National Repository of Grey Literature 89 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
Implementation of Information Security Management in Company According to ISO 27001
Šumbera, Adam ; Vala, Zdeněk (referee) ; Sedlák, Petr (advisor)
This diploma thesis deals with implementation of the information security management system in company. The theoretical part of thesis summarizes the theoretical knowledge in the field of information security and describes a set of standards ISO/IEC 27000. In the following section the specific company is analysed, and to this company there are then applied theoretical knowledge during the implementation of information security management system.
Security of Red Hat Enterprise Linux based operating systems
Kňažeková, Nikola ; Ilgner, Petr (referee) ; Komosný, Dan (advisor)
Táto diplomová práca sa zameriava zvyšovanie bezpečnosti v operačných systémoch založených na Red Hat Enterprise Linux, na základe analyzovaných zraniteľnosti za posledných 5 rokov. V teoretickej časti sú popísané slabiny a zraniteľnosti, základné bezpečnostné mechanizmy v Linuxe, so zameraním na technológiu SELinux. Technológia SELinux je súčasťou operačných systémov Red Hat Enterprise Linux, Fedora a CentOS. Na základe analyzovaných zraniteľností bola v praktickej časti navrhnutá konfigurácia technológie SELinux. V návrhu sú popísané prvky, ktoré sa budú konfigurovať a tými sú SELinuxové booleany, SELinuxové moduly a SELinuxoví užívatelia, so zameraním na ochranu pamäte, eskalovanie privilégií, spúšťaniu kódu, úniku dat a obmedzenie procesov a užívateľov. Na základe návrhov bola vytvorená konfigurácia v konfiguračnom nástroji Ansible, ktorej cieľom je umožniť užívateľovi jednoducho a rýchlo nakonfigurovať hosťa. Okrem nej boli vytvorene ďalšie dve konfigurácie, ktoré umožnia vrátiť systém do predchádzajúceho stavu alebo uzamknúť SELinuxovú konfiguráciu. Následne sa overoval dopad konfigurácií na použiteľnosť systému a nájdené chyby boli opravené alebo nahlásené. Posledná časť overuje funkčnosť konfigurácie pred zneužitím zraniteľností.
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.
Proposal for the Implementation of Security Measures in the Software Development Company
Štěpánek, Daniel ; Jordán, Vilém (referee) ; Sedlák, Petr (advisor)
Master's thesis focuses on proposal for the implementation of security measures in the software development company. Theoretical section defines chosen information security terms. Analytical section deals with analysis and assessment of current security situation in the company. Solution proposal contains risk analysis, proposal of security measures for risk treatment and economic evaluation.
Company´s Security Policy
Svobodová, Dagmar ; Mišurec,, Jiří (referee) ; Ondrák, Viktor (advisor)
This thesis deals with an evaluation of the current security status of informatic systems and technologies in a specific company. It determines the optimal solution of analyzed security risks. The thesis also gives the proposals for improvements.
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.
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.
Security exercises for ethical hacking
Paučo, Daniel ; Lieskovan, Tomáš (referee) ; Martinásek, Zdeněk (advisor)
This master thesis deals with penetration testing and ethical hacking. Regarding to the layout of the thesis there was prepared appropiate enviroment to realize Red/Blue team exercise, where Red team is in a role of the attacker and Blue team is in a role of defender of the network infrastructure. Whole infrastructure is implemented in a cloud virtual enviroment of VMware vSphere. Second part of the thesis consists of preparation and creation of the exercise to test web application security. Third part of the thesis is dedicating to the automatization of redteaming. Main focus of this master thesis is to demonstrate different attack vectors how to attack the network infrastructure and web applications and use of the defense mechanisms to avoid this kinds of attacks.
Implementation of a vulnerability assessment calculator
Ludes, Adam ; Švikruha, Patrik (referee) ; Martinásek, Zdeněk (advisor)
This bachelor thesis focuses on a newly introduced vulnerability scoring system, compares it to a most widespread alternative, which is Common Vulnerability Scoring System (CVSS), analyzes the Vue.js framework and other technologies used in the implementation. Lastly it introduces an implementation of said new scoring system in a way to best showcase its capabilities.
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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