The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a KrbFastReq forgery issue.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Kerberos_5 | Mit | 1.7 (including) | 1.7 (including) |
| Krb5 | Ubuntu | karmic | * |
| Krb5 | Ubuntu | upstream | * |