Browser bugs vs. attacks on same origin policy
Summary: PortSwigger researcher Dafydd Stuttard frames a debate over whether browser bugs or attacks on the same origin policy deserve more attention, noting that browsers are full of zero-days in image and media processing and in plug-ins like ActiveX controls, while JSON hijacking, DNS rebinding, and logic flaws drive active same-origin-policy research. He argues that aside from a narrow subset of browser bugs, no application-side defenses can stop a compromised browser, since arbitrary machine-level code execution gives an attacker full control of that user's interaction with any web application.
Why it matters: The source states plainly that once an attacker runs machine-level code in a user's browser, they own that user's interaction with any web application - so application defenses alone cannot close that gap.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
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