CVE-2020-16904

Azure Functions Elevation of Privilege Vulnerability

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>

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.32% Top 25%
Vendor Advisory microsoft.com
Affected: Microsoft Azure Functions
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-16904?
CVE-2020-16904 has been scored as a medium severity vulnerability.
How to fix CVE-2020-16904?
To fix CVE-2020-16904, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-16904 being actively exploited in the wild?
It is possible that CVE-2020-16904 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-16904?
CVE-2020-16904 affects Microsoft Azure Functions.
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