DNS pinning and web proxies
Summary: PortSwigger Research notes that DNS-based attacks against browsers have drawn renewed attention after defects were found in browser-based DNS pinning defences, but the same attacks also apply to web proxies. Because DNS look-ups happen on the proxy rather than the browser, browser DNS pinning does not protect proxy users, and the paper argues attacks against web proxies may be at least as significant a threat as those against browsers.
Key Takeaway: The most significant opportunities for these attacks are against web users on internal corporate networks, as a means of gaining unauthorised access to sensitive information and web applications on internal intranets - and a large proportion of those users reach the Internet through a proxy server.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
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