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GHSA-6rrr-78xp-5jp8
No affected components available
Impact
RefreshTokens is an OAuth 2.0 feature that allows applications to retrieve new access tokens and refresh the user's session without the need for interacting with a UI.
RefreshTokens were not invalidated when a user was locked or deactivated. The deactivated or locked user was able to obtain a valid access token only through a refresh token grant.
When the locked or deactivated user’s session was already terminated (“logged out”) then it was not possible to create a new session. Renewal of access token through a refresh token grant is limited to the configured amount of time (RefreshTokenExpiration).
Patches
2.x versions are fixed on >= 2.17.3 2.16.x versions are fixed on >= 2.16.4
ZITADEL recommends upgrading to the latest versions available in due course.
Workarounds
Ensure the RefreshTokenExpiration in the OIDC settings of your instance is set according to your security requirements.
References
https://zitadel.com/docs/guides/manage/console/instance-settings#oidc-token-lifetimes-and-expiration
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a high impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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