medium6.8
CVE-2023-50714
yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable
Impact
### 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?_
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | yiisoft/yii2-authclient | < 2.2.15 | 2.2.15 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Yiiframework | Yii2-Authclient | before 2.2.15 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- 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
- https://github.com/advisories/GHSA-rw54-6826-c8j5
- https://nvd.nist.gov/vuln/detail/CVE-2023-50714