JDK-8254596 : Release Note: Support cross-realm MSSFU
  • Type: Sub-task
  • Component: security-libs
  • Sub-Component: org.ietf.jgss:krb5
  • Affected Version: 8u301,11.0.12-oracle,15
  • Priority: P4
  • Status: Closed
  • Resolution: Delivered
  • Submitted: 2020-10-12
  • Updated: 2022-05-31
  • Resolved: 2021-12-02
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JDK 11 JDK 15 JDK 8
11.0.12-oracleResolved 15Resolved 8u301Resolved
Description
The support for the Kerberos MSSFU extensions [1] is now extended to cross-realm environments.

By leveraging the Kerberos cross-realm referrals enhancement introduced in the context of JDK-8215032, the 'S4U2Self' and 'S4U2Proxy' extensions may be used to impersonate user and service principals located on different realms.

[1] - https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-sfu/3bff5864-8135-400e-bdd9-33b552051d94