Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1qY3ItcnFqZy1yaGcz

Implementation trusts the "me" field returned by the authorization server without verifying it

Impact

A malicious user can sign in as a user with any IndieAuth identifier. This is because the implementation does not verify that the final "me" URL value returned by the authorization server belongs to the same domain as the initial value entered by the user.

Patches

Version 1.1 fixes this issue.

Workarounds

There is no workaround. Upgrade to 1.1 immediately.

References

• Security Considerations: Differing User Profile URLs in the IndieAuth specification.

For more information

If you have any questions or comments about this advisory:

• Open an issue in simonw/datasette-indieauth

Permalink: https://github.com/advisories/GHSA-mjcr-rqjg-rhg3
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW1qY3ItcnFqZy1yaGcz
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 3 years ago
Updated: 8 months ago

Identifiers: GHSA-mjcr-rqjg-rhg3
References:

• https://github.com/simonw/datasette-indieauth/security/advisories/GHSA-mjcr-rqjg-rhg3
• https://pypi.org/project/datasette-indieauth/
• https://github.com/simonw/datasette-indieauth/commit/376c8804c6b0811852049229a24336fe5eb6a439
• https://github.com/advisories/GHSA-mjcr-rqjg-rhg3

Repository: https://github.com/simonw/datasette-indieauth
Blast Radius: 0.0

Affected Packages