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- WebView File Domain Origin Policy Bypass Vulnerability Example Analysis
- Basic knowledge of the Android architecture. Kernel kernel layer vulnerabilities are extremely harmful. The versatile drivers are numerous and complex, and there may also be many vulnerabilities. Libraries system runtime library layer system middleware provides runtime libraries including libc, WebKit, SQLite, etc. AndroidRunTimeDalvik virtual The machine and kernel library FrameWork application framework layer provides a series of services and API interfaces Activity Manager Content Provider View Resource Manager Notification Manager Application Application Layer System Application Home Screen Home, Contact Contact, Phone Phone, Browser Others Application developers use the application framework layer to
- Safety 1533 2023-05-15 08:22:14
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- What is NMAP's port scanning technology?
- What is a port? Comparing network equipment to a house, then the ports are the entrances and exits to and from the house (the strange thing is that this house has too many entrances and exits, as many as 65,535). These entrances and exits are used for data to enter and exit the network equipment. The purpose of setting ports is to achieve "one machine for multiple purposes", that is, to run multiple different services on one machine. So when multiple programs are running on a machine, how does the machine distinguish the data of different programs? This task is handled by the operating system, and the mechanism used is to divide 65535 different port numbers. When the program sends information, it will bring the port number in the data, and after receiving the data, the operating system will divert the information to the program using the port number in the current memory according to the port number. Port points
- Safety 1830 2023-05-14 23:43:04
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- What are the basic knowledge points for web testing?
- 1. Web application applications have two modes, C/S and B/S. C/S mode, that is, Client/Server (client/server) mode, this type of program can run independently. B/S mode, that is, Browser/Server (browser/server) mode, this type of program needs to be run with the help of a browser. Web applications are generally in B/S mode. A Web application is composed of various Web components (webcomponents) that complete specific tasks and displays services to the outside world through the Web. In actual applications, Web applications are composed of multiple Servlets, JSP pages, HTML files, image files, etc. Understand web applications, the
- Safety 722 2023-05-14 23:19:04
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- What are the basic features of bash
- #Command alias of basic features of bash In the shell process, bash can set an alias for the command itself or the command plus options. After setting, you can directly enter the alias to call its function. The way to set the command alias is: ~]#aliasNAME=COMMAN. The way to revoke a command alias is: ~]#unaliasNAME The way to view the command aliases that have been set in the current bash is: ~]#alias Note 1: The life cycle of the command alias set in this way is only the current shell process. Exiting the current shell and logging in again will no longer work. If you want it to take effect automatically after the shell starts, you need to set the bash environment variable related configuration file. Note 2: If the command alias and command
- Safety 1558 2023-05-14 23:07:10
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- How to analyze APT Trojans based on the threat intelligence cycle model
- About the Threat Intelligence Processing Cycle Model The term "Threat Intelligence Processing Cycle" (F3EAD) originates from the military. It is a method for organizing resources and deploying troops designed by the US Army's commanders at all levels of the main combat arms. The Network Emergency Response Center draws on this method and processes threat intelligence information in the following six stages: Threat Intelligence Processing Cycle Application of the F3EAD Threat Intelligence Processing Cycle Model Step 1: Find a date on a certain month and deploy it on the partner's public cloud server The "Onion" system alarm found a suspected Trojan horse program, so the emergency response team quickly started the emergency response process: stakeholders and others gathered the group with one click and called in. The victim system is isolated for investigation. The security system and audit logs are exported for traceability analysis. Preparation of business system architecture and code-related information to analyze intrusion breaches and victims
- Safety 1766 2023-05-14 22:01:12
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- How to analyze juniper switch ex2200 configuration and simple commands
- qnqy-dpf-jrex2200-01#show|displaysetsetversion12.3R11.2setsystemhost-nameqnqy-dpf-jrex2200-01setsystemtime-zoneAsia/Shanghaisetsystemroot-authenticationencrypted-password"$1$7RMyTyeG$tLGAToBggMFhcOw85Ts.EP/"setsystemloginuseradminuid2000set
- Safety 2082 2023-05-14 21:58:04
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- How to fix net use 1231 error
- The company has a server, and I was able to log in to it normally using netuse. After removing the virus today, I found that I couldn't log in to it, but other employees in the company were able to log in to it normally, so the problem must be on my own machine. The error reported was a netuse1231 error. I searched on Baidu and a lot of people said it was caused by netbios, but they all failed. Fortunately, I found a foreign website and found the problem. Now I will record the problem here. , the reason is that the Microsoft network client is turned off. If this option is selected, netuse will succeed normally!
- Safety 1171 2023-05-14 21:10:13
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- How to Reproduce Weblogic SSRF Vulnerability
- 1. Use docker to build an environment. Docker installation and environment building tutorial: https://www.freebuf.com/sectool/252257.html Access port 7001 2. Vulnerability reproduction steps 1. Vulnerability page/uddiexplorer/SearchPublicRegistries.jsp 2. Check Check out IBM and find that it is a connection, so there may be ssrf. 3. Use burpsuite to capture packets and click Search. 4. Modify the connection of operator parameters. 5. Access results. Accessing a non-existent port returns couldnotconnectoverHTTP.
- Safety 1373 2023-05-14 20:04:04
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- How to implement a mapped array without map() in Javascript
- For mapping arrays without map(), let’s first introduce the map method. The map() method returns a new array. The elements in the array are the values of the original array elements after calling the function. It will process the elements in sequence according to the order of the original array elements. Note: map() does not change the original array, nor does it detect empty arrays. Let's implement an array mapping without map: //array.map(function(currentValue,index,arr),thisValue)varplants=[{name:"Saturn"},{name:"Uranus"},{
- Safety 1310 2023-05-14 20:01:04
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- How to recover Micro officescan quarantined deleted files
- 1. Enter the actual installation directory of officescan. 2. Enter VSEncode.exe/U and press Enter. 3. Select the file you want to restore and click Restore.
- Safety 1017 2023-05-14 17:46:12
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- How to reset the recursion limit in Python
- Resetting the recursion limit Python limits the number of recursions to 1000. We can reset this value: importsysx=1001print(sys.getrecursionlimit())sys.setrecursionlimit(x)print(sys.getrecursionlimit())#1->1000#2- >1001
- Safety 1063 2023-05-14 17:04:11
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- How to crack MD5 ciphertext
- We have successfully exposed the website administrator account admin and password "3acdbb255b45d296", which is a password encrypted by MD5. MD5 ciphertext cracking can be said to be an essential link in the network. The current so-called MD5 cracking is basically based on database query, that is, an MD5 ciphertext database is generated based on commonly used password dictionaries, and then the ciphertext to be cracked is stored in Query in the database. If the MD5 value exists in the database, then the plain text corresponding to the value is the password. Currently, many websites provide MD5 decryption services, but most of them charge for slightly more complex passwords. Here we mainly introduce how to use the software MD5Crack4.1 to crack MD
- Safety 5270 2023-05-14 16:19:06
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- How to use javascript to implement custom event functions
- Overview Custom events are hard to come by? Why is it difficult for custom events to come in handy? Because js was not developed in a modular manner and rarely collaborated. Because the essence of an event is a communication method and a message, only when there are multiple objects and multiple modules, it is possible to use events for communication. Now with modularization, custom events can be used to collaborate between modules. Where can I use custom events? The essence of an event is a kind of message, and the event pattern is essentially the implementation of the observer pattern. So wherever the observer pattern is used, the event pattern can also be used. Therefore, if: 1. A target object changes, multiple observers need to adjust themselves. For example: I need element B to be displayed after element A is clicked.
- Safety 1029 2023-05-14 16:04:06
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- How to use JVM monitoring and analysis tools in UAVStack
- Introduction As the intelligent service technology stack of AllInOne, UAVStack provides a very comprehensive monitoring data sampling function and supports data monitoring and early warning. Recently, we have integrated the original data collection and display functions, added JVM analysis functions, and launched a more easy-to-use JVM monitoring and analysis tool. Developers who are familiar with JDK know that JDK itself provides a set of JVM analysis tools, including jinfo, jmap, jstack, etc. Users can easily obtain JVM memory stack information, memory object allocation, and basic JVM startup parameter information through the command line. However, these tools need to be executed in a command line environment, and in a production environment they need to be forwarded through the bastion host. Some good JVM analysis tools in the open source community
- Safety 1496 2023-05-14 15:31:12
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- How to reproduce the RCE vulnerability in Apache Solr JMX service
- 0x00 Introduction Solr is an independent enterprise-level search application server that provides an API interface similar to Web-service. Users can submit XML files in a certain format to the search engine server through http requests to generate indexes; they can also make search requests through HttpGet operations and get returned results in XML format. The vulnerability stems from the security risk in the ENABLE_REMOTE_JMX_OPTS configuration option in the default configuration file solr.in.sh. ENABLE_REMOTE_JMX_OPTS= exists in the built-in configuration file solr.in.sh of versions 8.1.1 and 8.2.0 of ApacheSolr.
- Safety 1437 2023-05-14 14:25:06
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