The action of providing storage space for a website connected to the Internet is known as web hosting. Web servers are connected to the back end to run various applications. Server hackers hack the webserver by finding the software, data system, operating system, or network vulnerability. A web server’s exposure pile is shown below.
Customer(Business logical flaws) Web application(Technical flaws) Third-party applications( Commercial) Web server (Apache) Database (MySQL, DB2) Applications (Open Source) Operating systems ( Linux, Windows) Networking( Routers)
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Web server hacking types:
Denial-of-Service attack:
A Denial-of-Service (DoS) attack attempts to halt a machine or network, making it unavailable to the authorized user. DoS attacks merely take advantage of flaws in the target computer system or network, causing it to explode. In these attacks, data is received, which takes advantage of vulnerabilities in the target, causing the system to crash or become significantly destabilized, making it impossible to access or utilize.
DoS attacks frequently target high-profile corporations such as finance, business, media organizations, and government and trade organizations. But this type of attack won’t result in the loss of sensitive information or other valuables; rather, it will lose a lot of time and money to cope with.
The Denial of service is classified into two types:
- Flooding services
- Crashing services – it is further classified into three
- Buffer overflow attacks
- Internet Control Message Protocol Flood
- Synchronize flood
Website Defacement:
Structured query language injection attacks hack the website when an attacker discovers that input areas haven’t been adequately sanitized. Hackers can use SQL strings to create a malicious request, which the web browser can direct. He may place suspicious data in the database, causing the website to display irrelevant information when requested—this results in a defaced website.
The following are some of the most common reasons for defacement attacks:
- Malicious access
- Structured query language injection
- Cross-site scripting
- Domain Name Server hijacking
- Attack with malware
Directory Traversal:
Hackers find the vulnerability in the computer and breach the system to have access to complete detail of the restricted files and data. If possible, hackers may access the webroot directory, generate operating system commands, and steal confidential data.
Directory traversal is a Hypertext Transfer Protocol hack that allows hackers to access restricted folders and files without permission. Directory traversal attacks take advantage of flaws in software to get accessibility to files and data outside of the webroot file.
Misconfiguration attacks:
Configuration defects that may occur in software or subsystems are known as misconfiguration vulnerabilities. For example, the webserver software may have default user profiles that a computer hacker could use to access the system or include a recognized set of predefined configuration data and files that a malicious user could exploit.
For instance, the following types of attacks could exploit misconfiguration vulnerabilities:
- Insertion of code
- Lawlessness stuffing
- Overflowing buffer
- Executing commands
- Browsing to drive data
- Cross-site scripting (XSS)
Phishing Attack:
This type of hacker redirects the user to the illegal website by sending the malicious link through email, which looks authorized. But when the user clicks the links, it redirects the user to a malicious site to steal the user’s sensitive data.
Email is the most used method of communication. The purpose is to steal personal information such as credit cards, usernames, and passwords or attack the perpetrator’s computer with malware.
There are four types of phishing:
- Spear Phishing
- Whaling
- Vishing
- Email Phishing
Information Gathering Methodology:
- From the Internet
- Information from the WHOIS database
- Information about Netcraft
- Active reconnaissance
- Nmap is used to scan networks.
- Using Httrack to replicate a website.
Vulnerability Scanning:
Automated technologies exist to scan a website and the applications that run on it. The results could reveal several risks and vulnerabilities on the target web server, which could then be exploited using techniques or manually.
Vulnerability Scanning Tools:
- SolarWinds Network Configuration Manager (NCM)
- ManageEngine Vulnerability Manager Plus
- Paessler PRTG
- Rapid7 Nexpose
- Acunetix
- BeyondTrust Network Security Scanner
- Probely and TripWire IP 360
Attacks on passwords:
- Making a guess passwords
- Continuous accessing to unlock the password
- Dictionary attack
Preventative step:
- Regularly update and patch web servers
- Do not use the default settings
- Securely store file systems.
- Examine the web server’s apps for any vulnerabilities.
- Use updated identities in your Integrated Data Storage and firewall.
- Disable interfaces and services that aren’t needed.
- Secure technologies should be used.
- Remove default accounts and adhere to a restrictive security policy.
- Install anti-virus software and keep it up to date.
- Operating systems and software should be updated.
Now, you would have understood what web server attacks are and the types of server hacking. So, to have comprehensive knowledge of hacking and malware hacking tools, you can join Ethical Hacking Course in Chennai for a better understanding of hacking techniques
To have a comprehensive understanding of Denial-of-Service attacks, Phishing attacks, Misconfiguration attacks, types of Vulnerability Scanning Tools, Countermeasures, and Information Gathering Methodology. So, to learn more about hacking, you can join the Ethical Hacking Course to impart the necessary knowledge on cybersecurity.