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STANFORD UNIVERSITY

INFORMATION TECHNOLOGY SERVICES

WebAuth 4.3.0 Announcement

The ITS WebAuth team is pleased to announce Stanford WebAuth 4.3.0. This release sets HttpOnly on all WebAuth cookies by default, adds a new facility for the user information service to reject an authentication, and continues the major refactoring of the libwebauth and Perl WebAuth APIs.

For documentation and downloads of WebAuth 4.3.0, see:

<http://webauth.stanford.edu/>

New Debian packages built against Apache 2.4 have been uploaded to Debian experimental.

The user-visible changes in this release are:

  • mod_webauth now sets the HttpOnly flag on all WebAuth session cookies by default. This can be turned off at the server or virtual host level with the new WebAuthHttpOnly Apache directive. (Although be aware that the structure of the WebAuth cookies is an internal implementation detail; if this directive is needed, the web site is probably doing something unsupported.)

  • WebLogin now sets the HttpOnly flag on the single sign-on cookie, and on the test cookie used to probe whether cookies are supported.

  • Add a new optional <userMessage> element to the specification of the <requestTokenResponse> reply from the WebKDC and a new error code. These are used to indicate a rejected authentication and to return an HTML error that should be displayed to the user.

  • Support a new <error> return element inside the <authdata> reply from the user information service during WebLogin authentication. Presence of this element indicates that the user information service has rejected this authentication. The content is raw HTML content (which should be protected by a CDATA block in the XML) to display to the user. Make appropriate changes to the webauth_user_info and webauth_webkdc_login APIs and to mod_webkdc to return this information via the new <userMessage> element and the new protocol error code.

  • Add a new parameter, err_html, to the error page template in WebLogin. When this parameter is set, the contents should be used as the entire error message to display to the user. Local WebLogin error templates should be updated to support this parameter.

  • Fix wa_keyring compilation error when older versions of the WebAuth headers are installed in the APR header path.

  • Change all Kerberos functions in the WebAuth library API to take the WebAuth context and use APR memory management and new-style error message handling. There is a new include file, webauth/krb5.h, for the Kerberos functions. Remove webauth_krb5_error_code and webauth_krb5_error_message in favor of the new-style error handling. Call the proper Kerberos error reporting functions to get more information than was available via com_err.

  • Replace webauth_krb5_export_ticket and webauth_krb5_export_tgt with a new webauth_krb5_export_cred function that is parallel to webauth_krb5_import_cred and can do either operation. Similarly, merge webauth_krb5_init_via_cred and webauth_krb5_import_cred into webauth_krb5_import_cred.

  • Rename webauth_krb5_rd_req to webauth_krb5_read_auth and webauth_krb5_mk_req to webauth_krb5_make_auth. Rename the _with_data variations of both to _data.

  • Remove webauth_krb5_keep_cred_cache. This was no longer used anywhere in the WebAuth source.

  • Revise the Perl API for Kerberos-related functions to match the changes to libwebauth, including changes of method names and removal of now-unused functions, and complete the conversion to an object-oriented interface. A WebAuth::Krb5 object is now returned by the krb5_new method, and all other Kerberos functions are now implemented as methods on that object.

  • Fix decoding of Kerberos credentials that include a second ticket when built with MIT Kerberos.

  • Kerberos realm names are no longer escaped before matching them against the Apache configuration. This only affects handling realm names with unusual characters.

Last modified Friday, 12-Dec-2014 02:31:12 PM

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