What Is Credential Stuffing?
Here we can see, "What Is Credential Stuffing?" What Is Credential Stuffing? Credential stuffing may be a cyberattack method during which attackers use list

What Is Credential Stuffing?

Here we can see, “What Is Credential Stuffing?”

Credential stuffing may be a cyberattack method during which attackers use lists of compromised user credentials to breach a system. The attack uses bots for automation and scale and is predicated on the idea that many users reuse usernames and passwords across multiple services. Statistics show that about 0.1% of breached credentials attempted on another service will end in a successful login.

Credential stuffing may be a rising threat vector for 2 main reasons:

Attacks against online services are common, and criminals often exploit security flaws in systems to accumulate databases of usernames and passwords. Databases of stolen login credentials are often sold online on the dark web, with criminals paying in Bitcoin for the privilege of accessing the database.

Let’s say you had an account on the Avast forum, which was breached back in 2014. That account was breached, and criminals may have your username and password on the Avast forum. Avast contacted you and had you modify your forum password, so what’s the problem?

Unfortunately, the matter is that a lot of people reuse equivalent passwords on different websites. Let’s say your Avast forum login details were “[email protected]” and “AmazingPassword.” If you log into other websites with an equivalent username (your email address) and password, any criminal who acquires your leaked passwords can access those other accounts.

Here may be a typical process followed by an attacker during a large-scale credential stuffing attack. The attacker:

Protecting yourself from credential stuffing is pretty simple and involves following equivalent password security practices security experts have been recommending for years. There’s no magic solution—just good password hygiene. Here’s the advice:

While individuals got to take responsibility for securing their accounts, online services have some ways to guard against credential-stuffing attacks.

Poor password practices—and, to be fair, poorly secured online systems that are often too easy to compromise—make credential stuffing a significant danger to online account security. It’s no wonder many companies within the tech industry want to create a safer world without passwords.

The following measures can assist you in protecting your website from credential stuffing attacks.

Requiring users to authenticate with something they need, additionally to something they know, is that the best defense against credential stuffing. Attacker bots won’t be ready to provide a physical authentication method, like a mobile or access token. In many cases, it’s not feasible to need multi-factor authentication for a whole user base. It is often combined with other techniques; for instance, MFA is often applied only with device fingerprinting.

CAPTCHA, which needs users to act to prove they’re human, can reduce the effectiveness of credential stuffing. However, hackers can easily bypass CAPTCHA by using headless browsers. Like MFA, CAPTCHA is often combined with other methods and applied only in specific scenarios.

You can use JavaScript to gather information about user devices and make a “fingerprint” for every incoming session. The fingerprint may be a combination of parameters like OS, language, browser, time zone, user agent, etc. If an equivalent combination of parameters is logged in several times in sequence, it’s likely a brute force or credential stuffing attack.

If you employ a strict fingerprint with multiple parameters, you’ll enforce more severe measures, like banning the IP. To capture more attacks, you’ll use a mixture of 2-3 common parameters and enforce less severe measures, sort of a temporary ban. a standard fingerprint combination is an OS + Geolocation + Language.

Attackers will typically have a limited pool of IP addresses, so another effective defense is to dam or sandbox IPs that plan to log into multiple accounts. You’ll monitor the last several IPs that were wont to log into a selected account and compare them to the suspected bad IP to scale back false positives.

It is easy to spot traffic originating from Amazon Web Services or other commercial data centers. This traffic is nearly certainly bot traffic and will be treated far more carefully than regular user traffic. Apply strict rate limits and block or ban IPs with suspicious behavior.

Headless browsers like PhantomJS are often easily identified by the JavaScript calls they use. Block access to headless browsers because they’re not legitimate users and almost certainly indicate suspicious behavior.

Credential stuffing relies on the reuse of equivalent usernames or account IDs across services. This is often far more likely to happen if the ID is an email address. By preventing users from using their email address as an account ID, you dramatically reduce the prospect of them reusing an equivalent user/password pair on another site.

Credential stuffing is analogous to a brute force attack, but there are several important differences:

In a modern web application with basic security measures in situ, brute force attacks are likely to fail, while credential stuffing attacks can succeed. The rationale is that, albeit you enforce strong passwords, users may share that password across services, resulting in a compromise.

I hope you found this guide useful. If you’ve got any questions or comments, don’t hesitate to use the shape below. 

Credential stuffing is that the automated injection of stolen username and password pairs (“credentials”) into website login forms to gain access to user accounts fraudulently. … Credential Stuffing typically refers to specifically using known (breached) username/password pairs against other websites.

Credential stuffing may be a sort of cyber-attack where a taken account’s credentials, usually containing the lists of usernames and email ID alongside the matching passwords, are stolen then wont to gain illegal access to real user accounts over a large-scale automated login.

A network intrusion refers to any unauthorized activity on a digital network. Network intrusions often involve stealing valuable network resources and nearly always jeopardize the safety of networks and/or their data.

Ongoing credential stuffing attack – how to tackle? from ciso

Credential Stuffing from HackingTechniques


Disqus Conversations