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Last updated: 9/30/2014 10:06:18 AM

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Vulnerability Summary for CVE-2006-3227

Original release date: 06/26/2006
Last revised: 09/05/2008
Source: US-CERT/NIST

Overview

Interpretation conflict between Internet Explorer and other web browsers such as Mozilla, Opera, and Firefox might allow remote attackers to modify the visual presentation of web pages and possibly bypass protection mechanisms such as content filters via ASCII characters with the 8th bit set, which could be stripped by Internet Explorer to render legible text, but not when using other browsers. NOTE: there has been significant discussion about this issue, and as of 20060625, it is not clear where the responsibility for this issue lies, although it might be due to vagueness within the associated standards. NOTE: this might only be exploitable with certain encodings.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 2.6 (LOW) (AV:N/AC:H/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 4.9
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification

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External Source: BUGTRAQ
Name: 20060621 Re: Bypassing of web filters by using ASCII
External Source: OSVDB
Name: 28376
External Source: MISC
Name: http://ha.ckers.org/blog/20060621/us-ascii-xss-part-2
External Source: XF
Name: ie-ascii-encoded-web-filter-bypass(27288)
External Source: BUGTRAQ
Name: 20060621 Re: Bypassing of web filters by using ASCII
External Source: BUGTRAQ
Name: 20060626 Re: Bypassing of web filters by using ASCII
External Source: BUGTRAQ
Name: 20060626 RE: Bypassing of web filters by using ASCII
External Source: BUGTRAQ
Name: 20060621 Bypassing of web filters by using ASCII
External Source: MISC
Name: http://ha.ckers.org/blog/20060621/malformed-ascii-bypasses-filters/
External Source: BUGTRAQ
Name: 20060623 RE: Bypassing of web filters by using ASCII
External Source: BUGTRAQ
Name: 20060623 Re: Bypassing of web filters by using ASCII
External Source: BUGTRAQ
Name: 20060622 Re: Bypassing of web filters by using ASCII

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