By Rick A Jones Affiliation: Systems and Information Engineering, University of Virginia, Charlottesville, VA 22904; Barry Horowitz Affiliation: Systems and Information Engineering, University of Virginia, Charlottesville, VA 22904
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Extra resources for A System-Aware Cyber Security architecture
If the software product has already been placed in production and a functionality patch is released, the patch would go through the organization’s release management process to establish that affected systems are updated appropriately. Release management is discussed in a subsequent chapter. Feature Patches Sometimes, a vendor will release a feature patch to introduce a new feature or function into an existing operating system or application. These types of patches can be developed for new software products or products that have been updated, usually to support a new option.
This can put additional pressure on the group © 2011 by Taylor & Francis Group, LLC 18 Securit y Pat c h M a n ag em en t responsible for deploying the patch, but it also holds them accountable for ensuring that the process is being followed accurately. If an issue has come about that prevents the organization from meeting these time frames, the patch management process should be reevaluated to determine what the achievable time frames should be. If it is not the process but instead the groups or departments within the organization that are causing systems to remain unpatched, then the importance of complying with this process must be communicated down to these groups by executive management.
These individuals may also release the vulnerability to the rest of the hacker community before it is publicly announced by CERT (or BugTraq). This poses an even greater risk for a zero-day exploit. These occurrences used to be a rare, but with all the discussions surrounding patch management over the past few years zero-day exploits are becoming more common. A zero-day exploit occurs when an exploit for a vulnerability is released the same day a patch is provided to protect the organization’s vulnerable systems.
A System-Aware Cyber Security architecture by Rick A Jones Affiliation: Systems and Information Engineering, University of Virginia, Charlottesville, VA 22904; Barry Horowitz Affiliation: Systems and Information Engineering, University of Virginia, Charlottesville, VA 22904