CVE-2024-52307
authentik allows a timing attack due to missing constant time comparison for metrics view
Description
authentik is an open-source identity provider. Due to the usage of a non-constant time comparison for the /-/metrics/ endpoint it was possible to brute-force the SECRET_KEY, which is used to authenticate the endpoint. The /-/metrics/ endpoint returns Prometheus metrics and is not intended to be accessed directly, as the Go proxy running in the authentik server container fetches data from this endpoint and serves it on a separate port (9300 by default), which can be scraped by Prometheus without being exposed publicly. authentik 2024.8.5 and 2024.10.3 fix this issue. Since the /-/metrics/ endpoint is not intended to be accessed publicly, requests to the endpoint can be blocked by the reverse proxy/load balancer used in conjunction with authentik.
INFO
Published Date :
Nov. 21, 2024, 6:15 p.m.
Last Modified :
Aug. 21, 2025, 7:19 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
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-2024-52307.
| URL | Resource |
|---|---|
| https://github.com/goauthentik/authentik/commit/5ea4580884f99369f0ccfe484c04cb03a66e65b8 | Patch |
| https://github.com/goauthentik/authentik/security/advisories/GHSA-2xrw-5f2x-m56j | Vendor Advisory Mitigation |
| http://www.openwall.com/lists/oss-security/2024/11/27/1 | Mailing List |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-52307 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-2024-52307
weaknesses.
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-2024-52307 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-52307 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.
-
Initial Analysis by [email protected]
Aug. 21, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L Added CPE Configuration OR *cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:* versions up to (excluding) 2024.8.5 *cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:* versions from (including) 2024.10.0 up to (excluding) 2024.10.3 Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2024/11/27/1 Types: Mailing List Added Reference Type GitHub, Inc.: https://github.com/goauthentik/authentik/commit/5ea4580884f99369f0ccfe484c04cb03a66e65b8 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/goauthentik/authentik/security/advisories/GHSA-2xrw-5f2x-m56j Types: Mitigation, Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 27, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2024/11/27/1 -
New CVE Received by [email protected]
Nov. 21, 2024
Action Type Old Value New Value Added Description authentik is an open-source identity provider. Due to the usage of a non-constant time comparison for the /-/metrics/ endpoint it was possible to brute-force the SECRET_KEY, which is used to authenticate the endpoint. The /-/metrics/ endpoint returns Prometheus metrics and is not intended to be accessed directly, as the Go proxy running in the authentik server container fetches data from this endpoint and serves it on a separate port (9300 by default), which can be scraped by Prometheus without being exposed publicly. authentik 2024.8.5 and 2024.10.3 fix this issue. Since the /-/metrics/ endpoint is not intended to be accessed publicly, requests to the endpoint can be blocked by the reverse proxy/load balancer used in conjunction with authentik. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-208 Added Reference https://github.com/goauthentik/authentik/commit/5ea4580884f99369f0ccfe484c04cb03a66e65b8 Added Reference https://github.com/goauthentik/authentik/security/advisories/GHSA-2xrw-5f2x-m56j