CVE-2020-16904
MEDIUMAzure Functions - Unauthenticated Incorrect Authorization
Title source: llmDescription
<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>
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904
Scores
CVSS v3
5.3
EPSS
0.0312
EPSS Percentile
86.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-863
Status
published
Products (1)
microsoft/azure_functions
Published
Oct 16, 2020
Tracked Since
Feb 18, 2026