Bypassing character blocklists with unicode overflows
Unicode codepoint truncation - also called a Unicode overflow attack - happens when a server tries to store a Unicode character in a single byte.
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Unicode codepoint truncation - also called a Unicode overflow attack - happens when a server tries to store a Unicode character in a single byte.
In this post, I will introduce the "cookie sandwich" technique which lets you bypass the HttpOnly flag on certain servers.
Nominations are now open for the top 10 new web hacking techniques of 2024!
HTTP cookies often control critical website features, but their long and convoluted history exposes them to parser discrepancy vulnerabilities.
The strength of our URL Validation Bypass Cheat Sheet lies in the contributions from the web security community, and today’s update is no exception.
Last year Johan Carlsson discovered you could conceal payloads inside the credentials part of the URL .
At Mozilla, browser security is a critical mission, and part of that mission involves responding swiftly to new threats. Tuesday, around 8 AM Eastern time, w...
URL validation bypasses are the root cause of numerous vulnerabilities including many instances of SSRF, CORS misconfiguration, and open redirection.
Through the years, we have seen many attacks exploiting web caches to hijack sensitive information or store malicious payloads.
Some websites parse email addresses to extract the domain and infer which organisation the owner belongs to. This pattern makes email-address parser discrepa...
Websites are riddled with timing oracles eager to divulge their innermost secrets. It's time we started listening to them.
Imagine the CEO of a random company receives an email containing a PDF invoice file. In Safari and MacOS Preview, the total price displayed is £399.
Major U.S.
Ignoring a real breach notification invites risk, but falling for a bogus one could be even worse. Stop reacting on autopilot.
Threat actors are exploiting three recently disclosed Windows security vulnerabilities in attacks aimed at gaining SYSTEM or elevated administrator permissio...
A ransomware attack on Cookeville Regional Medical Center hospital (Tennessee) exposed data of 337,000 people after hackers stole 500GB of sensitive informat...
Cybernews reports that leading global luxury apparel retail firms Lacoste, Ralph Lauren, Canada Goose, and Carter's were claimed to have had their "supply ch...
Tennessee's CRMC notifies over 337,000 patients of Rhysida ransomware breach exposing sensitive data
Cookeville Regional Medical Center was targeted last year by the Rhysida ransomware group, which stole 500GB of data. The post Data Breach at Tennessee Hospi...
The ShinyHunters extortion group has leaked data from 13.5 million McGraw Hill user accounts, stolen after breaching the company's Salesforce environment ear...
A hacking group claims to have broken into the flood defence system protecting Venice's Piazza San Marco - and is offering to sell access to whoever wants it...
Major U.S.
Hacking group ShinyHunters has listed the National Railroad Passenger Corporation on its data leak site, claiming to have stolen 9.4 million records containi...
BleepingComputer reports that McGraw-Hill has disclosed that the limited set of data exposed during a breach caused by a Salesforce misconfiguration was non-...