CVE-2023-50714 – yiisoft/yii2-authclient

Package

Manager: composer
Name: yiisoft/yii2-authclient
Vulnerable Version: >=0 <2.2.15

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00114 pctl0.30802

Details

yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable ### Impact _What kind of vulnerability is it? Who is impacted?_ Original Report: > The Oauth2 PKCE implementation is vulnerable in 2 ways: > 1. The `authCodeVerifier` should be removed after usage (similar to 'authState') > 2. There is a risk for a "downgrade attack" if PKCE is being relied on for CSRF protection. ### Patches _Has the problem been patched? What versions should users upgrade to?_ 2.2.15 ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ not known yet. ### References _Are there any links users can visit to find out more?_

Metadata

Created: 2023-12-18T19:34:20Z
Modified: 2023-12-22T22:24:09Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-rw54-6826-c8j5/GHSA-rw54-6826-c8j5.json
CWE IDs: ["CWE-287", "CWE-347"]
Alternative ID: GHSA-rw54-6826-c8j5
Finding: F039
Auto approve: 1