(OpenBSD Issues Fix for httpd) IBM HTTP Server (IHS) Lack of Input Validation in Expect Header May Permit Cross-Site Scripting Attacks
|
|
SecurityTracker Alert ID: 1017011 |
|
SecurityTracker URL: http://securitytracker.com/id/1017011
|
|
CVE Reference:
CVE-2006-3918
(Links to External Site)
|
Updated: Aug 18 2007
|
Original Entry Date: Oct 8 2006
|
Impact:
Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
|
Fix Available: Yes Vendor Confirmed: Yes
|
Version(s): prior to 2.0.47.1, also 1.3.x
|
Description:
A vulnerability was reported in IBM HTTP Server (IHS). A remote user can conduct cross-site scripting attacks. OpenBSD httpd is affected.
The server does not properly filter HTML code from user-supplied input in the HTTP Expect header before displaying the input. A remote user can creat a specially crafted value that, when submitted by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the IBM HTTP Server (IHS) software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
The Apache web server is also affected.
|
Impact:
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the IBM HTTP Server (IHS) software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
|
Solution:
OpenBSD has issued a fix for httpd.
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/017_httpd2.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/012_httpd2.patch
|
Vendor URL: www-1.ibm.com/support/docview.wss?uid=swg1PK24631 (Links to External Site)
|
Cause:
Input validation error
|
Underlying OS:
UNIX (OpenBSD)
|
|
Message History:
This archive entry is a follow-up to the message listed below.
|
Source Message Contents
|
Date: Sat, 7 Oct 2006 20:32:32 -0400
Subject: OpenBSD vulnerability
|
SECURITY FIX: October 7, 2006 All architectures
httpd(8) does not sanitize the Expect header from an HTTP request when it is reflected
back in an error message, which might allow cross-site scripting (XSS) style attacks.
CVE-2006-3918
A source code patch exists which remedies this problem.
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/017_httpd2.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/012_httpd2.patch
|
|
