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SoapFormatter deserialization vulnerability example analysis

SoapFormatter deserialization vulnerability example analysis

1. Preface NetDataContractSerializer and DataContractSerializer are used to serialize and deserialize data sent in Windows Communication Foundation (WCF) messages. There is an important difference between the two: NetDataContractSerializer includes the CLR, adding extra information through CLR types and saving references to support type precision, while DataContractSerializer does not. Therefore, NetDataContr can only be used if the same CLR type is used on the serialization and deserialization sides

May 14, 2023 am 09:07 AM
SoapFormatter
Javascript how to convert array to object

Javascript how to convert array to object

Converting an Array to an Object If you want to convert an array to an object, the fastest way is with the spread operator (...). varplants=['Saturn','Earth','Uranus','Mercury','Venus','Earth','Mars','Jupiter'

May 14, 2023 am 08:49 AM
JavaScript
Why does online behavior management ban teamviewer?

Why does online behavior management ban teamviewer?

A few days ago, the Shenzhen Network and Information Security Information Notification Center issued an emergency notice stating that the well-known remote office tool TeamViewer has been compromised by the overseas hacker group APT41, reminding corporate organizations to take protective measures. In other words, APT41 has broken through all the protection systems of TeamViewer and obtained relevant data permissions. The risk level is very high. Before teamviewer officially provides solutions and releases relevant patches, we recommend that users suspend the use of teamviewer software to avoid unnecessary losses. The following is an introduction to teamviewer communication methods and how to use WSG Internet Behavior Management to ban teamviewer. 1.teamv

May 14, 2023 am 08:37 AM
TeamViewer
How to implement PAP authentication in PPP

How to implement PAP authentication in PPP

[Experiment name] PPPPAP authentication [Experiment purpose] Master the process and configuration of PPPPAP authentication [Background description] You are the network administrator of the company. In order to meet the growing business needs, the company has applied for dedicated line access. Your client router and When ISP conducts link negotiation, it must verify the identity, configure the router to ensure link establishment, and consider its security. [Requirement Analysis] Ensure security verification during link negotiation. During link negotiation, the username and password are transmitted in clear text. [Preliminary knowledge] Basic router configuration knowledge, PPPAP knowledge [Experimental equipment] 2 routers (with serial ports) 2 V.35 cables (DTE/DCE) 1 pair [Experimental principle] PPP protocol is located in the data link layer of the OSI seven-layer model , PPP agreement

May 14, 2023 am 08:34 AM
ppp pap
APACHE OFBIZ XMLRPC Remote Code Execution Vulnerability Example Analysis

APACHE OFBIZ XMLRPC Remote Code Execution Vulnerability Example Analysis

Overview Researchers have reported a deserialization vulnerability in ApacheOFBiz. This vulnerability is caused by multiple Java deserialization issues and may be triggered when the code handles requests sent to /webtools/control/xmlrpc. An unauthenticated, remote attacker could trigger and exploit this vulnerability and achieve arbitrary code execution by sending a crafted malicious request. Vulnerability Analysis ApacheOFBiz is an open source enterprise resource planning (ERP) system that provides a series of enterprise applications to help enterprises automate many business processes. It contains a framework that provides common data models and business processes for all applications in the enterprise

May 14, 2023 am 08:10 AM
ofbiz xmlrpc
What are the advantages and disadvantages of mesh networking?

What are the advantages and disadvantages of mesh networking?

Advantages and disadvantages of mesh networking: 1. Advantages: The network automatically repairs. Its advantage is that it automatically roams seamlessly and does not drop when crossing routes. Weak signals are automatically removed and will automatically connect to strong router signals. It can also self-synchronize, modify the main router, and sub-routes will automatically synchronize wifi and other parameter configuration information. The self-healing function of the network topology is adaptive, and the connection methods are divided into: wired connection, wireless connection, and wired and wireless hybrid connection. 2. Disadvantages: Too many nodes. Its shortcomings are also obvious: delay, because each forwarding requires a certain delay, and the delay is higher after multiple forwardings. Especially when wireless backhaul uses chain connections, mesh networks are not suitable for networks with high real-time requirements. There should not be too many nodes. The characteristic is that during wireless backhaul, too many nodes will affect the bandwidth.

May 14, 2023 am 08:10 AM
mesh
How to analyze network layer related packets and data of TCP and IP

How to analyze network layer related packets and data of TCP and IP

TCP/IP network layer related packets and data 1) IP packet encapsulation: IPv4 has 32 bits and IPv6 has 128 bits. The maximum size of an IP packet can be 65535 bytes. Its structure is as shown below: Additional explanations are needed: Service type: Mainly divided into PPP, indicating the priority of this IP packet, which is rarely used at present; D, if it is 0, it means general delay (delay), if it is 1, it means It is low latency; T, if it is 0, it means normal transmission volume, if it is 1, it means high transmission volume; R, if it is 0, it means general reliability, if it is 1, it means high reliability; UU: Reserved and not yet used ;Total together, the format is PPPDTRUU. Flag: The format is DM, where D, if it is 0, it means it can be segmented, if it is

May 13, 2023 pm 11:55 PM
TCP ip
What are the big data tools and frameworks that Java developers must know?

What are the big data tools and frameworks that Java developers must know?

1. MongoDB - the most popular, cross-platform, document-oriented database. MongoDB is a database based on distributed file storage, written in C++ language. Designed to provide scalable, high-performance data storage solutions for web applications. Application performance depends on database performance. MongoDB is the most feature-rich among non-relational databases and is most like a relational database. With the release of MongoDB 3.4, its application scenario capabilities have been further expanded. The core advantages of MongoDB are its flexible document model, highly available replica sets, and scalable sharded clusters. You can try to understand MongoDB from several aspects, such as real-time monitoring of MongoDB tools, memory usage and page

May 13, 2023 pm 11:49 PM
Java
What is database auditing

What is database auditing

Database audit tools and their applications There are four basic platforms for creating, collecting, and analyzing database audits: local database platform, system information/event management and its log management, database activity monitoring, and database audit platform. 1. Local auditing: refers to using a local database for data acquisition, but using the database system itself to store, classify, filter and report events. IBM, Microsoft, Oracle and Sybase all offer different solutions for this situation, but essentially they all seek to obtain the same information. Although the data is typically stored in a database, it can be exported to plain text files or provided as XML data to other applications. The use of native functions saves the time spent on acquiring, deploying, and managing

May 13, 2023 pm 11:46 PM
数据库
How to perform Web permission maintenance analysis

How to perform Web permission maintenance analysis

Preface Permission maintenance, in the red-blue confrontation, I think its significance lies in two points: one is to prevent the obtained permissions from being destroyed by the blue team; the other is to prevent other red teams from obtaining the same permissions (although it is a bit unethical...). I won’t talk about illegal uses in other situations. I think the principle of maintaining permissions is that it cannot affect the normal operation of the original business. (For example, changing the background password will prevent the administrator from logging in, changing the read and write permissions of the folder will prevent normal files from being uploaded, etc.). Maintaining background permissions When we obtain background permissions through weak passwords or blasting, in order to prevent the administrator from changing the password or other red teams changing their passwords and losing permissions, in this case, we need to maintain the background permissions. Changing the background password yourself is of course the stupidest way. You can choose the method by following the

May 13, 2023 pm 11:28 PM
web
How to search for possible elements with javascript

How to search for possible elements with javascript

Note 1. The matching pattern you want to search may have parts that are not sure to exist. You can use question marks to specify possible elements. 2. This will check the previous zero or one element. This symbol can be considered as the preceding element. The example requires modifying the regular expression favRegex to match the word versions of American English (favorite) and British English (favourite). letfavWord="favorite";letfavRegex=/change/;//Modify this line letresult=favRegex.test(favWord);Reference letfavWord="favor

May 13, 2023 pm 11:07 PM
JavaScript
How to find the most frequent number in a list in python

How to find the most frequent number in a list in python

Find the most frequent number in the list test=[1,2,3,4,2,2,3,1,4,4,4]print(max(set(test),key=test.count))# ->4 What are the commonly used libraries in python? Commonly used libraries in python: 1. requests; 2. scrapy; 3. pillow; 4. twisted; 5. numpy; 6. matplotlib; 7. pygama; 8. ipyhton, etc.

May 13, 2023 pm 10:28 PM
Python
What are the Android APP testing process and common problems?

What are the Android APP testing process and common problems?

1. Automated testing Automated testing mainly includes several parts, automated testing of UI functions, automated testing of interfaces, and other specialized automated testing. 1.1 UI function automated testing Automated testing of UI functions, which is often referred to as automated testing, is mainly automated testing based on the UI interface. UI function clicks are realized through scripts, replacing manual automated testing. The advantage of this test is to effectively release the testing manpower for highly repetitive interface feature functional testing, and use the execution of scripts to achieve fast and efficient return of functions. However, the shortcomings of this kind of test are also obvious, including high maintenance costs, easy misjudgment, and insufficient compatibility. Because it is based on interface operation, the stability of the interface becomes

May 13, 2023 pm 09:58 PM
Android
What are the SQL injection syntaxes?

What are the SQL injection syntaxes?

SQL injection syntax error injection updatexml(1,concat(0x7e,(selectdatabase()),0x7e),1)--+extractvalue(1,concat(0x7e,(selectdatabase()),0x7e),1)--+selectcount (*)frominformation_schema.tabelesgroupbyconcat((selectdatabase(),floor(rand(0)*2)selectsubstr(version(),1,1)=&#39

May 13, 2023 pm 09:52 PM
SQL

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