A web server attack is any deliberate attempt by a bad actor to compromise the security of a web server. An attack on the web server will result from any vulnerability in the network, operating system, database, or applications.

1. Types of Web Server Attacks
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What are web server attacks?
A web server is a piece of program that distributes web content using the HTTP
protocol. A web server must host every website on the internet because it is the
backbone of the internet.

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A web server attack is any deliberate attempt by a bad actor to compromise the
security of a web server. An attack on the web server will result from any vulnerability
in the network, operating system, database, or applications.
Serious ramifications could include data tampering, theft, website vandalism, etc. All
of this could result in a company getting a negative reputation and customers losing
faith in it.
Most common types of web server attacks:
•SSH Brute-Force Attack: The password used to identify a legitimate user and give
access to the web server is frequently the foundation of a web server's authentication
system. By trying all possible SSH login passwords, an SSH brute-force attack is utilized
to acquire access. This kind of attack can be used to spread malicious files, drain a
server's resources, and go unnoticed.
•Denial of Service (DoS) or Distributed Denial of Service (DDoS) Attack: In
this attack, the web server is made to respond to a high number of request packets,
which causes it to slow down or crash resulting in a denial of service or access to
authorized users.
•Website Defacement: The hacker gains access and defaces the websites in this
kind of attack. For various reasons, such as to disgrace or defame the victim, an
attacker finds a way to change the website's files or contents without your consent.

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Directory Traversal: In this attack, the attacker can get access from the
application outside of the web root directory, which might allow them to run OS
commands, obtain sensitive data, or access restricted directories. Web pages are
stored in the root directory; however, the hacker focuses on directories that are
not in the root directory. On older servers with flaws and vulnerabilities, it
generally works well.
Phishing Attack: It is carried out by fooling the victim into clicking a malicious
link in an email. The user is forwarded to a fake website that is hosted on the
attacker's server using the link. The attackers can then use the victim's login
information to perform malicious actions on the genuine target website.
Cross-Site Scripting (XSS): A malicious code is injected into web applications
due to a security flaw. The victims run this code, which enables the attackers to
get around access controls and pose as users. The hacker will then have access to
data from web applications, such as cookies and session information. This kind of
attack is most likely to affect websites with scripting errors.
Session hijacking: It occurs when a web server uses a cookie to determine the
user's session. This attack is carried out automatically using sniffing software.

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Man-in-the-Middle (MITM) Attack: It enables attackers to eavesdrop on
the conversation between two servers in the MITM attack. To the victim, it
will seem like a typical information exchange is taking place, but the attacker
can covertly steal information by "middling" in the dialogue or data transfer.

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Final words:
In the modern internet era, we visit numerous websites for many daily tasks, and
obviously, no one ever wants to experience web server attacks. Therefore, you
can enroll in InfosecTrain's numerous cybersecurity courses like CEH, Web
Application Penetration Testing, and CompTIA PenTest+ if you want to learn how
to protect your web servers from attackers.

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