AUTOMATED PENETRATION TESTING: AN OVERVIEW

Dhinaharan Nagamalai et al. (Eds) : NATL, CSEA, DMDBS, Fuzzy, ITCON, NSEC, COMIT - 2018
pp. 121–129, 2018. © CS & IT-CSCP 2018 DOI : 10.5121/csit.2018.80610
AUTOMATED PENETRATION TESTING:
AN OVERVIEW
Farah Abu-Dabaseh and Esraa Alshammari
Department of Computer Science
Princess Sumaya University for Technology, Amman, Jordan
ABSTRACT
The using of information technology resources is rapidly increasing in organizations,
businesses, and even governments, that led to arise various attacks, and vulnerabilities in the
field. All resources make it a must to do frequently a penetration test (PT) for the environment
and see what can the attacker gain and what is the current environment's vulnerabilities. This
paper reviews some of the automated penetration testing techniques and presents its
enhancement over the traditional manual approaches. To the best of our knowledge, it is the
first research that takes into consideration the concept of penetration testing and the standards
in the area.This research tackles the comparison between the manual and automated
penetration testing, the main tools used in penetration testing. Additionally, compares between
some methodologies used to build an automated penetration testing platform.
KEYWORDS
Penetration test, Automation, Exploitation, Ethical hacker, Penetration testing standards.
1. INTRODUCTION
Penetration testing is used to check the exploitations and the vulnerability of the organization's
system and help the developers to build a protected system that meets the needs. It's very
important to any organization and company to protect their data and information from outside
attackers and keep monitoring to the prioritize the severity of the security issues. Determining the
priorities can help the developers to determine the needed devices in the allocation of the budget
for security issues. Additionally, can be used to find the financial loss expected and risks if the
attackers achieve their goals and exploited the system and how to mitigate that. The data
generated from the test considered confidential and private data because it shows approximately
all the holes in the system and how they could be exploited. [1]
PT can be done by attacking the system similar to the action of the outside attackers and find out
what can be obtained [2]. The attack might not be as easy as exploiting one vulnerability, many
vulnerabilities may be used to achieve the goal by making a sequence of attack chain (Multi-step
attack) [3]. It’s also considered as a risk assessment and can be used to check the network safety.
When penetration test is done, the roles of engagement for that test should be set also, to set the
goals and the methodology of the test.

122 Computer Science & Information Technology (CS & IT)
Penetration tests companies can be classified into three different types: gray hat, black hat, and
white hat. In the white hat, the tester is an ethical hacker that respects the rules of the organization
and the employees can help to perform the testing. While the black hat is mainly used to find how
the employees interact with the undesired attack, in this approach the administrators are only the
ones who know the test is underway. Moreover, we can do a Gray hat which is a combined
approach to the previous types into a custom test plan [4].
Penetration testing should be considered as a standard frequent process within the security
roadmap. Traditionally, the organizations used to perform the penetration testing only when they
have a product release or a major upgrade. [5]
However, it’s suitable to perform the test in these situations:
• New installed software
• Applied system upgrades
• User policy modification
• Applied Security patches
• New infrastructure is added
Although it's important to have a penetration testing in the organization, it’s hard to implement
too. Since it should include a security expert with the capability to do such a complex job. That
could be an overhead on the organization and could waste time and money without the desired
result in the case that the security team wasn’t as professional as they must. So, the automated
approach has seen the light; done by an expert security team in the field.
The contribution of this research will consider the standards of penetration testing, the tools used
for each phase in the penetration test, the comparison between the automated and manual
approaches and the comparison between some of the current approaches for the automated
penetration test.
The rest of this research is as follows: in section two the Penetration testing standards will
presents. While the comparison between manual and automated techniques in penetration testing
are provided in section three. Section four shows an overview of the current automated
penetration testing. Finally, the conclusion and future works are presented in section five.
2. PENTRATON TESTING STANDARDS
Standards for penetration testing aimed to provide a basic outline and definition of the penetration
testing. Also to give an outline of the steps used for it, many standards are out there having
various pros and cons [6]. Choosing one of them should be based on the goal of having the test.
There are currently various standards that could be followed, such as ISAAF (Information
Systems Security Assessment Framework), the OSSTMM (Open-Source Security Testing
Methodology Manual), the NIST SP 800-115, and the PTES (the Penetration Testing Execution
Standard), the OISSG (Open Information Systems Security Group) [6].

Computer Science & Information Technology (CS & IT) 123
OSSTMM v3 covers the whole parts of the penetration test and have three classes of attacks:
Communications Security, Spectrum Security and Physical Security. This standard was published
in 2010 and is very mature since the first version which was released in 2000.[6]
On the other hand NIST (SP800-115) standard provides guidelines for planning and conducting
information security testing and assessments. Additionally, to analyze the findings and
developing mitigation strategies. It’s not purposed to give an overall testing or assessment
program but to give an overview of the key elements in both security testing and assessment with
assurance on specific techniques showing their benefits and limitations. in addition to that, it also
gives recommendations and reports for their use.
On the other hand NIST (SP800-115) standard provides guidelines for planning and conducting
information security testing and assessments. Additionally, to analyze the findings and
developing mitigation strategies. It’s not purposed to give an overall testing or assessment
program but to give an overview of the key elements in both security testing and assessment with
assurance on specific techniques showing their benefits and limitations. in addition to that, it also
gives recommendations and reports for their use.
As (SP800-115) NIST standard, the penetration testing process can be divided into the following
four processes shown in (Figure.1) [7]:
Figure.1: The Phases of Penetration Testing (NIST) Standard
The third standard in penetration testing is ISSAF methodology which aimed to help the
administrator to evaluate your application, system and network controls. It consists of three
phases and nine steps [8]. As shown in Figure 2:

Figure 2: The Phases of Penetration Testing (ISSAF) Standard
The final standard to be considered is the PTES, the Penetration Testing Execution Standard is a
completely new standard that started to be developed in 2010. One of its main features is that the
industry experts in specific areas have developed it [9]. the steps covered in the PTES are shown
in (Figure.3) [6].

Figure 3: Steps of Penetration Testing Execution Standard
3. MANUAL VS. AUTOMATED PENETRATION TESTING
Until recently, Penetration testing has been restricted to advanced security specialist that having
many years of relevant experience to do the complex manual process. but in fact, the proficient
penetration testers are not highly available and the manual process is time and money consuming.
A team of experts can gather to build a professional automated tool that can be a combination of
experience of the expert penetration testers. so that the non-expert users can substitute the
penetration team with the automated tools to get an inclusive view of the security situation on the
organization's system.
The table below, summaries the comparison between manual and automated penetration testing:
Table 1: Comparison of manual and automated testing[1] [10]
Automated Manual
Testing process
Fast, standard process; Easily repeatable tests; Manual, non-standard process;
capital intensive; High cost of
customization;
Vulnerability
/attack Database
management
Attack database is maintained and updated
attack codes are written for a variety of
platforms;
Maintenance of database is
manual; Need o rely on public
database; Need re-write attack
code for functioning across
different platforms;

Exploit
Development and
Management
Product vendor develops and maintains all
exploits. Exploits are continually updated for
maximum effectiveness. Exploits are
professionally developed, thoroughly tested,
and safe to run. Exploits are written and
optimized for a variety of platforms and attack
vectors
Developing and maintaining an
exploit database is time-
consuming and requires
significant expertise. Public
exploits are suspect and can be
unsafe to run. Re-writing and
porting code is necessary for
cross platform functionality.
Reporting
Reports are automated and customized Requires collecting the data
manually
Cleanup Automated testing products offer clean-u
solutions
The tester has to manually undo
the changes to the system every
time vulnerabilities found
Network
modification
System remain unchanged. Often results in numerous
system modification
Logging/
Auditing
Automatically records a detailed record of all
activity.
Slow, cumbersome, often
inaccurate process
Training Training for automated tools is easier than
manual testing
Testers need to learn non-
standard ways of testing ;
training can be customized and
is time consuming
4. CURRENT AUTOMATED PENETRATON TESTING OVERVIEW
Recently, penetration testing has been used to find the vulnerabilities exists in the system to know
how to mitigate them. the test usually simulates various types of attacks on the target system. by
this test, the administrator will have an organized and controlled way to identify the security
shortcomings. The resources and time needed for comprehensive testing will make penetration
testing price intensive. Consequently, such tests are sometimes solely performed throughout
necessary milestones. during [5] project have been automated the penetration testing method for
many protocol-based attacks. their automated penetration testing, application covers many attacks
which support hypertext transfer protocol (HTTP), SIP and TCP/IP. the target of this work is to
supply a quick, reliable and automated testing tool, that is additionally easier to use than existing
tools.
In research [6], The purpose behind this research was to contribute a tool to the community that
may be won’t to improve the potency of current penetration testing companies, so that they will
expand coverage of the testing to grant customers a additional in depth read of their current
security ways and wherever they have to enhance. the most purpose behind this tool is to prove
that automated testing isn't a hindrance to the security community however is very a tool that
should be leveraged throughout testing.

In the other hand project [11] was developed to facilitate the vulnerability analysis and
penetration testing in Indian banks. It’s a big threat to the bank to do the penetration testing an
vulnerability assessment using third party tools. this approach is fully automated and interactive
so that it doesn’t require a high experience and technical sills from the users. the tool has been
developed using python libraries and without any third party software’s, it’s a reliable option to
find the vulnerabilities associated to the applications and services running on the target system.
After that, the tool produces a vulnerability list with the severity level associated to each
vulnerability. it also used to detect the SQLI vulnerability on the target system.
In [3], the known mathematical model of partially observable Markov decision processes
(POMDP) have been used to tackle the problem of the research. the solution proposed
automatically produce generation of multi-step plans for a penetration test, the plans are robust to
uncertainty during execution. this work focuses on remote test with uncertainty in both
information gathering and exploit actions, by developing probabilistic metrics to find the
effective probability that an exploit can be executed and the overall probability that the attacker
can successfully execute it a summary for the comparison between these approaches can be found
in table 2. Paper [5] will be considered as A , paper [6] will be considered as B while paper [11]
will be C and paper [3] will be D.
Table 2: Comparison between current methodologies of automated penetration testing
Target Tools Phases Method of
implementation
Aim
A HTTP / TCP/IP
and session
initiation
protocol (SIP)
attacks
Hping3 to
perform TCP
DOS attack
Input
parameters
based on the
web interface
then routing the
params to
appropriate
module then
finally
implement the
attack
The application was
developed using PHP
and the attack scripts
is implemented using
JAVA and shell
scripting , the design
implemented on Linux
Perform
automated
easy to use
with web
interface,
penetration
testing toolkit
B All protocols and
services
Harvester,
Metagoofil,
NMAP, ZAP,
Metasploit,
Nessus
(pynessus)
Insert
arguments , run
scanning tools
then parse the
output from
these tools and
finally exploit
with Metasploit
and start the
manual process
if needed
Uses script to link the
tools to each other’s
and to parse the output
from them.
Optimizing the
process by
automating the
running of any
tool that is
used
commonly on
the penetration
test
C Database No third party
tools has been
used here
Information
gathering,
scanning, then
Developed using core
python
packages/Libraries and
Find user
credentials ,
Email ID and

vulnerability
detection and
mapping and in
the final step
Exploitation
and report
generation is
done
no third party software
has been used
other details
from the
database using
SQLI
D All services and
protocols
Exploiting tools Information
gathering then
vulnerability
assessment and
the final step is
penetration test
planning
Used partially
observable marker
decision process (
POMDPs) and
demonstrate the use of
an effective
approximation
algorithm that satisfies
the performance
requirement of
penetration testing
planning , then a script
is used to link the
components
Find a way to
do remote
penetration
testing with
uncertainty of
tools used.
5. CONCLUSION AND FUTURE WORK
Many organizations need penetration testing to discover the most vulnerabilities that have in their
system. To apply the penetration test, there are two approaches that the organizations used to
discover the bugs, one is automated penetration test and the other is manual penetration test. The
automated pen test is the easiest way to figure out the whole vulnerabilities in the system by
implementing a tool that has some patterns to find the vulnerabilities. While the manual test is the
way to discover the vulnerabilities manually through analyzing the system and distinguish the
abnormal behavior.
Hence, this paper has been done to shows the importance of the penetration testing as well as the
importance of automating this process. Additionally, some standards in the penetration testing
have been highlighted to help the researchers find the suitable standards to use. Even more, the
comparison between the manual and automated penetration testing has been provided in term of
the testing process, vulnerability and attack database management, exploit development and
management reporting, clean up, network modification, logging, and training. And the result
shows that the automated penetration testing is better than the manual penetration in all of the
above process, except finding the new or zero day exploits. So that many organizations may go
for the automated approach because it seems the better and cheaper way to maintain security in
the systems as most of the vulnerabilities that the attackers used to exploit the system are well
defined in the automated tools.
Although writing own exploits may be time-consuming as well as ineffective in terms of money.
But, the attackers can conceal their activity through their own scripts. Thus, the automated tools
still have limitations and vulnerabilities.

To the best of our knowledge, this research is a step forward to the other researchers who
interested in the automated penetration testing. The next step is to study the impact of the
penetration testing toward the hunting threats. Even more, to study the applicability of building
automated tool that takes into consideration the general limitations in the current automated tools.
REFERENCES
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[2] Xue Qiu, Shuguang Wang, Qiong Jia, Chunhe Xia and Qingxin Xia, "An automated method of
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[9] Pentest-standard.org. (2018). The Penetration Testing Execution Standard. [online] Available at:
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AUTOMATED PENETRATION TESTING: AN OVERVIEW