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How to use HCL for Telnet remote login

How to use HCL for Telnet remote login

The following will introduce to you how to use the hcl simulator to configure remote login of the device and test it. 1. Open HCL and draw the topology map correctly ps: Since the HCL virtual host cannot perform Telnet verification, add a local host for testing 2. Enter the device and correctly configure the device for remote login system-viewintg0/0ipadd192.168.1.124 (Configure remote login IP)quittelnetserverenable (Open Telnet service) linevty04set-authenticationpasswordsimple123 (Set authentication password) user-rolenet

May 23, 2023 pm 09:04 PM
telnet hcl
What are the security risks if the SDK is not hardened?

What are the security risks if the SDK is not hardened?

What security risks will exist if the SDK is not hardened? 1. It is easy for competing products or malicious parties to peek into the internal implementation details or internal calling processes, and may even leak private data. Most of the Android platform SDKs are written in Java and are easy to be decompiled. If it is just a simple obfuscation, it is easy to spy on the internal implementation details; if there is some private data inside the SDK, it is easy to be leaked. More importantly, if these details involve key technology implementation points, it is tantamount to leaking core technology. 2. Malicious advertisements or malicious code are implanted by malicious actors through bytecode injection and other means, and then repackaged and released. Due to the particularity of the SDK, there is no signature verification logic like App, so once the malicious actor implants it in your SDK some malicious code or

May 23, 2023 pm 05:05 PM
sdk
How to understand scroll

How to understand scroll

scroll width and height scrollHeight scrollHeight represents the total height of the element, including the invisible part that cannot be displayed on the web page due to overflow scrollWidth scrollWidth represents the total width of the element, including the invisible part that cannot be displayed on the web page due to overflow [Note] IE7-Browser The return value is inaccurate [1] When there is no scroll bar, the scrollHeight and clientHeight attributes are equal, and the scrollWidth and clientWidth attributes are equal //120120console.log(test.scrollHeight,test.s

May 23, 2023 pm 01:40 PM
scroll
How to perform route-map parsing

How to perform route-map parsing

1. Route-map analysis 2. Experimental topology 3. Experimental configuration R1 configuration interfaceSerial0/0ipaddress12.1.1.1255.255.255.0interfaceSerial0/1ipaddress13.1.1.1255.255.255.0interfaceSerial0/2ipaddress14.1.1.1255.255.255.0routereigrp90redistributeosp f110metric150010025511500network14.1.1.00.0.0.255

May 23, 2023 pm 12:01 PM
route-map
Example analysis of WvEWjQ22.hta Trojan rebound shell sample

Example analysis of WvEWjQ22.hta Trojan rebound shell sample

IZhongbao received a call from a customer at night, saying that a suspected attack had been detected and asked me to conduct emergency response and trace the source. I was helpless and had no choice but to get up from the bed and pick up my notebook. Through preliminary analysis, it was found that WvEWjQ22.hta executed a powershell process. After in-depth analysis and judgment, it was found that the traffic had been Base64 encoded twice + Gzip encoded once. The ShellCode decoded by reverse analysis and debugging was a TCP rebound shell generated by CS or MSF, and the source was finally traced. Find the attack IP and end the Powershell process and TCP rebound shell process. II attack method uses the WvEWjQ22.ht Trojan encoded three times to bypass the situational awareness system detection and early warning execution powers

May 23, 2023 am 11:28 AM
shell WvEWjQ22.hta
Example analysis of Spring Boot Actuator's unauthorized access to getshell

Example analysis of Spring Boot Actuator's unauthorized access to getshell

The boss of the preface department dug up this vulnerability in a certain src. It was an old hole. I thought it was interesting, so I set up a local environment to test it. Actuator is a functional module provided by springboot for introspection and monitoring of application systems. With the help of Actuator, developers can easily view and collect statistics on certain monitoring indicators of the application system. When Actuator is enabled, if relevant permissions are not controlled, illegal users can obtain monitoring information in the application system by accessing the default actuator endpoints, leading to information leakage or even server takeover. As shown above, the actuator is springb

May 23, 2023 am 08:56 AM
spring boot getshell actuator
What is the relationship between threads and processes

What is the relationship between threads and processes

Relationship: 1. A process can have multiple threads, but there is at least one thread; and a thread can only be active within the address space of one process. 2. Resources are allocated to processes, and all threads of the same process share all resources of the process. 3. The CPU is allocated to threads, that is, the threads are actually running on the processor. 4. Threads need to cooperate and synchronize during execution. Threads in different processes must use message communication to achieve synchronization. Process is the basic unit of resource allocation. Thread is the basic unit of CPU scheduling and dispatch. Thread is part of the process. A thread can only belong to one process. A process can have multiple threads, but at least one thread is independent of each process. code and data space (program context), switching between programs is expensive, and threads

May 22, 2023 pm 10:35 PM
进程 线程
How to understand LDAP injection

How to understand LDAP injection

1. LDAP injection LDAP (Light Directory Access Portocol) is a lightweight directory access protocol based on the X.500 standard. It provides services and protocols for accessing directory databases. It is often used to form directory services with directory databases. The directory is a professional distributed database optimized for query, browsing and search. It organizes data in a tree structure, similar to the file directory in Linux/Unix systems. Data that is not modified frequently, such as public certificates, security keys, and company physical device information, is suitable for storage in the directory. LDAP can be understood as a search protocol, which is similar to SQL and has query syntax, but also has the risk of injection attacks. LDAP injection refers to the client

May 22, 2023 pm 09:47 PM
ldap
How to analyze intranet, public network and NAT

How to analyze intranet, public network and NAT

When we build a weak current monitoring system, we cannot avoid dealing with IP addresses. For example, after cameras, NVRs, servers and other devices are installed, they need to be assigned IPs. Do you know this IP address? Today we will Let’s talk about what are intranet, public network and NAT address translation? 1. Definition of intranet, public network and NAT. Intranet is also called local area network. In terms of scope, intranet is a small part of the network, which generally refers to a specific environment. form a network, such as a network where multiple computers in a family are interconnected, or a large LAN in a school or company. The IPs of the intranet are generally 192.168.1.100, 192.168.0.100, 172.16.1.100&hellip

May 22, 2023 pm 04:40 PM
nat
How to perform reverse analysis of SpyNote5.0 Client_APK

How to perform reverse analysis of SpyNote5.0 Client_APK

1. What is SpyNote5.0? SpyNote is a tool used to create Android malicious programs. Its functions are eye-catching, including reading contacts, recording, command execution, application management, keylogging, GPS positioning, and more. These functions serve as a link between the previous and the following for the study of Android-side malicious programs. We can have a preliminary understanding of its use through a series of articles, "SpyNote V5.0 graphical tool remote management Android mobile phone tutorial", "Be careful, the Android Trojan tool SpyNote is free!" Remote monitoring is so simple", "Beware, Android remote control (spynote) has been upgraded..." and so on. 2. Prepare tools for SpyNote

May 22, 2023 pm 04:18 PM
SpyNote Client_APK
How to analyze CLDAP protocol Reflection DDoS

How to analyze CLDAP protocol Reflection DDoS

Foreword In the first half of 2018, thanks to Memcache’s reflection amplification factor of nearly 50,000, the peak traffic of DDoS has reached an unprecedented new height of 1.7Tbps, which also makes MemcacheReDDoS the backbone of current DDoS. Compared with MemcacheReDDoS, although CLDAPReDDoS exposed by Akamai in 2016 is not as efficient as the former, its 56~70 times amplification factor is still a leader in the DDoS family, so it should also attract attention. 1. CLDAP protocol flaws: Lightweight Directory Access Protocol (LDAP) is defined in RFC2251 (LDAPv3). Since LDAP is based on T

May 22, 2023 pm 01:13 PM
reflection CLDAP
How to parse Apache vulnerability recurrence

How to parse Apache vulnerability recurrence

Apache parsing vulnerability Vulnerability principle The rule of Apache parsing files is to judge the parsing from right to left. If the suffix is ​​unrecognized file parsing, it will judge from the left. For example, the two suffixes of test.php.owf.rar ".owf" and ".rar" are not recognized and parsed by apache, and apache will parse wooyun.php.owf.rar into php. The vulnerability is in the form of www.xxxx.xxx.com/test.php.xxx Other configuration issues lead to the vulnerability (1) If there is such a line in Apache's conf to configure AddHandlerphp5-script.php, then as long as the file name contains .p

May 22, 2023 pm 12:10 PM
apache
Example Analysis of SDN Software-Defined Networking

Example Analysis of SDN Software-Defined Networking

SDN software-defined network 1: Dilemmas faced by today's networks The current network is dominated by the TCP/IP protocol, ranging from local area networks to the Internet. The network has changed our lives, but today's network is not a perfect network, and there are various problems. . 1: The TCP/IP protocol system is not static, but as network development problems arise, the existing protocol system has to be patched, making the entire protocol system very bloated. 2: A variety of control protocols are used. Network devices are not only responsible for data forwarding, but also responsible for generating and maintaining control-level forwarding entries. This makes the underlying network control protocol very complex, and the network equipment becomes very complex, making it difficult to deploy uniformly. At the same time, the cost is increased. 3: There is another disadvantage:

May 22, 2023 am 11:58 AM
sdn
How to understand Wireshark filtering rules and filtering options

How to understand Wireshark filtering rules and filtering options

ip.addr==192.168.6.1 Filter out the packets containing 192.168.6.1 ip.src==192.168.43.137 Filter out the packets with the source IP address 192.168.43.137 ip.dst==192.168 .43.137  Filter out the packets with the destination IP address 192.168.43.137 tcp.port==80  Filter out the 80 port number containing tcp  tcp.src==80  Filter out the 80 port number of the source tcp  tcp.dstport==80 Filter out the 80 port number of the target tcpeth.addr==68:17:

May 22, 2023 am 11:19 AM
wireshark

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