National Cyber Awareness System

Vulnerability Summary for CVE-2008-4930

Overview

MyBB (aka MyBulletinBoard) 1.4.2 does not properly handle an uploaded file with a nonstandard file type that contains HTML sequences, which allows remote attackers to cause that file to be processed as HTML by Internet Explorer's content inspection, aka "Incomplete protection against MIME-sniffing." NOTE: this could be leveraged for XSS and other attacks.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: MLIST

Name: [oss-security] 20081101 CVE request (Fwd: MyBB 1.4.2: Multiple Vulnerabilties)

Hyperlink:http://www.openwall.com/lists/oss-security/2008/11/01/2

External Source: FULLDISC

Name: 20081027 MyBB 1.4.2: Multiple Vulnerabilties

Hyperlink:http://archives.neohapsis.com/archives/fulldisclosure/2008-10/0472.html

External Source: BUGTRAQ

Name: 20081027 MyBB 1.4.2: Multiple Vulnerabilties

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2008-10/0203.html