Everything you need to know about Cross-site Scripting and Sensitive Cookie Exposuresby Zill Davis Civil Lawyer
Cross-Site Scripting (XSS)
Some of these vulnerable vehicles are forums, message boards and web pages. These seem to be used quite widely to spread XSS. An attacker can exploit the vulnerabilities of XSS and make them work in tampering with data, stealing accounts and even the distribution of malware. XSS is a highly rated vulnerability as attackers can gain access to LocalStorage, SessionStorage as well as cookies.
Preventing XSS Attacks
Preventing XSS attacks is crucial for the security of the user and to do this, the developer needs to differentiate the untrusted data and the inputs from the user from within the active browser content. Some ways to do this are:
Validating the user’s input beforehand is advisable. This can be done by ensuring the input contains acceptable characters which are safe from XSS attacks.
2) Appropriate Frameworks
Frameworks with advanced packages contain XSS filters that are immune to XSS attacks. Using these frameworks would ensure safety against threats.
Sensitive Cookie Exposures
Server content can be accessed through client-side scripts, and these might include sensitive data such as session IDs. When session identifiers are exposed through URLs, error messages or logs, they open up the application to a number of vulnerabilities such as session fixation and session hijacking.
Preventing Sensitive Cookie Exposures Attacks
1) 1) Cookie accesses
Avoid unauthorized access to cookies by using HTTPS and HTTP-only cookies. This notifies the browser to prevent unauthorized cookie access through the DOM.
2) 2) User Authentication Requests
In order to secure user sessions, opt for per-requests instead of per-session identifiers. If and when the client requests privileged access, the current session can terminate immediately and the requester would need to re-authenticate.
3) 2) Content Security Policy
Defining the content security policy is important as it can allow the developer to define styles, fonts, frames, media, etc. Content security policy is a header and can be set using the Nginx configuration.
Created on Mar 9th 2022 23:14. Viewed 155 times.