CVE-2023-40171

Dispatch is an open source security incident management tool. The server response includes the JWT Secret Key used for signing JWT tokens in error message when the Dispatch Plugin - Basic Authentication Provider plugin encounters an error when attempting to decode a JWT token. Any Dispatch users who own their instance and rely on the Dispatch Plugin - Basic Authentication Provider plugin for authentication may be impacted, allowing for any account to be taken over within their own instance. This could be done by using the secret to sign attacker crafted JWTs. If you think that you may be impacted, we strongly suggest you to rotate the secret stored in the DISPATCH_JWT_SECRET envvar in the .env file. This issue has been addressed in commit b1942a4319 which has been included in the 20230817 release. users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness

The product generates an error message that includes sensitive information about its environment, users, or associated data.

Affected Software

Potential Mitigations

• Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
• If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
• Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/215.html
• https://cwe.mitre.org/data/definitions/463.html
• https://cwe.mitre.org/data/definitions/54.html
• https://cwe.mitre.org/data/definitions/7.html

References

• https://github.com/Netflix/dispatch/commit/b1942a4319f0de820d86b84a58ebc85398b97c70
• https://github.com/Netflix/dispatch/pull/3695
• https://github.com/Netflix/dispatch/releases/tag/latest
• https://github.com/Netflix/dispatch/security/advisories/GHSA-fv3x-67q3-6pg7
• https://github.com/Netflix/dispatch/commit/b1942a4319f0de820d86b84a58ebc85398b97c70
• https://github.com/Netflix/dispatch/pull/3695
• https://github.com/Netflix/dispatch/releases/tag/latest
• https://github.com/Netflix/dispatch/security/advisories/GHSA-fv3x-67q3-6pg7