RFC 2203 (rfc2203) - Page 2 of 23
RPCSEC_GSS Protocol Specification
Alternative Format: Original Text Document
RFC 2203 RPCSEC_GSS Protocol Specification September 1997 5.3.3.4. Mapping of GSS-API Errors to Server Responses . . . . 16 5.3.3.4.1. GSS_GetMIC() Failure . . . . . . . . . . . . . . . . 16 5.3.3.4.2. GSS_VerifyMIC() Failure . . . . . . . . . . . . . . 16 5.3.3.4.3. GSS_Unwrap() Failure . . . . . . . . . . . . . . . . 16 5.3.3.4.4. GSS_Wrap() Failure . . . . . . . . . . . . . . . . . 16 5.4. Context Destruction . . . . . . . . . . . . . . . . . . . 17 6. Set of GSS-API Mechanisms . . . . . . . . . . . . . . . . . 17 7. Security Considerations . . . . . . . . . . . . . . . . . . 18 7.1. Privacy of Call Header . . . . . . . . . . . . . . . . . . 18 7.2. Sequence Number Attacks . . . . . . . . . . . . . . . . . 18 7.2.1. Sequence Numbers Above the Window . . . . . . . . . . . 18 7.2.2. Sequence Numbers Within or Below the Window . . . . . . 18 7.3. Message Stealing Attacks . . . . . . . . . . . . . . . . . 19 Appendix A. GSS-API Major Status Codes . . . . . . . . . . . . . 20 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 22 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 23 1. Introduction This document describes the protocol used by the RPCSEC_GSS security flavor. Security flavors have been called authentication flavors for historical reasons. This memo recognizes that there are two other security services besides authentication, integrity, and privacy, and so defines a new RPCSEC_GSS security flavor. The protocol is described using the XDR language [Srinivasan-xdr]. The reader is assumed to be familiar with ONC RPC and the security flavor mechanism [Srinivasan-rpc]. The reader is also assumed to be familiar with the GSS-API framework [Linn]. The RPCSEC_GSS security flavor uses GSS-API interfaces to provide security services that are independent of the underlying security mechanism. 2. The ONC RPC Message Protocol This memo refers to the following XDR types of the ONC RPC protocol, which are described in the document entitled Remote Procedure Call Protocol Specification Version 2 [Srinivasan-rpc]: msg_type reply_stat auth_flavor accept_stat reject_stat auth_stat opaque_auth rpc_msg call_body reply_body Eisler, et. al. Standards Track
