Permissions, Privileges, and Access Controls in Azure Functions - CVE-2020-16904
Published: October 13, 2020
Vulnerability identifier: #VU47616
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-16904
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the way Azure Functions validate access keys. A remote attacker can invoke an HTTP Function without proper authorization.
Affected software
Azure Functions
How to mitigate CVE-2020-16904
Install updates from vendor's website.