Dirty Pipe Linux Vulnerability: Overwriting Files in Container Images

Aqua Cloud Native Blog \ Tags: Container Security

SECURITY RESEARCH

Dirty Pipe Linux Vulnerability: Overwriting Files in Container Images

A new CVE in the Linux kernel was released this week. CVE-2022-0847, aka “Dirty Pipe”, is a vulnerability that allows users on a Linux system to overwrite the contents of files that they can read but shouldn’t be able to write to. Looking at this vulnerability from the perspective of hosts using containerization software such …

Adopting Zero Trust in Kubernetes: The Fundamentals

In late January, the White House published a memo that lays the groundwork for creating a zero-trust architecture for federal agencies. With renewed attention from the US government, zero-trust networking is an area that many organizations are focusing on to improve their security posture. With that focus, it makes sense to understand where these principles …

SECURITY RESEARCH

CVE-2022-0185 in Linux Kernel Can Allow Container Escape in Kubernetes

Last week, a new high-severity CVE was released that affects the Linux kernel. This vulnerability provides an opportunity for an attacker who has access to a system as an unprivileged user to escalate those rights to root. To do this, the attacker must have a specific Linux capability, CAP_SYS_ADMIN, which reduces the risk of breakout …

SECURITY RESEARCH

Threat Alert: Tracking Real-World Apache Log4j Attacks

This blog was co-authored with Ori Glassman, a security researcher at Aqua Security Until last week, Log4j was just a popular Java logging framework, one of the numerous components that run in the background of many modern web applications. But since a zero-day vulnerability (CVE-2021-44228) was published, Log4j has made a huge impact on the …

SOFTWARE SUPPLY CHAIN SECURITY

CVE-2021-45046: Second Log4j Security Vulnerability Discovered

Dec 17 update: The CVSSv3 score for CVE-2021-45046 has been raised from 3.7 to 9.0. While many organizations are still dealing with the discovery and mitigation process for the previous Log4j CVE, the project has announced that another vulnerability CVE-2021-45046 has been discovered due to an incomplete fix in Log4j 2.15.0. In response, a new …

SOFTWARE SUPPLY CHAIN SECURITY

CVE-2021-44228 aka Log4Shell Vulnerability Explained

Log4Shell, a new, critical zero-day vulnerability that crashed onto the scene last Friday, shows how issues that are hidden in seemingly basic functionality can have major repercussions for enterprise security. When the dust settles from the immediate incident response and remediation, organizations should assess how they can improve their detection and responses, because this vulnerability …

What You Need to Know About PCI DSS Compliance in Cloud Native

The Payment Card Industry Data Security Standard (PCI DSS) is a well-known compliance framework for any organization handling payment card data. However, translating the PCI DSS requirements into the world of containers and Kubernetes can be overwhelming. In this post, we break down how containerized applications impact PCI DSS compliance and how to meet its …

AQUA OPEN SOURCE

Golang Scanning with Trivy: Detect Vulnerabilities Accurately

A standard piece of security advice is to reduce the size of your container images, usually by using statically compiled binaries in a scratch or distroless container. However, that complicates container vulnerability scanning, because it becomes impossible to determine the versions of software installed in a container image. Fortunately, if you’re using Trivy, a popular …

SECURITY RESEARCH

Threat Actors Using release_agent Container Escape

Earlier this year, Aqua’s Team Nautilus detected a cryptocurrency mining campaign targeting our honeypots. As part of the campaign, the threat actors used a container escape technique that leverages the CGroup release_agent feature. This technique allows an attacker to break out from the container and compromise the host and, potentially, the entire network of an organization. …

SECURITY RESEARCH

The Great Escape: A Blast Radius Analysis of Container Attacks

In 2021, container attacks have been on the rise. We observed numerous attacks that were designed to escape container environments to the underlying host, increasing the impact of the attack. But how much damage can be caused when an attacker manages to escape a container? To answer this question, we conducted an analysis of real-world …

AQUA OPEN SOURCE

The Story of Tracee: The Path to Runtime Security Tool

eBPF technology is seeing strong growth, being widely adopted in the cloud native ecosystem for monitoring, networking, and security goals. At Aqua, along with being used in commercial products, eBPF powers our open source project Tracee to detect events in running containers.

SECURITY RESEARCH

Advanced Persistent Threat Techniques Used in Container Attacks

Aqua’s Team Nautilus detected an intensive campaign targeting cloud native environments that uses advanced persistent threat (APT) techniques usually leveraged by nation-state threat actors. As part of the campaign, the attackers used two types of rootkits to hide their presence and gain persistence over the victims’ systems. In this blog, we provide a deep analysis …

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Aqua Security is the pioneer in securing containerized cloud native applications from development to production. Aqua's full lifecycle solution prevents attacks by enforcing pre-deployment hygiene and mitigates attacks in real time in production, reducing mean time to repair and overall business risk. The Aqua Platform, a Cloud Native Application Protection Platform (CNAPP), integrates security from Code to Cloud, combining the power of agent and agentless technology into a single solution. With enterprise scale that doesn’t slow development pipelines, Aqua secures your future in the cloud. Founded in 2015, Aqua is headquartered in Boston, MA and Ramat Gan, IL protecting over 500 of the world’s largest enterprises.

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