184 lines
3.0 KiB
HTML
184 lines
3.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<HTML
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><HEAD
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><TITLE
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>Bugzilla</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
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REL="HOME"
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TITLE="The Bugzilla Guide - 3.4.2
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Release"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Bugzilla Security"
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HREF="security.html"><LINK
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REL="PREVIOUS"
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TITLE="Web server"
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HREF="security-webserver.html"><LINK
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REL="NEXT"
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TITLE="Using Bugzilla"
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HREF="using.html"></HEAD
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><BODY
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CLASS="section"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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ALINK="#0000FF"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>The Bugzilla Guide - 3.4.2
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Release</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="security-webserver.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 4. Bugzilla Security</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="using.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="section"
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><H1
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CLASS="section"
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><A
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NAME="security-bugzilla"
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>4.3. Bugzilla</A
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></H1
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><DIV
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CLASS="section"
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><H2
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CLASS="section"
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><A
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NAME="security-bugzilla-charset"
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>4.3.1. Prevent users injecting malicious Javascript</A
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></H2
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><P
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>If you installed Bugzilla version 2.22 or later from scratch,
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then the <EM
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>utf8</EM
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> parameter is switched on by default.
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This makes Bugzilla explicitly set the character encoding, following
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<A
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HREF="http://www.cert.org/tech_tips/malicious_code_mitigation.html#3"
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TARGET="_top"
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>a
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CERT advisory</A
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> recommending exactly this.
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The following therefore does not apply to you; just keep
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<EM
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>utf8</EM
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> turned on.
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</P
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><P
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>If you've upgraded from an older version, then it may be possible
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for a Bugzilla user to take advantage of character set encoding
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ambiguities to inject HTML into Bugzilla comments.
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This could include malicious scripts.
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This is because due to internationalization concerns, we are unable to
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turn the <EM
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>utf8</EM
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> parameter on by default for upgraded
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installations.
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Turning it on manually will prevent this problem.
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</P
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="security-webserver.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="using.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Web server</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="security.html"
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ACCESSKEY="U"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Using Bugzilla</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |