• Menu
  • Skip to main content
  • Skip to primary sidebar

The Cyber Security News

Latest Cyber Security News

Header Right

  • Latest News
  • Vulnerabilities
  • Cloud Services
Cyber Security News

New Vulnerability in CRI-O Engine Lets Attackers Escape Kubernetes Containers

You are here: Home / General Cyber Security News / New Vulnerability in CRI-O Engine Lets Attackers Escape Kubernetes Containers
March 17, 2022

Vulnerability

A freshly disclosed security vulnerability in the Kubernetes container engine CRI-O known as cr8escape could be exploited by an attacker to crack out of containers and receive root access to the host.

“Invocation of CVE-2022-0811 can let an attacker to complete a wide variety of actions on aims, which includes execution of malware, exfiltration of facts, and lateral movement across pods,” CrowdStrike researchers John Walker and Manoj Ahuje reported in an evaluation released this week.

✔ Approved Seller From Our Partners
Malwarebytes Premium 2022

Protect yourself against all threads using Malwarebytes. Get Malwarebytes Premium with 60% discount from a Malwarebytes official seller SerialCart® (Limited Offer).

➤ Activate Your Coupon Code


A lightweight option to Docker, CRI-O is a container runtime implementation of the Kubernetes Container Runtime Interface (CRI) which is employed to pull container illustrations or photos from registries and start an Open up Container Initiative (OCI)-appropriate runtime these types of as runC to spawn and operate container procedures.

Automatic GitHub Backups

The vulnerability is rated 8.8 on the CVSS vulnerability scoring method and influences CRI-O versions 1.19 and later. Following liable disclosure, patches have been produced to tackle the flaw in version 1.23.2 shipped on March 15, 2022.

CVE-2022-0811 stems from a code improve introduced in variation1.19 to established kernel alternatives for a pod, ensuing in a situation wherever a poor actor with permissions to deploy a pod on a Kubernetes cluster making use of the CRI-O runtime can choose advantage of the “kernel.main_pattern” parameter to accomplish container escape and arbitrary code execution as root on any node in the cluster.

The parameter “kernel.core_sample” is employed to specify a sample identify for a main dump, which is a file that contains the memory snapshot of a software at a distinct time which is normally activated in response to unexpected crashes or when the course of action terminates abnormally.

Prevent Data Breaches

“If the 1st character of the pattern is a ‘|’ [a pipe], the kernel will treat the rest of the sample as a command to run. The main dump will be composed to the conventional input of that program rather of to a file,” reads the Linux kernel documentation.

Thus, by location this alternative to stage to a destructive shell script and triggering a main dump, the vulnerability leads to the invocation of the script, efficiently reaching remote code execution and granting the adversary the ability to get in excess of the node.

“Kubernetes is not essential to invoke CVE-2022-8011,” the researchers pointed out. “An attacker on a device with CRI-O installed can use it to established kernel parameters all by by itself.”

Located this short article intriguing? Adhere to THN on Facebook, Twitter  and LinkedIn to go through a lot more special content material we publish.


Some components of this post are sourced from:
thehackernews.com

Previous Post: «Cyber Security News Sioux Falls Funds DSU Cybersecurity Lab

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Report This Article

Recent Posts

  • New Vulnerability in CRI-O Engine Lets Attackers Escape Kubernetes Containers
  • Sioux Falls Funds DSU Cybersecurity Lab
  • ‘CryptoRom’ Crypto-Scam is Back via Side-Loaded Apps
  • Irish Watchdog Fines Meta $19m Over Data Breach
  • Avast Merger Raises Competition Concerns
  • Linux botnet spreads using Log4Shell flaw
  • Another Destructive Wiper Targets Organizations in Ukraine
  • New “B1txor20” Linux Botnet Uses DNS Tunnel and Exploits Log4J Flaw
  • New Infinite Loop Bug in OpenSSL Could Let Attackers Crash Remote Servers
  • FBI, CISA Warn of Russian Hackers Exploiting MFA and PrintNightmare Bug

Copyright © TheCyberSecurity.News, All Rights Reserved.