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Black-Box Analysis of Wi-Fi Stacks Security
Venger, Adam ; Orsák, Michal (referee) ; Malinka, Kamil (advisor)
Zariadenia, na ktoré sa každodenne spoliehame, sú stále zložitejšie a využívajú zložitejšie protokoly. Jedným z týchto protokolov je Wi-Fi. S rastúcou zložitosťou sa zvyšuje aj potenciál pre implementačné chyby. Táto práca skúma Wi-Fi protokol a použitie fuzz testingu pre generovanie semi-validných vstupov, ktoré by mohli odhaliť zraniteľné miesta v zariadeniach. Špeciálna pozornosť bola venovaná testovaniu Wi-Fi v systéme ESP32 a ESP32-S2. Výsledkom práce je fuzzer vhodný pre testovanie akéhokoľvek Wi-Fi zariadenia, monitorovací nástroj špeciálne pre ESP32 a sada testovacích programov pre ESP32. Nástroj neodhalil žiadne potenciálne zraniteľnosti.
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Secure Development Framework for Web Applications
Mazura, František ; Ovšonka, Daniel (referee) ; Barabas, Maroš (advisor)
This thesis deals with the theoretical analysis of vulnerabilities in web applications, especially the most frequent vulnerabilities of OWAST TOP 10 are examined. These vulnerabilities are subsequently analyzed for the design of a web application development framework and practically implemented in this framework to prevent the vulnerabilities or, if necessary, defend itself. The main goal of the implementation is to achieve such a framework so that the programmer of the resulting web application is protected to the utmost.
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Implementation of ISMS in the Commercial Company
Dejmek, Martin ; Soška, Libor (referee) ; Sedlák, Petr (advisor)
This master thesis deals with the implementation of information security management system in the company. It summarizes the theoretical background in this field and uses it to analyze the current state of information security, as well as analysis and risk management and not least the actual implementation of ISMS in the particular company. This work also contains three groups of measures that reduce the impact of identified risks and which also implements an essential parts of ISMS.
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The Introduction of Information Security Management System in IT Enterprise
Riegl, Tomáš ; Sedlák, Petr (referee) ; Ondrák, Viktor (advisor)
This thesis deals with the introduction of information security management system in IT enterprise. It includes theoretical knowledge which are necessary for the understanding of this issue and their application for the analysis of the current state of information security, risk analysis and risk management. Last but not least for the actual implementation of information security management system in the company. The implementation of ISMS was divided into two phases. This thesis details the first phase.
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Information security management system project
Kameníček, Lukáš ; Kotek, Luboš (referee) ; Fiala, Alois (advisor)
This diploma thesis analyses the current state of information security management in an organization. In the theoretical part of the thesis general concepts are described as well as the relations between risk management and information security, applicable laws and standards. Further, the theoretical part deals with the risk analysis and risk management, strategies, standard procedures and methods applied in this field. In the practical part a methodology is suggested for information risk analysis in a particular organization and appropriate measures are selected.
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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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