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Log4Shell CVE-2021-44228

On December 10th, 2021, the National Vulnerability Database (NVD) published the CVE-2021-44228 documenting a vulnerability in the Apache log4j library Java Naming and Directory Interface (JNDI) lookup feature allowing for remote code execution by an attacker who is able to manipulate log messages. A proof of concept was released on December 9th, 2021, and active scanning and exploitation attempts have increased through the time of the publishing of this brief.

URGENT: Analysis and Remediation Guidance to the Log4j Zero-Day RCE (CVE-2021-44228) Vulnerability

A previously unknown zero-day vulnerability in Log4j 2.x has been reported on December 9, 2021. If your organization deploys or uses Java applications or hardware running Log4j 2.x your organization is likely affected.

Start Your Zero Trust Journey With the Gartner SASE Roadmap

Here’s the reality: hybrid and remote work are here to stay. This means access to your corporate data can now come from anywhere, on any device and any network. In order to tackle this new norm, Gartner has defined a new cybersecurity framework called Secure Access Service Edge (SASE).

Securing your M365 journey: Stopping the additional 30% of email security risks

The way in which we respond to email security risks needs to change. It’s no longer a case of reinforcing the network perimeter. The risks are now far more complex and nuanced, driven by human behaviour. From every conversation we have, Security and IT leaders tell us that people: These are a combination of both inbound and outbound threats but what they have in common is that they are human-activated risks – there’s a person behind each of them.

CyRC Vulnerability Analysis: Remote code execution zero-day exploit in Java logging library (log4j2)

The NVD currently lacks a CVSS score for this vulnerability, but the Synopsys Cybersecurity Research Center (CyRC) has issued a corresponding Black Duck® Security Advisory (BDSA), and assigned a CVSS score of 9.1, with links to proof-of-concept exploits. A dangerous, zero day exploit has been identified in log4j, a popular Java logging library. Apache log4j/log4j2 is broadly used within the Java community to implement application logging.

Active Directory Lateral Movement Detection: Threat Research Release, November 2021

The Splunk Threat Research Team recently updated the Active Directory Lateral Movement analytic story to help security operations center (SOC) analysts detect adversaries executing these techniques within Windows Active Directory (AD) environments. In this blog post, we’ll describe some of the detection opportunities available to cyber defenders and highlight detections from the analytic story.

Log Jammin'- Detecting Log4j 2 RCE Using Splunk

Authors and Contributors: As always, security at Splunk is a family business. Credit to authors and collaborators: Ryan Kovar, Shannon Davis, Marcus LaFerrera, John Stoner, James Brodsky, Dave Herrald, Audra Streetman, Johan Bjerke, Drew Church, Mick Baccio, Lily Lee, Tamara Chacon, Ryan Becwar. If you want just to see how to find detections for the Log4j 2 RCE, skip down to the “detections” sections.

Continuous REST API Testing With CI Fuzz

CI Fuzz is a platform for automated security testing that aims to enable developers to ship secure software fast. The platform empowers development teams to automatically deploy continuous REST API security tests with each pull request. Since it enables the instrumentation of entire web service environments, CI Fuzz can create test inputs that are guided by code coverage. This enables it to uncover complex vulnerabilities and edge cases that other tools often overlook.

Developing a risk-based approach to cybersecurity in the hybrid workforce model

The hybrid workforce model is a novel workplace trend that provides employees the freedom to work from their homes while occasionally reporting to their offices. At the onset of the COVID-19 pandemic, organizations all over the world were forced to adopt remote working, or work-from-home, as the new norm. However, as organizations are gradually beginning to accommodate employees in their office spaces, a blended workplace model has become indispensable.