CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 1CVE-2023-50714 – The Oauth2 PKCE implementation is vulnerable
https://notcve.org/view.php?id=CVE-2023-50714
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. • https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.php#L158 https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.php#L121 https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.php#L420 https://github.com/yiisoft/yii2-authclient/commit/721ed974bc44137437b0cdc8454e137fff8db213 https://github.com/yiisoft/yii2-authclient/security/advisories/GHSA-rw54-6826-c8j5 • CWE-287: Improper Authentication CWE-347: Improper Verification of Cryptographic Signature CWE-918: Server-Side Request Forgery (SSRF) •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 1CVE-2023-50708 – yii2-authclient vulnerable to possible timing attack on string comparison in OAuth1, OAuth2 and OpenID Connect implementation
https://notcve.org/view.php?id=CVE-2023-50708
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 Oauth1/2 `state` and OpenID Connect `nonce` is vulnerable for a `timing attack` since it is compared via regular string comparison (instead of `Yii::$app->getSecurity()->compareString()`). Version 2.2.15 contains a patch for the issue. No known workarounds are available. yii2-authclient es una extensión que agrega consumidores OpenID, OAuth, OAuth2 y OpenId Connect para el framework Yii 2.0. En yii2-authclient antes de la versión 2.2.15, el `state` de Oauth1/2 y el `nonce` de OpenID Connect son vulnerables a un `ataque de sincronización` ya que se compara mediante una comparación de cadenas regular (en lugar de `Yii::$app- >getSecurity()->compareString()`). • https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.php#L158 https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.php#L121 https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.php#L420 https://github.com/yiisoft/yii2-authclient/commit/dabddf2154ab7e7703740205a069202554089248 https://github.com/yiisoft/yii2-authclient/security/advisories/GHSA-w8vh-p74j-x9xp • CWE-203: Observable Discrepancy •