Netskope named a Leader in the 2022 Gartner® Magic Quadrant™ for Security Service Edge. Get the Report.

  • Products

    Netskope products are built on the Netskope Security Cloud.

  • Platform

    Unrivaled visibility and real-time data and threat protection on the world's largest security private cloud.

Netskope Named a Leader in the 2022 Gartner Magic Quadrant™ for SSE Report

Get the report Go to Products Overview
Netskope gartner mq 2022 sse leader

Netskope delivers a modern cloud security stack, with unified capabilities for data and threat protection, plus secure private access.

Explore our platform
Birds eye view metropolitan city

Make the move to market-leading cloud security services with minimal latency and high reliability.

Learn more
Lighted highway through mountainside switchbacks

Prevent threats that often evade other security solutions using a single-pass SSE framework.

Learn more
Lighting storm over metropolitan area

Zero trust solutions for SSE and SASE deployments

Learn more
Boat driving through open sea

Netskope enables a safe, cloud-smart, and fast journey to adopt cloud services, apps, and public cloud infrastructure.

Learn more
Wind turbines along cliffside
  • Customer Success

    Secure your digital transformation journey and make the most of your cloud, web, and private applications.

  • Customer Support

    Proactive support and engagement to optimize your Netskope environment and accelerate your success.

  • Training and Certification

    Netskope training will help you become a cloud security expert.

Trust Netskope to help you address evolving threats, new risks, technology shifts, organizational and network changes, and new regulatory requirements.

Learn more
Woman smiling with glasses looking out window

We have qualified engineers worldwide, with diverse backgrounds in cloud security, networking, virtualization, content delivery, and software development, ready to give you timely, high-quality technical assistance.

Learn more Support Portal
Bearded man wearing headset working on computer

Secure your digital transformation journey and make the most of your cloud, web, and private applications with Netskope training.

Learn more
Group of young professionals working
  • Resources

    Learn more about how Netskope can help you secure your journey to the cloud.

  • Blog

    Learn how Netskope enables security and networking transformation through security service edge (SSE).

  • Events & Workshops

    Stay ahead of the latest security trends and connect with your peers.

  • Security Defined

    Everything you need to know in our cybersecurity encyclopedia.

Security Visionaries Podcast

Episode 11: Empowering People for a Secure Future

Play the podcast
Black man sitting in conference meeting

Read the latest on how Netskope can enable the Zero Trust and SASE journey through security service edge (SSE) capabilities.

Read the blog
Sunrise and cloudy sky


Netskope is positioned to help you begin your journey and discover where Security, Networking, and Zero Trust fit in the SASE world.

Learn more

What is Security Service Edge?

Explore the security side of SASE, the future of network and protection in the cloud.

Learn more
Four-way roundabout
  • Company

    We help you stay ahead of cloud, data, and network security challenges.

  • Why Netskope

    Cloud transformation and work from anywhere have changed how security needs to work.

  • Leadership

    Our leadership team is fiercely committed to doing everything it takes to make our customers successful.

  • Partners

    We partner with security leaders to help you secure your journey to the cloud.

Netskope enables the future of work.

Find out more
Curvy road through wooded area

Netskope is redefining cloud, data, and network security to help organizations apply Zero Trust principles to protect data.

Learn more
Switchback road atop a cliffside

Thinkers, builders, dreamers, innovators. Together, we deliver cutting-edge cloud security solutions to help our customers protect their data and people.

Meet our team
Group of hikers scaling a snowy mountain

Netskope’s partner-centric go-to-market strategy enables our partners to maximize their growth and profitability while transforming enterprise security.

Learn more
Group of diverse young professionals smiling
Blog Threat Labs Two RCE Vulnerabilities Found in Spring Framework
Apr 06 2022

Two RCE Vulnerabilities Found in Spring Framework


At the end of March 2022, two critical vulnerabilities (CVE-2022-22963 and CVE-2022-22965) were discovered in different components of VMware Spring. Spring is a popular framework focused on facilitating the development of Java applications, including cloud-based apps, eliminating the need for additional code or concerns related to server requirements. 

According to VMware, both vulnerabilities may be exploitable through crafted HTTP requests that can result in remote code execution (RCE), both having the same critical CVSS score of 9.8 out of 10. Given the popularity of Spring, these security issues represent a serious threat to vulnerable web applications. 

These bugs have already been fixed by Spring, but exploits for both vulnerabilities can be found in the wild, which makes these bugs more critical as one could simply leverage the PoC code to exploit vulnerable systems with minimal effort.


According to the report published by VMware on March 29, 2022, this vulnerability affects Spring Cloud Function versions 3.1.6, 3.2.2, and older unsupported versions.

To exploit this vulnerability, an attacker may send an HTTP request with a crafted SpEL (Spring Expression Language) string as a routing-expression, which may result in remote code execution.

Screenshot showing how an attacker could exploit CVE-2022-22963

To mitigate this issue, users running affected versions of Spring Cloud Function should upgrade to 3.1.7 or 3.2.3.


The second vulnerability affects Spring Framework versions 5.3.0 to 5.3.17, 5.2.0 to 5.2.19, and older unsupported versions. This bug is also being publicly called as Spring4Shell.

There are a few prerequisites for the exploit:

  • JDK 9+
  • Apache Tomcat as the Servlet container
  • Packaged as WAR
  • spring-webmvc or spring-webflux dependency

An attacker may exploit this vulnerability by sending a crafted HTTP request that manipulates a property in Tomcat’s pipeline allowing one to drop a web shell, hence providing further access to the machine.

Screenshot showing how an attacker may exploit CVE-2022-22965

A detailed analysis of this exploit was released by Microsoft. To mitigate this issue, users running affected Spring Framework versions should upgrade to 5.2.20+ or 5.3.18+.


Update / Patch

We strongly recommend anyone using the affected products mentioned in this post to update to the latest version. Furthermore, Spring has also released a few workarounds for CVE-2022-22965 such as upgrading Tomcat or downgrading to Java 8, which can be followed when the update is not feasible.

Netskope Private Access

If you are running internal applications that cannot be immediately patched, you can mitigate the risk of exploitation by limiting access to the app. A private access solution, such as Netskope Private Access, can be used to make private apps invisible to external attackers who seek to exploit vulnerable services. Furthermore, a private access solution can restrict access to a private app internally, such that only authorized users are able to access the app, reducing the risk that a compromised user or device could be used to exploit vulnerable services.

author image
About the author
Gustavo Palazolo is an expert in malware analysis, reverse engineering and security research, working many years in projects related to electronic fraud protection. He is currently working on the Netskope Research Team, discovering and analyzing new malware threats.
Gustavo Palazolo is an expert in malware analysis, reverse engineering and security research, working many years in projects related to electronic fraud protection. He is currently working on the Netskope Research Team, discovering and analyzing new malware threats.