CVE-2023-50714
22.12.2023, 19:15
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.Enginsight
| Vendor | Product | Version |
|---|---|---|
| yiiframework | yii2-authclient | 𝑥 < 2.2.15 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-347 - Improper Verification of Cryptographic SignatureThe software does not verify, or incorrectly verifies, the cryptographic signature for data.
- CWE-287 - Improper AuthenticationWhen an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.
References