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RMET6053 Research Methods
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RMET6053 Research Methods
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Course Code: RMET6053
University: Greenwich School Of Management
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Country: United Kingdom
Question:
Why does the CVE-2017-0144 vulnerability occur.How is CVE-2017-0144 leveraged to perform the EternalBlue exploit? Prevention measures that can be taken to reduce/eliminate future events?
Answer:
This paper highlights the reasons behind the occurrence of CVE-2017-0144 vulnerability in the Common Vulnerability and Exposure (CVE) catalogue. The following paragraphs describe the role of CVE-2017-0144 in the EternalBlue exploit. The measures that can be taken to prevent these attacks in the future are also described in the following paragraphs.
Common Vulnerability and Exposure is a catalogue of several known security threats that are divided into two categories- vulnerability and exposure. The vulnerability is any mistake in the software code that allows an attacker to access the entire system or network directly. However, exposure means indirect access to the system in case of any mistake in the code. CVE-2017-0144 is vulnerability in the Microsoft Server Message Block 1.0 (SMBv1) that is used by the ransom wares to infect systems or networks (Almukaynizi et al. 2017). It exploits the vulnerability of Server Message Block (SMB) that affects the Microsoft Windows System. The malicious code or software attempts to exploit the Server Message Block vulnerability when it is introduced into the Microsoft Window System. The file on the hard drive of the system is encrypted by a malicious software and it becomes inaccessible to the authorised user of the system. These ransom wares are spread through malicious attachments or other infected systems in the same Local Area Network (LAN).
EternalBlue is a term that describes the software vulnerability in the Operating System of Microsoft. The EternaBlue vulnerability is performed by exploiting the Server Message Block (SMB) of Microsoft version 1. SMB is a protocol for network file sharing that makes applications on the same network capable of reading and writing to the data or files on a computer. The EternalBlue vulnerability is denoted by CVE-2017-0144 in the catalogue of Common Vulnerability and Exposure. It occurs when the specially crafted codes or packets by the remote attackers are mishandled by the SMBv1 in the different versions of Microsoft Windows, as it allows the attackers to run arbitrary codes on the target systems or computers (Chaurasia 2018). The entire data or files of the systems that are connected to the same server can be accessed by unauthorised users if the hackers send the specially designed code to a Microsoft Server Message Block.
There are several measures that can be taken to reduce or eliminate the attacks in the future. The impact of latent vulnerabilities can be reduced if the internal vulnerability assessments are conducted to identify Microsoft Windows computer systems that are not patched with MS17-010 and this patch is applied on the affected systems. The users are required to update anti-malware software or endpoint protection tools to detect and remove ransom wares. The organisations are required to conduct security awareness plans and give them training about ransomware attacks. The users should not open attachments or links from unknown or suspected sources.
It can be concluded from the above discussion that the CVE-2017-0144 is the vulnerability in the Microsoft Server Message Block 1.0 (SMBv1) that is used by the hackers to infect the target systems or computers. It can be reduced or eliminated by patching the systems with MS17-010.
References:
Almukaynizi, M., Grimm, A., Nunes, E., Shakarian, J. and Shakarian, P., 2017. Predicting cyber threats through the dynamics of user connectivity in darkweb and deepweb forums. ACM Computational Social Science. ACM.
Chaurasia, R., 2018. Ransomware: The Cyber Extortionist. In Handbook of Research on Information and Cyber Security in the Fourth Industrial Revolutio
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