Monday, May 20, 2024

High-Severity RCE Security Bug Reported in Apache Cassandra Database Software

Researchers have revealed details of a now-patched high-severity security vulnerability in Apache Cassandra that, if left unaddressed, could be abused to gain remote code execution (RCE) on affected installations.

“This Apache security vulnerability is easy to exploit and has the potential to wreak havoc on systems, but luckily only manifests in non-default configurations of Cassandra,” Omer Kaspi, security researcher at DevOps firm JFrog, said in a technical write-up published Tuesday.

How to fix the Ace Vulnerability in Adobe After Effects

Apache Cassandra is an open-source, distributed, NoSQL database management system for managing very large amounts of structured data across commodity servers.

Tracked as CVE-2021-44521 (CVSS score: 8.4), the vulnerability concerns a specific scenario where the configuration for user-defined functions (UDFs) are enabled, effectively allowing an attacker to leverage the Nashorn JavaScript engine, escape the sandbox, and achieve execution of untrusted code.

Specifically, it was found that Cassandra deployments are vulnerable to CVE-2021-44521 when the cassandra.yaml configuration file contains the following definitions:

  • enable_user_defined_functions: true
  • enable_scripted_user_defined_functions: true
  • enable_user_defined_functions_threads: false

“When the [enable_user_defined_functions_threads] option is set to false, all invoked UDF functions run in the Cassandra daemon thread, which has a security manager with some permissions,” Kaspi said, thereby allowing the adversary to disable the security manager and break out of the sandbox and run arbitrary shell commands on the server.

Apache Cassandra users are encouraged to upgrade to versions 3.0.263.11.12, and 4.0.2 to avoid possible exploitation, which addresses the flaw by adding a new flag “allow_extra_insecure_udfs” that’s set to false by default and prevents turning off the security manager.

Recommended:  Remote Code Execution in pfSense <= 2.5.2

You may also enjoy reading, CVEs You May Have Missed While Log4J Stole The Headlines

Got to Cybersecurity News

Go to Homepage

Go to Cybersecurity Academy

Stay informed of the latest Cybersecurity trends, threats and developments. Sign up for RiSec Weekly Cybersecurity Newsletter Today

Remember, CyberSecurity Starts With You!

  • Globally, 30,000 websites are hacked daily.
  • 64% of companies worldwide have experienced at least one form of a cyber attack.
  • There were 20M breached records in March 2021.
  • In 2020, ransomware cases grew by 150%.
  • Email is responsible for around 94% of all malware.
  • Every 39 seconds, there is a new attack somewhere on the web.
  • An average of around 24,000 malicious mobile apps are blocked daily on the internet.
Bookmark
ClosePlease login
Share the word, let's increase Cybersecurity Awareness as we know it
- Sponsored -

Sponsored Offer

Unleash the Power of the Cloud: Grab $200 Credit for 60 Days on DigitalOcean!

Digital ocean free 200

Discover more infosec

User Avatar
Steven Black (n0tst3)
Hello! I'm Steve, an independent security researcher, and analyst from Scotland, UK. I've had an avid interest in Computers, Technology and Security since my early teens. 20 years on, and, it's a whole lot more complicated... I've assisted Governments, Individuals and Organizations throughout the world. Including; US DOJ, NHS UK, GOV UK. I'll often reblog infosec-related articles that I find interesting. On the RiSec website, You'll also find a variety of write-ups, tutorials and much more!

more infosec reads

Subscribe for weekly updates

explore

more

security