This article gave you a brief idea of how to go about testing an application. pathshorten: all but containing directory, Send multiple REST requests at the same time. Is it legal for a pointer to point to C++ register?
In the case of thick clients, major processing/validations are carried at the client side. Refer towww.owasp.org for more details on the vulnerabilities listed above. Here is a list of tools which are commonly used for performing thick client pentesting: That’s all readers for now. GADI007 is an Information Security Professional with experience in network and Web application penetration testing. There are multiple tools which help us to check the same (A free tool for the same is Winhex). Here our goal is to attempt to upload malicious files which can be injected into the application input request which can lead us to shell upload/ malicious code execution.
Security Assessment of Thick client applications: Application security assessments of thin client applications are comparatively easier than thick client application, as these are web based applications which can be intercepted easily and major processing takes place at the server side. For an easy to understand approach, thick clients are applications which are deployed locally on our systems. During the installation and execution of thick client applications, these apps tend to write/modify sensitive details in the files and registries. Test cases on session validity/ expiration/ fixation comes under this method. In testing J2EE applications, these tools can be used with one another based on the components involved in the applications. Exploit: An attacker might get access to this configuration file containing the database connectivity details. We can break down the different types of pen testing a thick client into: Dynamic testing generally follows data flow from the client side to server side. You need to iterate multiple queries with a mix and match by observing response to each of them. An attacker may run a memory reading tool like WinHex in the machine to analyze the entire memory content used by the application. The application will send a SQL query to the database with the username entered, and retrieve the correct password. It works like premium version but there is a limitation for VUs up to 50. The victim network then uses the Mallory gateway to route traffic. A thick client is one of the components in client-server computing architecture that is connected to the server through a network connection and doesn’t consume any of the server's computing resources to execute applications. The ideal setup for Mallory is to have a “LAN” or “Victim” network that Mallory acts as the gateway for. Process Monitor is an advanced monitoring tool for Windows that shows real-time file system, registry and process/thread activity. Some good links for a collection of sqli payloads: You can crawl the net for multiple payloads to find the one which is appropriate for the application you are testing. Best Software Testing Tools 2020 [QA Test Automation Tools] The screenshot below shows the Gtalk traffic intercepted by the Echo Mirage tool. During installation, a two tier thick client application stores a configuration file locally on the machine containing the database IP, port, username and password locally. The attacker can get access to these sensitive details and might compromise the application. Could you potentially turn a draft horse into a warhorse? In this type, the application is installed on the client side, which directly communicates with the database on the server. Introduction to Thick Client Penetration Testing – Part 1, OWASP Top 10 Web Application Security Risks: SQL Injection, Identifying UART Pins Without a Multi-Meter, Web Services and API Penetration Testing Part #2, Dynamic Testing ( fuzzing, traffic interception, injections), System Testing ( checking for logs, data files, registry keys, process threads), Static Testing ( reverse engineering, binary analysis ), https://github.com/fuzzdb-project/fuzzdb/tree/master/attack/sql-injection/payloads-sql-blind, http://pentestmonkey.net/cheat-sheet/sql-injection/mysql-sql-injection-cheat-sheet, System Internals ( Process Monitor, Regedit, Regshot, AccessEnum), Tsearch ( find and replace strings in memory), Metasploit ( used for side loading/ DLL and Exe injection), Intercepting thick client applications and tampering request/ response, Deserialization of traffic analysis of java thick clients. This can be configured within a virtual machine environment using only network interfaces. An application might store sensitive data like user credentials or encryption keys into the memory and store them until they get written by other data. How to get back a backpack lost on train or airport? I am not sure if you can combine all of these but you should be able i guess.
Tester tries in this case to extract verbose error messages which may give information about underlying framework, application code and log details. Here the bulk of processing and operations are performed on the client side, while the database operations and queries once executed makes the data processed and stored on the database. Here our main goal is to test all the input parameters for different types of attacks which includes: SQL injection is one of the prime attacks you can carry onto a thick client’s database. What is a proper way to support/suspend cat6 cable in a drop ceiling? Application Security Testing of Thick Client Applications, http://intrepidusgroup.com/insight/mallory/, https://www.aspectsecurity.com/research/appsec_tools/javasnoop/, Open-source application security flaws: What you should know and how to spot them, 14 best open-source web application vulnerability scanners [updated for 2020], Advanced .NET Assembly Internals [Updated 2019], Response —– …….U.s.e.r=A.D.M.I.N…..A.c.c.o.u.n.t.N.o=1111, Response —– …….U.s.e.r=C.U.S.T.…..A.c.c.o.u.n.t._.N.o=2111, Response —- … MD5Hash_Password= 3f7caa3d471688b704b73e9a77b1107f, Injecting into a currently running process. Referenced under multiple names, such as: Fat client/Heavy client/Rich client/Thick client, such applications follow a client–server architecture. Asking for help, clarification, or responding to other answers. Thick clients can be developed using multiple languages such as: .NET, C /C++, Java.
All applications, be it web based or thick client applications, temporarily store data into the memory (Random Access Memory) for further processing. This password is compared locally at the client side with the password entered by the user on the login page. Exploit: The attacker can enter a correct username (say Cust1) and a wrong password on the login page. By instructing the client to open its connection to the ITR instead of the server, the entire connection is shifted to work through the ITR, without the client or the server noticing a difference. Echo Mirage can be run in two different modes: By launching an executable from Echo Mirage. The gateway machine will have at least one WAN interface that grants Internet access. More details can be found here:http://www.wireshark.org/.
For example,when an Admin logs in, the response sent by the application is as follows: When a low privileged user logs in, the response sent by the application is as follows: Exploit: In this case, the attacker or the lower privileged user will intercept the response and modify the User and Account_No parameter to that of the Admin and get access to the administrator module.
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