With readily accessible code, an attacker can modify your code within the browsers or aim at the server-side applications allowing them to circumvent front-end defenses.
The absence of compilation leaves the source code exposed, posing security threats. This however lets the applications be analyzed easily by static application security testing (SAST).
By analyzing the application’s source code, the SAST tools can easily detect any known threats and potential concerns with the applications.
- Cross-Site Scripting (XSS)
Cross-site scripting, often abbreviated as XSS, is a type of attack where someone implants harmful code into a reputable website or application. When the rogue code is executed in a user’s browser, it can access their data, like cookies or session IDs. With this information, the attacker can impersonate users or redirect them to harmful websites that are under the attacker’s control
Cross-Site Scripting Example
Imagine a scenario where a perpetrator discovers a flaw within an e-commerce site. The cyber intruders embed harmful code into specific product pages. Now when online buyers click on these manipulated listings, they are redirected to a false login page. If a user unknowingly logs in, the perpetrators gain access to their email and password information. The attackers can now pose as the users and login to the e-commerce site as impersonators, they can also gain sensitive details like credit card information. This example is based on a real attack that affected eBay in 2014.
- Cross-Site Request Forgery (CSRF):
This type of vulnerability enables attackers to coax users into executing actions they hadn’t planned. This attack provides a loophole where attackers bypass the same origin policy—a protective measure that prevents various websites from interfering with each other. For instance this could involve altering a victim’s account details such as email, or password credentials. With this action the perpetrator could easily gain full control of the user’s account and if the compromised user has high-level permissions in the application, the attacker might assume full control over all application functions.
- Poor Input Validation:
Poor input validation constitutes a security vulnerability, where an application neglects to thoroughly inspect or sanitize incoming data prior to processing. This flaw enables cyber intruders to introduce malicious input which can potentially compromise system integrity or acquire sensitive data. It’s one of the most pressing security issues that affect applications across different domains including web, desktop and mobile applications.
- Secure Coding Practices
Often referred to as secure programming, it involves crafting code in a high-level language. Its main aim is to thwart potential threats that might compromise data integrity or disrupt targeted systems. To fully adopt these practices, it’s important to establish a secure development ecosystem. Such a system should have a robust IT infrastructure that is supported by secure hardware and software and services that are offered by reputable providers.
- Have an SSL Certificate on your Website
To properly safeguard your website or team portal it is vital to include an SSL certificate to your site. An SSL is a certificate that acts as a shield that encrypts all information between servers and users. This helps in securing sensitive information. If your website or team portal lacks an SSL, there are several providers that you can get an SSL certificate from. You can get cheap wildcard SSL, multi-domain SSL, OV SSL, etc. as per your website’s requirements.
- Validate User Input
- Use of escape or Encode user input
If you are to safeguard your website from an XXS threat, you need to handle any incoming data through escaping or encoding techniques. This method alters potentially hazardous characters into safe representations. For instance, adding a backslash (\) before a quotation or replacing ‘<’ with the >’ in HTML. This prevents unwanted code execution. Using this tactic can prevent threats that cyber intruders pose on online websites and applications.