security study

contains sensitive dataq never directly store user-supplied (user-supplied) the arrayq careful use of serialization (serialization)q use local methods with caution (Native methods)q Clear Sensitive informationJava Safe anti-patternq ignoring those full-pattern code inadvertently creates a loophole.typical of Java Secure encoding anti-pattern (antipatterns):Ignore language features ( such as Integer overflow (Overflow))do not pay attention to using serialization , do not pay attention

anything under the/www directory. AddUser--home/www-c "Web application" wwwJsessionidModify Cookie variable jsessionid, This cookie is used to maintain the Session relationship. I suggest you change to Phpsessid. 15.5 Http Parameter PollutionSubmit two identical parameters, different server will have different processing.650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/88/76/wKioL1f4-fXhU3PrAAI8C1cED3M649.jpg "title=" 155. JPG "alt=" wkiol1f4-fxhu3praai8c1ced3m649.jpg "/>This article

a page in the same session and destroyed when the session ends. So Sessionstorage is not a persistent local store, only session-level storage. localstorage is used for persistent local storage, and the data is never expired unless the data is actively deleted. Advantage:q storage space: storage space Larger : each individual storage space under IE8 is 10M, and other browsers are slightly different, but much larger than cookies . q server: The stored content is not sent to the server: When s

does does appear to has any style information associated with it. The document tree is shown below. 2.2Browser Sandboxthe current browser is mostly a multi-process architecture, the browser of the various function modules, each browser instances are separated, and when a process crashes, it does not affect other processes. sandboxes can access local file systems, memory, database, and network requests through the encapsulated API. Browser plugins are a source of threats that program bro

Java Study Notes 45 (multithreading 2: security issues and solutions), java Study Notes Thread security issues and solutions: Security issues occur when multiple threads use one shared data. A classic case: Tickets are sold in cinemas, with a total of 100 seats and a maximu

[In-depth study of Web security] in-depth use of XSS vulnerabilities and in-depth study of xss Preface Starting from this lesson, Xiaozhai has changed the layout again, hoping to give you a better reading experience. The basic principle of XSS is HTML code injection. In this lesson, we will take a deeper look at How To Exploit XSS. Analysis on XSS Exploitation Te

Case study-System Security Table of Contents 1 case study-System Security 1.1 Access Control and PMI permission management 1.2 Network Security 1.2.1 Information System Security Threats 1.2.2 network-leve

, various aspects of the implementation of security, to avoid omissions, the different security programs need to cooperate with each other, constitute a whole; Ii. security programmes need to be a permanent solution.for Rich text XSS defenses , I can now do this by using the " Whitelist ". But there are still some more serious loopholes in the white list . so I s

ArticleDirectory Authentication Authorization Secure Communication I feel very lacking in website security, so I want to study it well, so I ran to the MS website to find information ~ Http://www.microsoft.com/china/technet/security/guidance/secmod01.mspx I learned to keep some text ~ Article 1 Construct a secure distributed Web Applica

intruders to modify your home page (at least you don't need to find your web directory on that disk)4. may be exploited by some other CGI vulnerabilities to find files in a web directory such as Xx.asp, XX. JSP, XX. PHP and other What are the main aspects of JSP security issues? This section focuses on the JSP security issues to classify and propose solutions, so for each type of

In-depth study of the thread security model of PHP and ZendEngine. When I read the PHP source code and learned PHP extension development, I was exposed to a large number of macros containing TSRM words. By checking the information, we know that these macros are related to the Zend thread security mechanism. most of them are reading the PHP source code and learnin

. Use Space (SPACEBAR) to page, Enter (enter) scroll down one line, or use j , k (Vim Editor's move key) to scroll backward one line forward. Press the h key to display the use Help (because man uses less as the reader, which is actually less the tool's Help), press q exit.For more detailed help, you can also use info commands, but man it is often enough to use them. If you know the purpose of a command, just want to quickly see some of its specific parameters of the role, then you can use --he

;Assigning Database System Privileges1Sql> SelectDESTINCT privilege fromDba_sys_privs;2Sql> Grant CreateSession to user_name#minimally AUserNeedsCREATESESSION toBe able toConnect toTheDatabase.3Sql> RevokeCteateTable from user_name; # toTake awayPrivileges.4Sql> Grant Create Table to user_name withAdminoption; #allows You to GrantA system privilege toAUser andalso give thatUserThe ability toAdminister a privilege. You can does this withThe withADMINOPTIONClause.Assigning Database Object Priv

Information Security System Design Foundation Fifth Week study summary"Learning Time: 10 hours""Learning content: Chapter III: Machine Representation of the program"First, the contents of the textbook 1. Changes in X86 addressing modes:1 The flat mode of the DOS era, does not distinguish between user space and kernel space, very insecure;2 8086 sub-mode;3 IA32 Flat mode with protected mode2. Two kinds of ab

20165214 2018-2017-1 "Information Security system Design Fundamentals" The third week study summary of learning Contents1. In fact, the GCC command invokes a series of programs that convert the source code into executable code.2, the actual realization of the memory system is to combine multiple hardware memory and operating system software.3. ISA: Instruction set architecture, which defines the state of th

2018-2019-1 20165228 "The foundation of Information security system design" The second week study summary textbook learning content Summary information = bit + context Unsigned encoding: Represents a number greater than or equal to zero based on the traditional binary notation Complement coding: represents the most common way to sign a certificate, a number that can be expressed or positive or negativ

20145216 Shi Yao "The basis of information security system Design" 6th week Study Summary teaching contents summary Fourth Processor architecture first section Y86 instruction set architectureFirst, the programmer visible State1. Meaning: Each instruction will read or modify some parts of the processor state2. "Programmer": it can be the person who writes the program with assembly code, or it can be a compi

20145311 "The basis of information security system design" 13th Week study summary Textbook Learning content summary 11th Chapter Network programmingClient-Server programming model一个应用是由一个服务器进程和一个或多个客户端进程组成服务器进程 -> 管理某种资源 -> 通过操作这种资源来为它的客户端提供某种服务基本操作：事务一个客户端-服务器事务由四步组成： 当一个客户端需要服务时，向服务器发送一个请求，发起一个事务。 服务器收到请求后，解释它，并以适当的方式操作它的资源。 服务器给客户端发送一个相应，并等待下一个请求。 客户端收到响应并处理它。Both the client and the server a

# 20145301 "Fundamentals of Information Security system Design" 5th Week study Summary# # Textbook Learning Content Summary* X86 addressing mode through three generations:1 The flat mode of the DOS era, not distinguishing between user space and kernel space, very insecure2-8086 segmented mode3 IA32 Flat mode with protected mode* CPU contains a set of 8 registers that store 32-bit valuesstored integer data a

2018-2019-1 "Information Security system design basics" x-week study summary of learning ContentsSummarize what you learned this week as simple as possible.Try not to transcription, waste timeRead it, do not understand, learn to remember the experienceProblems in teaching materials learning and the solving process(a template: I read this paragraph of text (quoted text), there is this problem (ask questions)