Sharepoint 2007 SP3 with December CU. One site, two lists. Permissions are not inherited and looks like these:
List1: group1 - contribute group2 - read portal owners - full control List2: group3 - contribute group4 - read portal owners - full control
The problem's that List1 can access only users from group1, group2 and portal owners, but to List2 all users have read access!
If I create a new list on the same site or on a new site then everyone will have read access to it no matter what's in permission list. But if I set a custom permissions on an item in a list then it works as it should be.
Anonymous login is disabled in Cental administration for this application. Windows log is clear.
What else could it be?