En resumen
- CVE-2023-50714 es una vulnerabilidad ALTO (CVSS 8.8) que afecta a yiisoft/yii2-authclient, yii2-authclient (yiiframework).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.49%, mayor que el 42.3% de las vulnerabilidades.
- Solución: actualizar a 2.2.15 o posterior.
Description
Impact
What kind of vulnerability is it? Who is impacted?
Original Report:
The Oauth2 PKCE implementation is vulnerable in 2 ways:
- The
authCodeVerifier should be removed after usage (similar to 'authState')
- 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?
NVD 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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