Impact

Harbor fails to validate the user permissions when updating tag immutability policies - API call:

PUT /projects/{project_name_or_id}/immutabletagrules/{immutable_rule_id}

By sending a request to update a tag immutability policy with an id that belongs to a
project that the currently authenticated user doesn’t have access to, the attacker could
modify tag immutability policies configured in other projects.

Patches

This and similar issues are fixed in Harbor v2.5.2 and later. Please upgrade as soon as possible.

Workarounds

There are no workarounds available.

For more information

If you have any questions or comments about this advisory:

• Open an issue in the Harbor GitHub repository

Credits

Thanks to Gal Goldstein and Daniel Abeles from Oxeye Security for reporting this issue.