XSS attacks rely on insecure or compromised websites to hijack a session. When the victim logs in, it associates the session key to the victim, allowing the hacker to use this session key to hijack the session. A hacker will provide their victim with a session key by linking the victim to a valid login form on a trustworthy site but with their own session key injected. This is another attack that relies on phishing. These attacks generally occur on insecure Wi-Fi hotspots so the attacker can see what the victim is doing publicly. An attacker will use a packet sniffer to see what the victim is doing online, and can intercept the cookie as when it is sent to a website’s server for verification. Side jacking relies on insecure channels and user input to make an attack. This type of attack is very popular, and is now seeing a resurgence as it becomes harder for hackers to directly access a victim’s account. Once downloaded, the malware will steal the victim’s session cookie and transfer it back to the hacker. This attack usually relies on phishing techniques to trick victims into clicking dangerous links or downloading malware on their computer. This type of attack uses malware to steal cookies from a user’s browser. Below is a list of types of application level (HTTP) session hijacking attacks. There is another type of session hijacking, known as TCP (Transfer Control Protocol) or network level session hijacking, however this type does not involve cookie theft, instead targeting information as it is transferred between the user and the website’s server. Session hijacking that occurs as a result of a stolen session cookie is most common and is described as application level or HTTP (Hypertext Transfer Protocol) session hijack. ![]() For organisations with single sign-on systems, a stolen session ID could give a hacker access to multiple password-protected applications within the organisation’s network. A stolen session ID could also be used to access the restricted data a business may keep on the company network, which can lead to data breaches or ransomware attacks. Say, for example, the cookie for your online banking application is stolen, a hacker could transfer money from your bank account without even having to bypass the security checks put in place by the bank app. ![]() With a session hijack, a hacker can pretend to be you on a website without even having to hack into your account. Ramifications of a Stolen SessionĪ stolen session could have consequences as dire as a stolen ID, depending on which website or web service the attacker targets. With session cookies being created for every site every time you log in, a hacker knows when and where to set their sights. ![]() Without session cookies, you would have to authenticate yourself every time you do something on a site.īecause session cookies are everywhere for good reason, they also make prime targets for hackers. This session cookie makes it easy for a website to know it is still you, and makes the web browsing experience much more convenient and hassle-free. A session cookie is created on a website’s server when you log in, and is deleted when you log out. Simply, a session is the way a website tracks you as you move between pages and interact with the website. Nevertheless, it is important to understand the risks that a hijacked session poses, as well as how they can be mitigated, should you find yourself in an outdated or insecure part of the net. Session hijacking is fairly uncommon nowadays, as online security has increased dramatically over the past decade. ![]() If your personal session ID finds its way into the hands of a hacker, they can masquerade as you on a website. Every website and web service identifies a user by their own unique session ID. When you log in to a service online, you start a session.
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