achieve this goal is through usage of both dynamic and static analysis.
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