Quantify the value of Netskope One SSE – Get the 2024 Forrester Total Economic Impact™ study

close
close
  • Why Netskope chevron

    Changing the way networking and security work together.

  • Our Customers chevron

    Netskope serves more than 3,400 customers worldwide including more than 30 of the Fortune 100

  • Our Partners chevron

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

A Leader in SSE. Now a Leader in Single-Vendor SASE.

Learn why Netskope debuted as a leader in the 2024 Gartner® Magic Quadrant™️ for Single-Vendor Secure Access Service Edge

Get the report
Customer Visionary Spotlights

Read how innovative customers are successfully navigating today’s changing networking & security landscape through the Netskope One platform.

Get the eBook
Customer Visionary Spotlights
Netskope’s partner-centric go-to-market strategy enables our partners to maximize their growth and profitability while transforming enterprise security.

Learn about Netskope Partners
Group of diverse young professionals smiling
Your Network of Tomorrow

Plan your path toward a faster, more secure, and more resilient network designed for the applications and users that you support.

Get the white paper
Your Network of Tomorrow
Netskope Cloud Exchange

The Netskope Cloud Exchange (CE) provides customers with powerful integration tools to leverage investments across their security posture.

Learn about Cloud Exchange
Aerial view of a city
  • Security Service Edge chevron

    Protect against advanced and cloud-enabled threats and safeguard data across all vectors.

  • SD-WAN chevron

    Confidently provide secure, high-performance access to every remote user, device, site, and cloud.

  • Secure Access Service Edge chevron

    Netskope One SASE provides a cloud-native, fully-converged and single-vendor SASE solution.

The platform of the future is Netskope

Security Service Edge (SSE), Cloud Access Security Broker (CASB), Cloud Firewall, Next Generation Secure Web Gateway (SWG), and Private Access for ZTNA built natively into a single solution to help every business on its journey to Secure Access Service Edge (SASE) architecture.

Go to Products Overview
Netskope video
Next Gen SASE Branch is hybrid — connected, secured, and automated

Netskope Next Gen SASE Branch converges Context-Aware SASE Fabric, Zero-Trust Hybrid Security, and SkopeAI-powered Cloud Orchestrator into a unified cloud offering, ushering in a fully modernized branch experience for the borderless enterprise.

Learn about Next Gen SASE Branch
People at the open space office
SASE Architecture For Dummies

Get your complimentary copy of the only guide to SASE design you’ll ever need.

Get the eBook
SASE Architecture For Dummies eBook
Make the move to market-leading cloud security services with minimal latency and high reliability.

Learn about NewEdge
Lighted highway through mountainside switchbacks
Safely enable the use of generative AI applications with application access control, real-time user coaching, and best-in-class data protection.

Learn how we secure generative AI use
Safely Enable ChatGPT and Generative AI
Zero trust solutions for SSE and SASE deployments

Learn about Zero Trust
Boat driving through open sea
Netskope achieves FedRAMP High Authorization

Choose Netskope GovCloud to accelerate your agency’s transformation.

Learn about Netskope GovCloud
Netskope GovCloud
  • Resources chevron

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

  • Blog chevron

    Learn how Netskope enables security and networking transformation through secure access service edge (SASE)

  • Events and Workshops chevron

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

  • Security Defined chevron

    Everything you need to know in our cybersecurity encyclopedia.

Security Visionaries Podcast

The Future of Security: Quantum, AI, and Macro-political Change
Emily Wearmouth and Max Havey speak with Netskope CEO Sanjay Beri and CTO Krishna Narayanaswamy about the future of security.

Play the podcast Browse all podcasts
The Future of Security: Quantum, AI, and Macro-political Change
Latest Blogs

Read how Netskope can enable the Zero Trust and SASE journey through secure access service edge (SASE) capabilities.

Read the blog
Sunrise and cloudy sky
SASE Week 2024 On-Demand

Learn how to navigate the latest advancements in SASE and zero trust and explore how these frameworks are adapting to address cybersecurity and infrastructure challenges

Explore sessions
SASE Week 2024
What is SASE?

Learn about the future convergence of networking and security tools in today’s cloud dominant business model.

Learn about SASE
  • Company chevron

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

  • Careers chevron

    Join Netskope's 3,000+ amazing team members building the industry’s leading cloud-native security platform.

  • Customer Solutions chevron

    We are here for you and with you every step of the way, ensuring your success with Netskope.

  • Training and Accreditations chevron

    Netskope training will help you become a cloud security expert.

Supporting sustainability through data security

Netskope is proud to participate in Vision 2045: an initiative aimed to raise awareness on private industry’s role in sustainability.

Find out more
Supporting Sustainability Through Data Security
Help shape the future of cloud security

At Netskope, founders and leaders work shoulder-to-shoulder with their colleagues, even the most renowned experts check their egos at the door, and the best ideas win.

Join the team
Careers at Netskope
Netskope dedicated service and support professionals will ensure you successful deploy and experience the full value of our platform.

Go to Customer Solutions
Netskope Professional Services
Secure your digital transformation journey and make the most of your cloud, web, and private applications with Netskope training.

Learn about Training and Certifications
Group of young professionals working

MITRE Att&ck View: Securing AWS Temporary Tokens

Jan 31 2020

We have previously blogged about the risk and challenges in Securing AWS Temporary Tokens.

In this blog, we will take a fresh look from the MITRE Att&ck chain viewpoint, in order to highlight new insights and specific cloud techniques used by adversaries, in an effort to help users be more effective in detecting, mitigating, and preventing different but similar attacks.

Recap: Securing AWS Temporary Tokens

Let’s summarize the challenges with temporary tokens and the common mitigation steps, before we contrast this with what we can glean from an Att&ck analysis. 

Here is the original attack scenario:

Image of original attack scenario
Original Attack Scenario

The key steps are:

  1. A permanent Access Key A is compromised
  2. Key A is used immediately to generate an extra credential i.e. Temporary Token B (for backdoor purposes and obfuscation)
  3. Key A is used to escalate privileges via AssumeRole, which returns Temporary Token C
  4. Temporary Token C is then used to access an S3 Bucket
  5. Temporary Token C is used to exfiltrate data from the S3 Bucket

When mitigating this scenario, the defender first deleted/inactivated Access Key A, then also had to remember to “revoke” Temporary Token C. Revocation in this case meant using a specific role policy to deny all API calls by Temporary Token C based on its creation time.

However, this did not remove the adversary’s access, as there was still the existing Temporary Token B, which could also be used to escalate privileges and generate more temporary tokens (D) in order to continue access to the S3 Bucket:

Image of secondary attack scenario
Secondary Attack Scenario

To completely mitigate the situation, the Temporary Token D must be “revoked” in the same manner as Temporary Token C (using the role policy based on creation time). However, this mitigation approach doesn’t work for Temporary Token B, which was created not by AssumeRole, but by GetSessionToken. In this case, the only way to mitigate/remove Temporary Token B is to delete the IAM user that “owns” it (i.e. the same IAM user that had the compromised Key A) or to restrict that IAM user’s permissions.

These mitigation steps and their differences can be summarized here:

Table outlining mitigation scenarios

This table reflects an incident-focus in dealing with temporary tokens. When taking a larger viewpoint, it’d be reasonable to think about a more complete set of preventative, detection, and mitigation measures:

Table showing set of preventative, detection, and mitigation measures

MITRE Att&ck

Let’s now look at the scenario from the Att&ck viewpoint and see what new insights we have. The original attack scenario has been reorganized in more of an attack chain flow along with MITRE references for the tactics/techniques involved:

Diagram showing attack chain flow, along with MITRE references for the tactics/techniques involved

Notice how this primary attack scenario reflects what a defender might be focused on if they were in the middle of an incident. These would be the primary artifacts seen when tracing back from data exfiltration events to the originating credentials. Role Assumption is a good example of a new technique that isn’t yet in the Privilege Escalation tactic in Att&ck, but is common in cloud attacks. Netskope is working to identify additional techniques such as this, so that defensive measures can be specific and clear.

This Att&ck reorganization is easier to understand and also allows a defender to mine the Att&ck knowledge base for ways to detect and mitigate this attack at each step.

Let’s now look at the secondary attack:

Diagram with Att&ck reorganization showing ways to mine Att&ck knowledge base for ways to detect and mitigate this attack at each step.

Here, it is more obvious, that Temporary Token B is part of an attempt at Persistence (backdoor access) and possibly Defense Evasion, and it’s clearer how it provides the same access to the S3 Bucket.

Here’s a summary of the tactics and techniques in the attack:

(1) A permanent Access Key A is compromised

Tactics: Initial Access
Techniques: Valid Accounts
Mitigations: User Training, Network Segmentation, Multi-factor Authentication

IP allow list credential use, multi-factor authentication, and user training can be effective measures to help prevent and mitigate compromised access keys.

(2) Key A is used to generate an extra credential (create Temporary Token B u