#VU47616 Permissions, Privileges, and Access Controls in Azure Functions - CVE-2020-16904
Published: October 13, 2020
Vulnerability identifier: #VU47616
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2020-16904
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Azure Functions
Azure Functions
Software vendor:
Microsoft
Microsoft
Description
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.
Remediation
Install updates from vendor's website.