Linguistic Lumberjack: Understanding CVE-2024-4323 in Fluent Bit

Aqua Nautilus Research Blog

Nautilus focuses on cybersecurity research of the cloud native stack, missioned to uncover new vulnerabilities, threats and attacks that target containers, Kubernetes, serverless, and public cloud infrastructure.

SECURITY RESEARCH

Linguistic Lumberjack: Understanding CVE-2024-4323 in Fluent Bit

Linguistic Lumberjack is a new critical severity vulnerability (CVE-2024-4323) that affects Fluent Bit versions 2.0.7 through 3.0.3. The vulnerability involves a memory corruption error, potentially leading to denial of service, information disclosure, or remote code execution.

SECURITY RESEARCH

Employee Personal GitHub Repos Expose Internal Azure and Red Hat Secrets

Security Threat

What happens when employees at some of the world’s largest organizations like Microsoft and RedHat use personal GitHub repos for their side projects? They can unknowingly expose corporate secrets and credentials opening the doors for a security incident. Unfortunately, this isn’t just a hypothetical situation.

SECURITY RESEARCH

Lucifer DDoS botnet Malware is Targeting Apache Big-Data Stack

Aqua Nautilus has unveiled a new campaign targeting Apache big-data stack, specifically Apache Hadoop and Apache Druid. Upon investigation, it was discovered that the attacker exploits existing misconfigurations and vulnerabilities within our Apache cloud honeypots to execute the attacks.

SECURITY RESEARCH

Snap Trap: The Hidden Dangers Within Ubuntu’s Package Suggestion System

Aqua Nautilus researchers have identified a security issue that arises from the interaction between Ubuntu’s command-not-found package and the snap package repository. While command-not-found serves as a convenient tool for suggesting installations for uninstalled commands, it can be inadvertently manipulated by attackers through the snap repository, leading to deceptive recommendations of malicious packages. Additionally, our …

SECURITY RESEARCH

Mitigating Leaky Vessels Vulnerabilities in runc, BuildKit and Moby with Aqua

On January 31, 2024, researchers revealed the discovery of four severe security vulnerabilities in the container ecosystem. These vulnerabilities, affecting key components including runc, BuildKit, Moby (Docker Engine), and Docker Desktop, pose significant risks to the security and integrity of applications that use containerization applications.

SECURITY RESEARCH

HeadCrab 2.0: Evolving Threat in Redis Malware Landscape

At the beginning of 2023, Aqua Nautilus researchers uncovered HeadCrab – an advanced threat actor utilizing a state-of-the-art, custom-made malware that compromised 1,200 Redis servers. As you know in the ever-evolving world of cybersecurity, threat actors continually adapt and refine their techniques. Recently, our researchers detected a new version of the HeadCrab malware targeting our …

SECURITY RESEARCH

The Gaps in Open Source Governance That Threaten the Software Supply Chain

Security Threat

The widespread issue of unmaintained and deprecated npm packages recently discovered by Aqua researchers affects more than a fifth of open source packages. Presenting yet another silent example of hidden threats to the software supply chain, it demonstrates how poor operational and structural integrity of dependencies can be just as risky as code vulnerabilities, while …

SECURITY RESEARCH

Deceptive Deprecation: The Truth About npm Deprecated Packages

Researchers at Aqua Nautilus found that 8.2% percent of the most downloaded npm packages are officially deprecated, but due to inconsistent practices in handling package dependencies, the real number is much larger, closer to 21.2%. Moreover, some package maintainers, when confronted with security flaws, deprecate their packages instead of reporting them, getting a CVE assigned …

SECURITY RESEARCH

Apache Applications Targeted by Stealthy Attacker

Researchers at Aqua Nautilus have uncovered a new attack targeting Apache Hadoop and Flink applications. This attack is particularly intriguing due to the attacker’s use of packers and rootkits to conceal the malware. The simplicity with which these techniques are employed presents a significant challenge to traditional security defenses.

SECURITY RESEARCH

The Ticking Supply Chain Attack Bomb of Exposed Kubernetes Secrets

Exposed Kubernetes secrets pose a critical threat of supply chain attack. Aqua Nautilus researchers found that the exposed Kubernetes secrets of hundreds of organizations and open-source projects allow access to sensitive environments in the Software Development Life Cycle (SDLC) and open a severe supply chain attack threat. Among the companies were SAP’s Artifacts management system …

SECURITY RESEARCH

50 Shades of Vulnerabilities: Uncovering Flaws in Open-Source Vulnerability Disclosures

Aqua Nautilus researchers evaluated the vulnerability disclosure process for tens of thousands of open-source projects and found flaws in the process. These flaws allowed harvesting the vulnerabilities before they were patched and announced. This could enable attackers to exploit security holes before the project’s users are alerted.

SECURITY RESEARCH

Looney Tunables Vulnerability Exploited by Kinsing

Researchers from Aqua Nautilus have successfully intercepted Kinsing’s experimental incursions into cloud environments. Utilizing a rudimentary yet typical PHPUnit vulnerability exploit attack, a component of Kinsing’s ongoing campaign, we have uncovered the threat actor’s manual efforts to manipulate the Looney Tunables vulnerability (CVE-2023-4911). This marks the first documented instance of such an exploit, to the …

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