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Vulnerability Analysis of Data Protection in Selected Company
Strachová, Zuzana ; Vlastimil,, Svoboda (referee) ; Sedlák, Petr (advisor)
The bachelor thesis deals with security assessment in the area of data protection of a part of the information system in a selected company. In my thesis, I examine the security status and security controls in place and try to detect actual or potential vulnerabilities. Based on an analysis performed by means of interviews, using assisted assessment methodology and automated vulnerability-finding method, I suggest security enhancements. The theoretical part of the thesis provides an introduction to the topic of data protection and defines the basic related terms.
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Design of methodology for vulnerability assesment
Pecl, David ; Martinásek, Zdeněk (referee) ; Gerlich, Tomáš (advisor)
The thesis deals with the assessment of security vulnerabilities. The aim of this work is to create a new method of vulnerability assessment, which will better prioritize critical vulnerabilities and reflect parameters that are not used in currently used methods. Firstly, it describes the common methods used to assess vulnerabilities and the parameters used in each method. The first described method is the Common Vulnerability Scoring System for which are described all three types of scores. The second analysed method is OWASP Risk Rating Methodology. The second part is devoted to the design of the own method, which aims to assess vulnerabilities that it is easier to identify those with high priority. The method is based on three groups of parameters. The first group describes the technical assessment of the vulnerability, the second is based on the requirements to ensure the confidentiality, integrity and availability of the asset and the third group of parameters evaluates the implemented security measures. All three groups of parameters are important for prioritization. Parameters describing the vulnerability are divided into permanent and up-to-date, where the most important up-to-date parameter are Threat Intelligence and easy of exploitation. The parameters of the impact on confidentiality, integrity and availability are linked to the priority of the asset, and to the evaluation of security measures, which increase the protection of confidentiality, integrity and availability. The priority of the asset and the quality of the countermeasures are assessed based on questionnaires, which are submitted to the owners of the examined assets as part of the vulnerability assessment. In the third part of the thesis, the method is compared with the currently widely used the Common Vulnerability Scoring System. The strengths of the proposed method are shown in several examples. The effectiveness of prioritization is based primarily on the priority of the asset and the security measures in place. The method was practically tested in a laboratory environment, where vulnerabilities were made on several different assets. These vulnerabilities were assessed using the proposed method, the priority of the asset and the quality of the measures were considered, and everything was included in the priority of vulnerability. This testing confirmed that the method more effectively prioritizes vulnerabilities that are easily exploitable, recently exploited by an attacker, and found on assets with minimal protection and higher priority.
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Systém sledování a hodnocení zranitelnosti vůči dopadům změny klimatu v podmínkách ČR
Kochová, Tereza ; Havránek, Miroslav
Česká republika se podobně jako ostatní země světa potýká s jednotlivými projevy změny klimatu. Změna klimatu je komplexní fenomén, jehož projevy ovlivňují téměř všechny hospodářské oblasti, lidskou společnost i ekosystémy. Reálný efekt daného projevu změny klimatu přitom záleží nejen na místně specifické intenzitě samotného projevu, ale také na tom, zda jsou v zasaženém systému přítomny prvky, které jsou tímto projevem negativně ovlivněny. Reálné efekty daného projevu a jejich závažnost jsou určeny také schopností dotčeného systému dopad projevu předvídat (být na něj připraven), reagovat na něj a přizpůsobit se nastalé změně, případně schopností tlumit negativní dopady a způsobené škody nahradit.
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Design of methodology for vulnerability assesment
Pecl, David ; Martinásek, Zdeněk (referee) ; Gerlich, Tomáš (advisor)
The thesis deals with the assessment of security vulnerabilities. The aim of this work is to create a new method of vulnerability assessment, which will better prioritize critical vulnerabilities and reflect parameters that are not used in currently used methods. Firstly, it describes the common methods used to assess vulnerabilities and the parameters used in each method. The first described method is the Common Vulnerability Scoring System for which are described all three types of scores. The second analysed method is OWASP Risk Rating Methodology. The second part is devoted to the design of the own method, which aims to assess vulnerabilities that it is easier to identify those with high priority. The method is based on three groups of parameters. The first group describes the technical assessment of the vulnerability, the second is based on the requirements to ensure the confidentiality, integrity and availability of the asset and the third group of parameters evaluates the implemented security measures. All three groups of parameters are important for prioritization. Parameters describing the vulnerability are divided into permanent and up-to-date, where the most important up-to-date parameter are Threat Intelligence and easy of exploitation. The parameters of the impact on confidentiality, integrity and availability are linked to the priority of the asset, and to the evaluation of security measures, which increase the protection of confidentiality, integrity and availability. The priority of the asset and the quality of the countermeasures are assessed based on questionnaires, which are submitted to the owners of the examined assets as part of the vulnerability assessment. In the third part of the thesis, the method is compared with the currently widely used the Common Vulnerability Scoring System. The strengths of the proposed method are shown in several examples. The effectiveness of prioritization is based primarily on the priority of the asset and the security measures in place. The method was practically tested in a laboratory environment, where vulnerabilities were made on several different assets. These vulnerabilities were assessed using the proposed method, the priority of the asset and the quality of the measures were considered, and everything was included in the priority of vulnerability. This testing confirmed that the method more effectively prioritizes vulnerabilities that are easily exploitable, recently exploited by an attacker, and found on assets with minimal protection and higher priority.
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Vulnerability Analysis of Data Protection in Selected Company
Strachová, Zuzana ; Vlastimil,, Svoboda (referee) ; Sedlák, Petr (advisor)
The bachelor thesis deals with security assessment in the area of data protection of a part of the information system in a selected company. In my thesis, I examine the security status and security controls in place and try to detect actual or potential vulnerabilities. Based on an analysis performed by means of interviews, using assisted assessment methodology and automated vulnerability-finding method, I suggest security enhancements. The theoretical part of the thesis provides an introduction to the topic of data protection and defines the basic related terms.
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Vulnerability assesment tools
Charvát, Michal ; Veber, Jaromír (advisor) ; Klíma, Tomáš (referee)
This bachelor thesis is focused on a specific area of information systems security, which is called vulnerability assesment. Vulnerability assesment is executed with special tools called vulnerability scanners. In the the beginning of the first part I will introdukce the area of information systems security and its breaf history, the basic terms of vulnerability assesment and related topics, such as penetration testing. In the following part few test will be executed using some of the chosen available and free tools and then analyze its results. The main criteria will be the number and criticality of the given vulnerabilities. Finally the user-friedly aspect of each tool will be evalueted, which could be a little subjective matter.
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Vulnerability Management in the Corporate IT Infrastructure
Hronek, Tomáš ; Veber, Jaromír (advisor) ; Klíma, Tomáš (referee)
The present thesis deals with the area of vulnerability management and its relation to information security. Its main purpose is to set the topic of vulnerability management in context of company information security and to explain its relationship to related disciplines. In the practical part, selected vulnerability assessment tools are compared and methodology is applied to determine the criticality of the vulnerabilities identified in relation to the provided IT services. The objectives were achieved by literature review, personal consultations with employees responsible for information security at J&T Bank and by comparing the results of several tools for assessing vulnerability (Nessus, Retina, OpenVAS, Nexpose, Tripwire). To date, there has not been published a thesis devoted exclusively to the topic of vulnerability management. This thesis is the first one to provide comparable results of vulnerability scanning of the same targets. Equally valuable is the application of Common Vulnerability Scoring System to determine the criticality of the vulnerabilities identified in relation to delivered IT services.
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