Website vulnerability is the reason why your website keeps being hacked.
You must have heard of the great many consequences of having a hacked website by now. On average, a website taken down by hackers costs a business $7,900 every minute. It is therefore a must for any business owners to know what to do when their website is hacked.
We, as security engineers ourselves, want to equip you with more than that. The following infographic is our effort in giving you the most basics of website vulnerability – the fundamental cause of website hacks.
(Text outline can be found below)
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Website vulnerability for beginners – CyStack
Website vulnerabilities are weaknesses present in the design and configuration of the system that can arise in either the developing or operating process.
How they work
Hackers use automated scanners to crawl all over the Internet for vulnerable websites and websites on popular platforms like WordPress or Joomla with common and publicized vulnerabilities.
Hackers exploit these to perform malicious acts such as installing malwares and steal data.
Most common website vulnerabilities
This vulnerability occurs when a value from the client’s request is used within a SQL query without prior sanitisation.
This could allow cyber-criminals to execute arbitrary SQL code and steal data or use additional functionalities of the database server to take control of more server components.
Local file inclusion
Web applications occasionally use parameter values to store the location of files. For example, the actual file path for error pages is often stored in a parameter value. Example: http://example.com/error.php?page=404.php.
The vulnerability occurs when the parameter value can be substituted with the path of another resource on the same server, effectively allowing the displaying of arbitrary, and possibly restricted/sensitive, files.
Cross Site Scripting (XSS)
Cross Site Scripting (XSS) allows clients to inject arbitrary scripting code into a request and have the server return the script to the client in the response. This occurs because the application is taking untrusted data (in this example, from the client) and reusing it without performing any validation or encoding.
Server-Side Template Injection
Template engines are widely used by web applications to present dynamic data via web pages and emails. This vulnerability occurs when the developer unsafely embed user input in templates. Unlike XSS, Template Injection can be used to directly attack web servers’ internals and often obtain Remote Code Execution (RCE), turning every vulnerable application into a potential pivot point.
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