Streamlining Risk Prioritization and Vulnerability Management with Prisma Cloud

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By Raqeeb Iliyas, Cloud Security Engineer

Introduction

 

Effective risk prioritization and vulnerability management are essential for securing modern cloud-native environments. Prisma Cloud offers robust features that help organizations assess, prioritize, and mitigate vulnerabilities using contextual insights. This article outlines key strategies and workflows for leveraging Prisma Cloud's risk factors, focusing on optimizing vulnerability remediation efforts.Risk prioritization in vulnerability management is achieved by combining environmental context and Common Vulnerabilities and Exposures (CVE) risk factors, enabling organizations to focus on the most critical threats.

 

Prisma Cloud provides two categories of risk factors—CVE risk factors and Environmental risk factors—to identify and address vulnerabilities. These factors enable SecOps teams to assess vulnerabilities' potential impact and prioritize remediation based on the actual risk to their environment.

 

Examples 

 

  1. CVE Risk Factors:

    • Severity levels: Critical, High, and Medium.

    • Availability of fixes from maintainers.

    • Exploitation characteristics (e.g., remote execution, attack complexity).

    • Threat insights such as "Exploit in the wild" and "Recent vulnerability."

  2. For instance, vulnerabilities classified as "remote execution" and "recent vulnerabilities" with an exploit available in the wild are flagged as high-priority due to their immediate risk.

  3. Environmental Risk Factors:

    • Containers exposed to the internet.

    • Privileged container settings (e.g., root access, lack of security profiles).

    • Active usage of vulnerable packages in runtime.

  4. The "Package in use" factor is a significant indicator, highlighting vulnerabilities in components actively used by critical workloads like containers and hosts.

 

Detailed Workflow

 

Step 1: Identify Critical Workloads

  • Use the Inventory tab, Compute Radar, and Application Inventory to pinpoint "crown jewels" such as application critical workloads or clusters.

 

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Figure 1:  Inventory Tab_PaloAltoNetworks

 

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Figure 2:  Cloud Radar Tab_PaloAltoNetworks

 

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Figure 3:  Application Inventory_PaloAltoNetworks

 

Step 2: Prioritize Top Vulnerabilities

  • Use the Investigate tab to generate a ranked list of CVEs based on severity and risk factors, identifying high-impact vulnerabilities across your environment.

 

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Figure 4:  Vulnerability Explorer Tab_PaloAltoNetworks

 

Step 3: Focus on Critical Assets

  • Filter vulnerabilities by risk factor (e.g., "Package in use") and asset type (e.g., deployed containers or specific namespaces).

  • Example: A deployed container running a vulnerable tomcat-util package in a high-exposure namespace.

 

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Figure 5:  Investigate Tab_PaloAltoNetworks

 

Step 4: Remediate at the Source

  • Leverage the Code to Cloud (C2C) Graph to trace vulnerabilities to their origin, such as build systems or registry images.

  • Address issues early in the development lifecycle to prevent widespread exposure and minimize remediation overhead.

For example, vulnerabilities traced to a registry image used by multiple containers can be addressed once, significantly reducing remediation scope.

 

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Figure 6:  Code to Cloud Graph_PaloAltoNetworks

 

Click on the assets from the C2C graph and investigate the details of the packages used by the workload. In the following screenshot, you can see the total number of packages installed on a host machine 

 

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Figure 7:  Workloads Package Info_PaloAltoNetworks

 

 

Conclusion

 

Prisma Cloud simplifies risk prioritization by combining vulnerability data with environmental context, enabling DevSecOps teams to focus on critical risks. Through detailed workflows—from identifying critical workloads to tracing vulnerabilities to their source—organizations can achieve effective remediation and strengthen their security posture. These strategies support establishing Key Risk Indicators (KRIs) and Service Level Agreements (SLAs) for timely remediation.

 

 

References

 

  1. Prisma Cloud Documentation on Risk Factors and Vulnerability Management
    Code to Cloud Tracing for Vulnerabilities

  2. Prisma Cloud Investigate Tab Features and Risk Factor Details
    Explore Investigate Tab

About the Author 

 

Raqeeb Iliyas is a Prisma Cloud SME specializing in DevSecOps methodologies. He brings a wealth of knowledge in cloud security solutions to help global enterprise customers address their Cloud security Risks.

 

 

 

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Last Updated:
‎12-16-2024 03:55 PM
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