CVE-2020-15234
Fosite OAuth2 Redirect URL Case Sensitivity Weakness
Description
ORY Fosite is a security first OAuth2 & OpenID Connect framework for Go. In Fosite before version 0.34.1, the OAuth 2.0 Client's registered redirect URLs and the redirect URL provided at the OAuth2 Authorization Endpoint where compared using strings.ToLower while they should have been compared with a simple string match. This allows an attacker to register a client with allowed redirect URL https://example.com/callback. Then perform an OAuth2 flow and requesting redirect URL https://example.com/CALLBACK. Instead of an error (invalid redirect URL), the browser is redirected to https://example.com/CALLBACK with a potentially successful OAuth2 response, depending on the state of the overall OAuth2 flow (the user might still deny the request for example). This vulnerability has been patched in ORY Fosite v0.34.1.
INFO
Published Date :
Oct. 2, 2020, 9:15 p.m.
Last Modified :
Nov. 18, 2021, 4:52 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
0.9
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-2020-15234
.
URL | Resource |
---|---|
https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bf | Patch Third Party Advisory |
https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6 | Third Party 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-2020-15234
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15234
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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Nov. 18, 2021
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Added CWE NIST CWE-178 -
Initial Analysis by [email protected]
Oct. 23, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bf No Types Assigned https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bf Patch, Third Party Advisory Changed Reference Type https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6 No Types Assigned https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:ory:fosite:*:*:*:*:*:*:*:* versions up to (excluding) 0.34.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15234
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-2020-15234
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.17086
percentile