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Bug 200738

Summary: CVE-2006-3918 Expect header XSS
Product: Red Hat Enterprise Linux 2.1 Reporter: Mark J. Cox <mjc>
Component: httpdAssignee: Joe Orton <jorton>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 2.1CC: tao
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: public=20060508,source=asf,impact=important
Fixed In Version: RHSA-2006-0618 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-08-08 19:41:30 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Mark J. Cox 2006-07-31 13:45:09 UTC 
+++ This bug was initially created as a clone of Bug #200732 +++

In May 2006 a reporter found a bug in Apache where an invalid Expect header sent
to the server (Apache 1.3.3 onwards) would be returned to the user in an error
message, unescaped.  This could allow a cross-site scripting attack only if a
victim can tricked into connecting to a site and sending such a carefully
crafted Expect header.  Whist browsers do not provide this functionality, it was
recently discovered that Flash allows you to make a connection with arbitrary
headers.  The attack mechanism is therefore:

1. User is tricked into visiting a malicious web site with a flash-enabled browser
2. Malicious web site uses a flash movie to make a connection to the target site
with custom Expect header
3. This results in cross-site scripting (attacker could steal your cookies from
the third party site, or inject content etc)

Patch:
http://svn.apache.org/viewcvs?rev=394965&view=rev [1.3]
Comment 3 Red Hat Bugzilla 2006-08-08 19:41:32 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2006-0618.html