By Helmut Petritsch
Helmut Petritsch describes the 1st holistic method of Break-Glass which covers the total life-cycle: from entry keep an eye on modeling (pre-access), to logging the security-relevant procedure kingdom in the course of Break-Glass accesses (at-access), and the automatic research of Break-Glass accesses (post-access). Break-Glass permits clients to override defense regulations in remarkable events. whereas a number of Break-Glass types particular to given entry keep watch over versions have already been mentioned in study (e.g., extending RBAC with Break-Glass), the writer introduces a widely used Break-Glass version. The offered version is widely used either within the feel that it permits to version latest Break-Glass techniques and that it really is autonomous of the underlying entry keep watch over model.
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Additional info for Break-Glass: Handling Exceptional Situations in Access Control
Pre-obligations [39, 95] can and have to be enforced before the access. Post-obligations on the other hand can only be fulﬁlled after the access. Here, the system needs to monitor the fulﬁllment or satisfaction of obligations and take consequences or compensatory actions if this is not the case . 0. An advice only deﬁnes what could be done, i. , advices do not have to be enforced. This allows to model “hints” for client applications, i. , the enforcing component may (but is not bound to) enforce the advice.
Exceptional situations are per deﬁnition exceptions and hence occur seldom, i. , users are likely to be nervous in such exceptional or even emergency situations. At best, users should not need education or regular training on using the Break-Glass mechanism. Hence, the interface and the usage of the mechanism should be easy to understand and use. This includes that users should be able to execute exceptional tasks in their usual and custom environment, both to ensure that users are able to handle the exceptional situations and that the workﬂow is not disrupted.
Thus, to ensure integrity, data can only be manipulated by speciﬁc tasks, which have to stick to speciﬁc rules. Subjects user are not permitted to manipulate a data item directly, but only authorized to execute tasks. Thus, instead of deﬁning controls on data directly, “the user is constrained by what programs he can execute, and the manner in which he can read or write data items is implicit in the actions of those programs” . Based on this, four terms are introduced: • Constrained Data Items (cdi) are resources under integrity control.