GHSA-rw54-6826-c8j5
yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | yiisoft/yii2-authclient | < 2.2.15 | 2.2.15 |
Details
As written in the advisory (Markdown source, shown as plain text).
### 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?_
References
External links from the advisory. They lead to third-party sites.
- https://github.com/yiisoft/yii2-authclient/security/advisories/GHSA-rw54-6826-c8j5
- https://nvd.nist.gov/vuln/detail/CVE-2023-50714
- https://github.com/yiisoft/yii2-authclient/commit/721ed974bc44137437b0cdc8454e137fff8db213
- https://github.com/yiisoft/yii2-authclient
- 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