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Subject : Security ArchitectureResearch Topic : MeltdownTopic Reference : https://en.wikipedia.org/wiki/Meltdown_(security_vulnerability)Instructions Do’s :• Provide a working knowledge of your assign

Subject : Security ArchitectureResearch Topic : MeltdownTopic Reference : https://en.wikipedia.org/wiki/Meltdown_(security_vulnerability)Instructions

Do’s :• Provide a working knowledge of your assigned vulnerability• Compare and contrast your assigned vulnerability with others• Deeply research the use of threat modeling and secure architecture• Tie your research back to recommendations for remediation of the vulnerabilityDon’t• Dive deep into the mathematics of the vulnerability• Disassociate your peer-reviewed scholarly research from the vulnerability• Plagiarize and copy/paste from sites• Forget the topics of our course (e.g. STRIDE)Requirement :Find and review peer-reviewed scholarly articles concerning security architecture,secure design, and threat modeling• Find and review other information that associates with your topic area• Apply research from articles on chosen topic area to create research paper

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******* ** foreshadow *************** It is ********* *** *** ********* word ** ******** *** origins *** ********* to the problem to ******** the associated risk and increase *** ********************* *** ArchitectureMeltdown ** * ************* on ******** processors *** ****** results from the ****** of the ****** **** **** ****** high ********** ****** ******* ****** ********** ********* the ********* that *** ******* ** access *** CPU memory and ********* *** memory zones *** ****** ************ **** allow for ******** ******* ** ***** at the **** time *** *** **** *** ********** ******* which **** *** operating ****** ** ********* the processes **** are ******* ** ****** the ******* ****** ********** ******* **** **** ***** ****** ** ********** ****** ***** ******** access to unauthorized memory Unauthorized ****** ****** is abnormal ** *** system *** *** ********** *********** Another ********* ******* ** *** CPU architecture that ** ******** ** *** ******** ************* ** the *********** ******** *** the speculative execution ************ ********** mainly **** ******** execution units **** are ********** by a schedular that ********** *** execution **** *** *** ************ ** ********* *** CPU *** **** **** processes to ******* *** can ** ** ************** or ** ********** **** instructions ***** ** ** ***** leading to ********* executions *** *** will ****** *** ** *** *** of *** history ** ********* projections The CPU ***** aids the intelligent ********* ** *********** ** ********* ********* ****** *********** *** ***** is a ***** on-chip ****** that simultaneously ****** information from *** ******** ****** ** a ********* basis The ***** ** * quick access ***** *** the **** ****** *********** which ********** *** ****** **** ***** **** ********* *** ******** ********* ******** exploit ******** *** above-mentioned ********** **** *** ******** ****** ****** ******** ****** ******** *** *********** ** *** core elements ** *** ****** ********* ****** It **** the system *********** *********** ** ******** ********* controls ** ***** ********* data in ******** processes *** the underlying ********* ****** ** * normal ******* the *** will send instructions to *** memory **** in **** ******* an *********** ******* *** ********* check ******** *** ******* * *** ******* ****** ****** before grating memory access ******** *** ********* ***** cautions the ********* **** against allowing forbidden ****** ** *** virtual ****** *** problem **** *** ******** ******* is **** ******** *********** ** leaked in ******** ** *** ******* ** *** ********* ******* ******** **** ********* at the point ** ******* ******** *** **** ****** to privileged *********** A meltdown ****** will ***** during *** *********** ******* ******** causes ******* the ****** difference ** referencing ******* ** the ************ access of *** ******** address for *** ********* ********* ******* *** ******** vulnerability ****** every ******* ** a ****** ***** **** that of *** ****** running ********* ********* meltdown **** to the ****** of ********* *** ********* **** through *** *** ** the ********* ********* in *** CPUs ****** *** ******** ******* *** fast ** bit ** *** **** *********** since *** ***** ******* ****** are ************* *** ****** will ********* the ****** ** *** ******** vulnerability ** **** ******* on the ************* ** *** ************ **** ** *** *********** ********* ****** ** *** ******* **** ***** ** 2018 **** *** exploitable ******** *************** **** ** ****** ** since ******** vulnerabilities were ********** ****** *** *** *** ******* ***** **** have ******** ** ********* *** ******** *************** Some *** designs *** help ******** *** ************* through *** ********* *** ********* of *** unprivileged instructions **** ****** some ******** ********* ***** **** *** **** *********** **** CPU ****** solutions **** * lasting ******** ** *** meltdown *************** Most ********* ******* *** affected since ****** ******* ** **** of their **** ****** ******** allows ***** pages that are ****** to the ****** *** ******* ** *** **** **** Operating ****** ******* should ***** on ********** the **** ** access to sensitive **** ******* ******* ** ****** ********* ****** ******** **** to ********* ********* ********* ** the **** of ****************** ******** *** not susceptible ** meltdown *************** Fully *********** machines *** *** the ***** ****** ***** ***** ** *** as *********** ** *** **** ****** ***** **** ****** **** ***** pages ***** ******** **** **** minimal impact ** the virtual ******* space *** embedded ******* *** ******** ******* ** *** ******* to ***** *** **** *** *** ***** ***** are *** **** ********** when ****** in embedded devices ** **** as ********** ******* *** *************** *** **** ******** *** devices **** allow *** running ** ***** *** ******** ** is ******** to *** code ** smart *********** *** ********** ** do *** **** *** kitchen ********** *** ***** *** **** ** *** ********** ****** ** ******** device ** exploitable *** ****** ** *** **** ******* on *** ********** hardware ************ *** ******** ************* ** **** ***** ** ****** some ***** ************ Most ** *** ******** ***** providers **** ****** **** ** *** *** ** ***** *** unauthorized ****** ****** ** that ***** ******** *** *** *** *** vulnerabilities ** *** *** ****** **** ** compromise *** cloud ***************** ****** ******** ***** *************** ** **** as **** ******** ** *** *** *************** ********** *** *************** are *** ******** **** *** ************* *** ****** that *** *** ** ********* ***** protections ********** the ******** ************* ** *** microprocessors ***** ********** *** *** **** ******** ** the ******** vulnerability ***** *** ********* *** *********** ** specter vulnerability ** **** sense **** ******** of ARM and AMD *** ***** *********** ** the ******** vulnerabilities It ** **** **** **** ** *** Intel ******* *** *** **** ******** hence *** ************* Probably **** chip ************* ***** claim *** ** ** ******** ** **** ** ***** ********************************* vulnerabilities have similar ******* ********** ** ******* vulnerabilities ******** and ******* *************** are similar since they ****** *** ******** *** *** *** software ******* *** two *************** *** **** ** ****** ***** **** software ***** *** *** * ********* ******** ******* vulnerabilities allow *** the ******* ** ********* ********* in the ******** ****** for * ******* While *** ******* ************* ****** *** *** ******* of a ******* memory *** ******** vulnerability ***** *** *** *** ****** ** * given ****** ** ** **** *** *** vulnerabilities *** ******* ** **** **** *** not ****** flaws *** ***** in * closely ********* ******** **** of *** *************** have **** **** *** ******** ***** *** ****** ********* chipsIn ***** ** ******* ******** *** ******* **** * major ****** since **** allow ******* ** ***** ********* ****** to ********** the system ******** measures *** gain ****** to sensitive *********** ** *** vulnerabilities *** labeled ** transient ********* attacks ***** **** use ****** flaws ** *** hardware to support an intrusion Specter *** ******** ****** ***** ********* to ***** crucial *********** **** ***** ******** specter ****** ******* ** three ***** ** leak the ********** confidential information *** ***** **** ** a specter ****** is the ***** phase ******* the processor is ****** *** attack ***** *** ********* ** make an ********* ********** ** the second ***** *** ******* the ********* will **** ** execution ** *** *********** to *** ****** ******* **** *** ************* reaches *** ****** channel ********* **** ** **** ********* **** ******* are made possible ******* *** access ** *** ****** ****** ** *** CPU ***** ******** ** *** ***** **** will ******* the ********** between *** ****** ****** *** *** ******** level of *** *********** ***** ********** Unlike *** ******* vulnerability **** relies ** timing the ******** ************* exploits level ****** ** retrieve ******** *********** A meltdown ****** will also occur in three steps the first being ******** * memory ******** *** ******** ***** ****** ******** **** **** **** no access **** *** ******** **** will then **** * ***** **** ** *** ***** of the information **** *** fed to *** register After that the attacker **** use *** Flush+Reload ** access *** ****** *********** ***** *** ***** line to reach *** ******** ****** locationSecurity ********** security ******* **** ****** led ** loss ** crucial **** The *** ** ********* ******* **** as the exploiting ****** **** *** be **** ** ********** ********* *** ****** crucial *********** *** design vulnerabilities ****** ******* **** *** operating systems ** **** ** other software’s ***** act ** ******* *** ******* attack ******** ********** there *** ***** *********** ***** which *** be **** to ********** **** *** ******** ***** **** *** ******* *** **** challenges ******** the data ******* ** the networks *** ********** ** the ******** ******* ****** *************** are ********** to ** ******** ***** **** *** ************* exploited ** *** ********* More ***** *** security ******* ***** *** ************* of *** ******** ******* Such ********* ****** to loss of ********* *********** ** attackers *** ***** *** ********** ********** ** *** ******* ***** ****** & ***** ***** ******* ****** *************** *** *** ******* of *** ******** solutions *** to the advanced ********* tools ** **** ******************* environments *** ** a ******* **** of the ****** vulnerabilities **** ***** *** ****** vulnerabilities ** ******* easy to **** access ** ****** ******* ******* *** disruption ** ******** ************** ** **** as **** ***** remains * great challenge that ** ********* **** ***** *** ****** *************** **** ***** *** ****** *************** ** *** ******** ******* *** chances of ********* *** minimal *** expected losses *** high **** security designs are made ** **** a manner that **** *** accommodate the ******** flaws ******* ************* advancements *** **** ** development of ***** ************* threats **** *** prevailing ******** ******** Such ********* *** **** ************* ** new security ******* ** counter *** ******** threats ***** Kazman ***** ***** ***** * ********** functionality ** ****** ******* ** **** ** the ********* ** the *** ******** measures ********* ******** ******* **** ***** *** ***** ******* **** **** been ******* ** *** design *************** *** ******** ***** was an ******** ** **** **** *** ******* ******* a ****** ************* ****** ** ********** that *** **** created to ****** ********* ** computers **** ******* A number of ******* *** to *** security ****** vulnerability have **** ******** ******* ****** have been ********* by ************ ******* the ******* It shows **** organization **** **** ******** designs that *** ********* ** ******* *** ********* ** *************** *** ********* have ***** ********* the ********** ************* ** the ******** ******* **** there *** ****** *************** ** **** scenarios it ** *** **** ** ******* **** ***** are ******** flaws until when ******* ****** *** ******** ******** the design vulnerabilities is * ***** ********* *** **** **** **** for the ****** actors ** ******* *** *********** ** exploiting *** required informationMore ***** dealing with *** ****** ****** during ****** *************** *** ******* segmenting the ******* ********* *** ****** ** **** as full *********** white listing Situations of ********** the ******* occurs **** ************** *** ******* **** *** ****** ***** **** * ******** *** ******* ********** ******* ******** of ************* Segmented ******** ****** that they *** not connected ** the ******** ****** ****** **** **** positioned ** *** ****** *** ** limited **** ****** ** *** ***** ******* ******* *** ****** is ******* ******** ** * ****** ******* segment ******* 2016) The design ************* in * segmented ******* *** **** ******* ** ******** ********* ** a ******* ******* ** ********* ** ***************** * ****** ** ****** detection ******** have **** ********** to ****** *** threat ** *** occur ******* *** **** ** ******* ******** ********* *** to the design *************** it *** **** ***** **** detecting *** ******* problems *** ****** * ********* when *** ****** is ******** ***** ******* ****** *** instance a ****** ***** *** ****** acquiring sensitive *********** **** the ******* ******* **** ***** *** threat ********* ******** *** ****** ***** *** **** *** ** the ********** ******** *** ***** ******** ** ******* *** **** *********** ************ *** ******** has **** ***** ** ******* entry ** ********* codes **** *** ******* ** ** encompasses ****** pre-defined ************ **** run ** the ******** ******* *************** of ****** ****** are ******* ** the ** ************** who establish *** ************* ****** *** ****** ******* of *** *********** that *** affect *** ********************* *** ** ********** ** be part ** the ****** ************* as ** ******* ** * **** range of ******** ******* ** * ******** ****** any ******** *********** **** *** ******** ****** *** ***** to ** affected ** *** **** *** ******** **** ******* ***** services through ******** ** *** smart ******* ***** are ******** ** *** *** ***** processors *** *************** *** ** meltdown **** *** ** ******** of the ********* * the ******** ******* ********* ***** ** **** ** **** ******** corrections ***** ****** that ********* are *** ********* ******** by *** ******** vulnerabilitiesThreat *************** security problems *** ****** ****** ** ******* modelling **** ***** ****** ******** ***** security *************** **** can ****** operations **** *********** ******* ***** *** ***** ** ** ********* ** start **** ******** ******** **** *********** *** external entities it becomes ****** ** determine the events **** drive *** ******** *** to *** ******* **** ***** *************** ** ** essential not ** ****** the ******* ** **** *** lead ** ****** implications **** *********** threats ******* the ****** modelling ******** there *** other ******* **** *** ***** ***** are ********* ***** ** threats ****** social operational ************* ** **** ** ********* ******* *** ****** ******* *** bound by the ******* ****** ****** ******* *** ******* *** ******* are ******* *** vary in *** ******* The security architecture **** has ****** ********** **** *** ****** ********* process *** ******** **** ********* the ****** ******* **** ******* ** *** ****** ********* *** ***** ** *** ******* ** **** ** ******* *** vulnerability ********** ******* ****** ** ** ***** The use of ****** ********* ** ************* and **** ********** has been ********** ** be *** **** ******** of improving *** ******** ************ ** ******************** ********* ** ************** ** various ****** ************* the ******** ************ involves ********** of *** ********** ** *** ******** ******* ** *** ******* assessment the external dependencies ***** may ** ***** ** the ********* ******* *** ******* ** well ** ******** ******** ********* it may ******* defining *** security *********** ****** the ****** ********* process ******* ****** ********* ** becomes easy ** identify the ******* that *** ************** ****** ** risk **** ** ******* identification ** ******* that ******* **** ****** ** well ** conditions for ********** *********** ** the ***** ** a ******* ******** ** assesses *** ******* *** *************** The ******** *********** ******* *** tremendously ********** **** ****** ********* as ** ****** *** ******** ***** and ******* (Yahya Walters & ***** ***** Thus *** **** to ******* the ******* technology ** *** ****** modelling ********************** *** ******************* of the **** *** the ******* *** always been ********** ** most organization ** ******* ****** ********* due ** vulnerability ****** Most ************* **** ******* **** *** ******* organizational ********* *** *** ** *** **** *** **** complying **** *** ******** ******** and ********* *** **** ** great benefit ** **** organizations *** **** ** *********** has **** ****** to *** ********** ** ** easy to ****** *** ***** *********** in the ******* *** **** secure information *** **** been ******** ** **** vulnerabilitiesFirst ************* ********** and *********** *** ****** **** *** ***** *** threats are ********* ** *** ***** ******* formulation ** ********* **** ******* the ******** ***************** monitoring ******* that the company ******** *** ******** ******* ** *** ******* scanning ** *** ******* ** ******** either high low *** medium *************** Complying **** the ********* ******* that *** risks *** ********* ** a ***** ***** ******* ***** **** ************* ********** ** *** ** the ********** ***** ** vulnerability remediation *** other ******** **** *** ** **** ** ********* *** *************** is ******* ****** ***** ********* ** **** ** fix *** ********* made ********* the degree ** vulnerabilities ** *** long *** *** scans **** ****** **** *** ******* to ****** a number ** ******* that *** ******* ** *** ******* Higher ******** ***** ensure **** *** risks ******* are **** to be ********** ************* ** ******** through identification ** *** risks levels ensures **** the degree of risks ** averted *** decision to make **** *********** the ****** ** risk ** ********* as ** helps ** mitigating *** risks in the ******** ******* The decisions ** be **** **** ********** ***** ****** ** ****** to ****** the ******** ** *** threat to *** ******* ******* (Haber ***** Hibbert ***** ********* ** is ********* ** **** ********* decisions **** ********** *********** ********** **** *** different ***** ** ************************** ** ********* ********** *** be done ** vulnerability remediation ** ** *********** **** other approaches ** ******** ** ****** protection ** the systems *** *** of ********** ********** *** ****** **** *** ********** information ********* ** *** systems as well as ******** *** ********* More ***** *** use of ********* ********** in ************* *** have ******** ******** **** *** not related ** *** ******** system ** **** ** ********** the ******** challenges present **** based ********** *** ***** ** ****** *** ********* that *** linked ** *************** *** ********** approaches **** been ***** ** ******* *** **** ******* **** emanate ** *** ******** matters ****** ***** ******* ***** ** a ****** ** **** the ********** ************* ********* ** *** ********** ********* ** *** ************** ************************* ****** vulnerabilities ******** *** best ********** ** *** ******* preventing ******** that **** ******* ************* ***** ******* ********** have proved * ***** ********* ** **** are ******* *** *** **** *** ******* to **** ******** communications ******** malicious *********** *** **** ************* **** *** affected due ** threats ***** ******** ** a ******** ************* that *** disastrous impacts ***** is **** ** ******* the ******** ******* The threat ******** technologies **** ****** essential ** ********** ** *** ***** ** it ******* on * ****** ** ********** ******** **** ***** ** *** ****** ************ It ** ********* *** can aid in ********** ** ******* **** ****** ** ************** ********************** * * & ******* B (2018) ************* ********** ********** ******* Attack ********** 207-212) ****** ******** CAThakur * ******** Patent ** ******* Washington *** ** Patent *** ********* *********** F ******* * J ***** ***** G * ****** Modelling ******* **** security ************ in cloud ********** * *** ***** Res(IJISR)5(2) ************ * **** * ******* * * *** A Iqbal * ***** **** * (2015) Modelling ***** ******** *** **************** networks ***** **** ****** **** exposed ** ************** ** Reliable *********** ****************** ************* * * ***************** Security: Design ************** measurement *** ********** ******** **************** * ****** * & ***** * (2015) Architectural ******** for securityIEEE Security ***** ************ ***********

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