Here at Snyk, we spend a lot of time researching vulnerabilities. We do that because there are a lot of other folks out there researching new ways to break into apps and systems. We’re often putting on our “grey hats” to think like a malicious hacker. I regularly view-source, look at network traffic and eyeball query strings. One such delicious little query string caught my attention this week on one of the many copycat Wordle sites.
In the latter part of December 2021, WhiteSource Diffend detected the new release of a package called @maui-mf/app-auth. This package used a vector of attack that was similar to the server side request forgery (SSRF) attack against Capital One in 2019, in which a server was tricked into executing commands on behalf of a remote user, thereby enabling the user to treat the server as a proxy for requests and gain access to non-public endpoints.
The Payment Card Industry Data Security Standard (PCI DSS) entered the scene back in 2004 with the rise of payment fraud. Created by leaders in the credit card industry, PCI DSS was developed to provide a baseline of technical and operational requirements designed to protect cardholder payment data and was commonly understood by those in the legacy security world.
Snyk’s developer security platform provides developers and security professionals with the tools they need to build and operate modern applications securely. Snyk enables users to shift security left and to embrace a DevSecOps model. Modern application development teams understand that shifting left means bringing information to developers’ fingertips as early as possible in the development process to create efficient and secure applications and development processes.
A number of security vulnerabilities have been identified on the popular freeware, Samba, which implements the Server Message Block (SMB) protocol that allows users to access files, printers, and other commonly shared resources over a network. These flaws enable remote attackers the ability to execute arbitrary code with the highest privileges on affected installations. The most prominent is CVE-2021-44142, which affects all versions of Samba before 4.13.17.
This article will explore methods for “hiding” SSH servers so that the server is harder to discover by malicious users on public networks. We’ll focus on changing the default SSH port and implementing SSH port knocking to make it more difficult for unwanted users to discover or locate the server.
Last week, a critical vulnerability identified as CVE-2022-0185 was disclosed, affecting Linux kernel versions 5.1 to 5.16.1. The security vulnerability is an integer underflow in the Filesystem Context module that allows a local attacker to run arbitrary code in the context of the kernel, thus leading to privilege escalation, container environment escape, or denial of service.
