CVE-2020-16904
Azure Functions Elevation of Privilege
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>
INFO
Published Date :
Oct. 16, 2020, 11:15 p.m.
Last Modified :
Nov. 21, 2024, 5:07 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-16904.
| URL | Resource |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904 | Patch Vendor Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904 | Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-16904 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-16904 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 31, 2023
Action Type Old Value New Value Changed Description An elevation of privilege vulnerability exists in the way Azure Functions validate access keys.An unauthenticated attacker who successfully exploited this vulnerability could invoke an HTTP Function without proper authorization.This security update addresses the vulnerability by correctly validating access keys used to access HTTP Functions., aka 'Azure Functions Elevation of Privilege Vulnerability'. <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> Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-269 CWE-863 -
Initial Analysis by [email protected]
Oct. 26, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16904 Patch, Vendor Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:a:microsoft:azure_functions:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-16904 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-16904
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.06 }} 0.87%
score
0.83851
percentile