Wallarm API Security Wallarm updates logo

Wallarm updates

Discover the latest features, improvements, and updates in Wallarm API Security

Subscribe to Updates

Labels

  • All Posts
  • API Security
  • WAAP
  • ANNOUNCEMENT
  • IMPROVEMENT
  • FIX
  • FAST

Jump to Month

  • May 2025
  • April 2025
  • March 2025
  • February 2025
  • January 2025
  • November 2024
  • October 2024
  • September 2024
  • August 2024
  • July 2024
  • June 2024
  • May 2024
  • April 2024
  • March 2024
  • February 2024
  • January 2024
  • December 2023
  • November 2023
  • October 2023
  • September 2023
  • August 2023
  • July 2023
  • June 2023
  • May 2023
  • April 2023
  • March 2023
  • February 2023
  • January 2023
  • December 2022
  • November 2022
  • October 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • May 2022
  • March 2022
  • February 2022
  • December 2021
  • November 2021
  • October 2021
  • August 2021
  • April 2021
  • March 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • December 2019
  • October 2019
  • August 2019
  • April 2019
ANNOUNCEMENT
3 years ago

Update on Log4Shell (CVE-2021-44228)

Quick update

  • Wallarm has rolled out the update to detect and mitigate CVE-2021-44228.
  • No additional actions are required from the customers
  • Attempts at exploitation will be automatically blocked in a blocking mode
  • When working in a monitoring mode, consider creating a virtual patch

Log4Shell

A 0-day exploit in the Java core library log4j was discovered that results in Remote Code Execution (RCE) by simple 1-line exploit with JNDI url. Given how ubiquitous this library is, the impact of the exploit (full server control), and how easy it is to exploit, the impact of this vulnerability is quite severe. Read more.

The attack surface is very wide, since it’s almost impossible to find any single Java project without the log4j library enabled. It affects internal services and APIs that are based on Java and uses other API and application data to log them.

Wallarm update

Wallarm automatically identifies attempts of the Log4Shell exploitation and logs these attempts in the Wallarm Console. Corresponding changes have been added within two hours after the first information about CVE-2021-44228 has been published.

image.png

You can search for the relevant events by using filter by CVE:

image.png

Mitigation

When using Wallarm in blocking mode, these attacks will be automatically blocked. No actions required.

When using a monitoring mode, we suggest creating a virtual patch. Feel free to reach out to support@wallarm.com if you need assistance.

Avatar of authorWallarm team