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GHSA-g98g-r7gf-2r25critical9.1

Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK

Impact

Overview Session cookies of applications using the Auth0-PHP SDK configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

auth0/auth0-php Packagist
Affected rangeRecorded fix
From 8.0.0-BETA1 before 8.14.0Ecosystem versions8.14.0

Version evidence: OSV · GHSA-g98g-r7gf-2r25

View original version evidence (36 explicit versions)

Original source description

Overview Session cookies of applications using the Auth0-PHP SDK configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access.

Am I Affected? You are affected by this vulnerability if you meet the following pre-conditions:

  1. Applications using the Auth0-PHP SDK, or the following SDKs that rely on the Auth0-PHP SDK: a. Auth0/symfony, b. Auth0/laravel-auth0, c. Auth0/wordpress,
  2. Session storage configured with CookieStore.

Fix Upgrade Auth0/Auth0-PHP to v8.14.0. As an additional precautionary measure, we recommend rotating your cookie encryption keys. Note that once updated, any previous session cookies will be rejected.

Acknowledgement Okta would like to thank Félix Charette for discovering this vulnerability.

References