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Title: Thick Client Penetration Testing Modern Approaches and Techniques (1)


1
Thick Client Penetration Testing Modern
Approaches and Techniques
What Is Thick Client Penetration Testing ? A
client program that can offer rich functionality
without relying on the server in a network
is referred to as a thick client, also known as
a fat client. The majority of thick client
operations can be carried out without an active
server connection. While they do occasionally
need to connect to a network on the central
server, they
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  • can operate independently and may contain
    locally stored resources.
  • On the other hand, a thin client is a client
    program or computer that requires a connection
    to the server in order to work. Thin clients rely
    heavily on server access each time they need to
    analyze or validate input data because they
    perform as little processing on their own as is
    feasible.
  • Why do thick client applications need testing?
  • For internal operations, thick client
    applications are crucial. They are frequently
    used to interact with private data, such as
    financial and health records and they provide a
    significant danger to a business, particularly
    if they are legacy applications.
  • Thick clients function differently, and each has
    advantages and disadvantages of their own. The
    security that thin clients offer over thick
    clients is one of their main advantages. The
    following are some of the main security issues
    with thick clients
  • Sensitive data disclosure.

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  • Denial of Service (DoS).
  • Improper access control.
  • Improper session management.
  • Reverse engineering.
  • Injection attacks.
  • Variable and response manipulation.
  • Improper error handling.
  • Insecure storage.
  • How can thick client apps be tested?
  • Thick client applications require a certain
    strategy when it comes to a penetration test
    because they are typically more involved and
    customized than online or mobile applications.
  • When dealing with a thick client application, the
    initial step is to obtain data, such as
  • Identifying the technologies being utilized on
    both the server and client sides.
  • Determining the behaviour and operation of the
    program.
  • Locating the entire various user input entry
  • locations.
  • Recognizing the applications primary security
    techniques.

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  • Recognizing widespread vulnerabilities in things
    like languages and frameworks.
  • Phases of Thick Client Application Vulnerability
    Assessment Penetration Testing
  • Mapping and Scoping
  • Make a business process model and agree to it. By
    identifying and regulating access to documents
    and information, scoping ensures their security.
    It makes it possible to map out the problems for
    subsequent steps. A brief meeting with the
    client will be required as part of this process
    to review and confirm the rules of engagement
    for Thick Client Penetration Testing as well
    as to establish the project scope and testing
    schedule.
  • Enumeration and Information Gathering
  • The tester receives information from this stage
    that can be used to find and take advantage of
    vulnerabilities in the online applications. This
    phases objective is to detect any sensitive
    data, such as application technology, usernames,
    version information, hardcoded data, etc., that
    may be useful during the testing phases that
    follow.

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  • Scanning
  • To identify recurring problems in the thick
    client software, we employ a proprietary method.
    For our experts to investigate the tool also
    lists the thick clients network communication,
    inter process communication, operating system
    interactions, and other activities.
  • Vulnerability identification and assessment
  • The list of all targets and apps that fall under
    the scope of the vulnerability analysis phase
    will be compiled at both the network layer and
    the application layer. Our experts examine the
    setup of your thick client, detecting both
    issues with the default configuration and
    potential methods the application could be set
    up to avoid security measures.
  • Exploitation
  • All potential vulnerabilities found in the
    earlier stages of the assessment will be
    subjected to this phases effort to exploit them
    like an attacker would. Business logic problems,
    bypasses for

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  • authentication and authorization, direct object
    references, parameter manipulation, and session
    management are all included in this. The majority
    of thick clients make use of some server-side
    capability, and all thick clients or central data
    storage may be impacted by a server-side
    vulnerability that is successfully exploited.
  • Need Penetration Testing for Thick Client
    Applications?
  • Regardless of whether your thick client
    application is hosted internally or in a
    virtualized environment, Elanus Technologies
    evaluates it.
  • When conducting security assessments for thick
  • client applications, we look at best practices
    for authorization and authentication as well as
    data storage and communication pathways. To
    assess your application, we use manual and
    automated pen-testing procedures using paid,
    free, and open-source cybersecurity.
  • We at Elanus Technologies specialize in thick
    client application security, including
  • Static Analysis To find potential flaws and
  • vulnerabilities in the applications source code

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  • without actually running it, our professionals
    use cutting-edge methods.
  • Dynamic analysis To find any flaws or
    weaknesses in the functionality of the
    application, our specialists run the application
    and examine its behavior while it operates.
  • Penetration testing During this process, we
    mimic a real-world assault on the application
  • in order to find and exploit vulnerabilities and
    provide a comprehensive evaluation of its
    security posture.
  • Review of Configuration Our team of specialists
    examines the configuration of the application
    and suggests modifications to
  • increase the applications general security.
  • Network Traffic Analysis To discover and reduce
    potential security concerns, our
  • professionals track and examine network traffic.
    Security Code Review Our team of professionals
    examines the applications source code for
    security flaws, finding any potential problems
    and offering solutions.
  • Thick client application security describes the
    steps required to safeguard thick client
    applications, which are computer or device

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software applications that run on end users'
computers or other devices and demand a lot of
resources and processing power. These programs
frequently work with sensitive data and are open
to many forms of assault, such as malware,
phishing, and hacking. We have expertise of
conducting Thick Client Application Security
Testing on client-server applications adopting
proven methods and technology. Get in touch with
us for more insights. https//blogs.elanustechnolo
gies.com/thick- client-vapt-2/
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