Hunting Rootkits with eBPF: Detecting Linux Syscall Hooking Using Tracee

Aqua Cloud Native Blog \ Tags: Host Security

SECURITY RESEARCH

Hunting Rootkits with eBPF: Detecting Linux Syscall Hooking Using Tracee

Today, cloud native platforms are increasingly using eBPF-based security technology. It enables the monitoring and analysis of applications’ runtime behavior by creating safe hooks for tracing internal functions and capturing important data for forensic purposes. Tracee is an open source runtime security and forensics tool for Linux that is powered by eBPF and is more …

SECURITY RESEARCH

CVE-2021-3156 sudo Vulnerability Allows Root Privileges

A new severe vulnerability was found in Unix and Linux operating systems that allows an unprivileged user to exploit this vulnerability using sudo, causing a heap overflow to elevate privileges to root without authentication, or even get listed in the sudoers file. In this blog, I’ll go over how this CVE can be exploited, what …

SECURITY RESEARCH

CVE-2019-14287 sudo Vulnerability Allows Bypass of User Restrictions

A new vulnerability was discovered earlier this week in the sudo package. Sudo is one of the most powerful and commonly used utilities installed on almost every UNIX and Linux-based operating system.

SECURITY RESEARCH

Mitigating High Severity RunC Vulnerability (CVE-2019-5736)

Yesterday it was disclosed that a new high severity (CVSS score 7.2) vulnerability (CVE-2019-5736) was found in runc, that allows an attacker to potentially compromise the container host. Patches are already available from most providers (see below). Aqua customers can also prevent this vulnerability from being exploited by applying the appropriate runtime policies.

CONTAINER SECURITY

Preventing Container Breakouts with Dynamic System Call Profiling

Recently, IBM researchers weighed in on container isolation, having developed an algorithm for measuring how well it works, and reached the conclusion that “a Docker container with a well crafted seccomp profile (which blocks unexpected system calls) provides roughly equivalent security to a hypervisor.“

SECURITY RESEARCH

Bugs Gone Wild: Container (Stack) Clash and CVE-2017-1000253

A Stack Clash is a vulnerability in the memory management of several operating systems, including Linux. It can be exploited by attackers to corrupt memory of a privileged process in order to execute arbitrary code.

SECURITY RESEARCH

Dirty COW Vulnerability: Impact on Containers

There has been plenty of buzz lately regarding an old-new privilege escalation vulnerability, adorably named “Dirty COW” after the Copy-On-Write memory protection in the Linux kernel. The whole thing started roughly eleven years ago, when a kernel developer left a race condition issue opened: “This is an ancient bug that was actually attempted to be …

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Aqua Security stops cloud native attacks across the application lifecycle and is the only company with a $1M Cloud Native Protection Warranty to guarantee it. As the pioneer in cloud native security, Aqua helps customers reduce risk while building the future of their businesses. The Aqua Platform is the industry's most integrated Cloud Native Application Protection Platform (CNAPP), protecting the application lifecycle from code to cloud and back. Founded in 2015, Aqua is headquartered in Boston, MA and Ramat Gan, IL with Fortune 1000 customers in over 40 countries.

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