Moderate severityNVD Advisory· Published Dec 22, 2023· Updated Nov 27, 2024
The Oauth2 PKCE implementation is vulnerable
CVE-2023-50714
Description
yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0. In yii2-authclient prior to version 2.2.15, the Oauth2 PKCE implementation is vulnerable in 2 ways. First, the authCodeVerifier should be removed after usage (similar to authState). Second, there is a risk for a downgrade attack if PKCE is being relied on for CSRF protection. Version 2.2.15 contains a patch for the issue. No known workarounds are available.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
yiisoft/yii2-authclientPackagist | < 2.2.15 | 2.2.15 |
Affected products
2- yiisoft/yii2-authclientv5Range: < 2.2.15
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-rw54-6826-c8j5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2023-50714ghsaADVISORY
- github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.phpghsax_refsource_MISCWEB
- github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.phpghsax_refsource_MISCWEB
- github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.phpghsax_refsource_MISCWEB
- github.com/yiisoft/yii2-authclient/commit/721ed974bc44137437b0cdc8454e137fff8db213ghsax_refsource_MISCWEB
- github.com/yiisoft/yii2-authclient/security/advisories/GHSA-rw54-6826-c8j5ghsax_refsource_CONFIRMWEB
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