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CVE-2020-16904

5.3 · MEDIUM

<p>An elevation of privilege vulnerability exists in the way Azure Functions validate access keys.</p> <p>An unauthenticated attacker who successfully exploited this vulnerability could invoke an H…

Published Oct 16, 2020CWE-863EPSS 3.37%

Overview

CVE-2020-16904 is a medium-severity vulnerability. It was published on October 16, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

<p>An elevation of privilege vulnerability exists in the way Azure Functions validate access keys.</p>

<p>An unauthenticated attacker who successfully exploited this vulnerability could invoke an HTTP Function without proper authorization.</p>

<p>This security update addresses the vulnerability by correctly validating access keys used to access HTTP Functions.</p>

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904

How CyberStrike helps

Frequently asked questions

What is CVE-2020-16904?

CVE-2020-16904 is a medium-severity vulnerability. It was published on October 16, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2020-16904?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-16904?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-16904?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-16904 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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