Collected research
Bypassing of web filters by using ASCII
Kurt Huwig's iKu advisory on setting the high bit of ASCII characters. Internet Explorer 7 strips the eighth bit and renders the text as ordinary letters, while virus scanners and content filters read the high-bit bytes as something else entirely, so a page passes inspection and still displays the intended content to the reader.
Record
- Researcher
- Kurt Huwig
- Published by
- securityfocus.com
- Topic
- Other
In the archive
Tags
This page is the archive's own catalogue record. The research is the work of Kurt Huwig, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on .