KDE Konqueror May Disclose URL-based Passwords to Remote Users Via the Referer Field
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SecurityTracker Alert ID: 1007326
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CVE Reference: CAN-2003-0459
(Links to External Site)
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Date: Jul 29 2003
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Impact: Disclosure of authentication information
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 3.1.2 and prior versions
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Description: An information disclosure vulnerability was reported in the KDE Konqueror web browser. The browser may leak URL-based authentication information via the HTTP Referer field.
It is reported that the web browser may disclose the target user's authentication credentials for one web site to other web sites
via the HTTP Referer header field. This can occur when the authentication credentials are provided via the URL (in the form 'http://user:password@host/').
The
vendor indicates that Konqueror/Embedded is also vulnerable.
The following notification timeline is provided:
07/03/2003 Notification
of security@kde.org by George Staikos
07/10/2003 Fixed in KDE CVS.
07/11/2003 OS vendors / binary package providers alerted and
provided with patches.
07/29/2003 Public Security Advisory by the KDE Security team.
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Impact: A remote user may be able to obtain the target user's authentication credentials by monitoring the HTTP Referer field.
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Solution: The vendor has released a fixed version (3.1.3), available at:
http://download.kde.org/download.php?url=stable/3.1.3/
The vendor
advises users of KDE 3.1.x to upgrade to KDE 3.1.3. A patch is available for KDE 3.1.2:
ftp://ftp.kde.org/pub/kde/security_patches
8ebafe8432e92cb4e878a37153cf12a4
post-3.1.2-kdelibs-http.patch
6f27515ca22198b4060f4a4fe3c3a6b1 post-3.1.2-kdelibs-khtml.patch
The vendor advises users of
KDE 2.2.2 to upgrade to KDE 3.1.3. Otherwise, a patch for KDE 2.2.2 is available at:
ftp://ftp.kde.org/pub/kde/security_patches
90d0a6064ee1ba99347b55e303081cd5
post-2.2.2-kdelibs-http.patch
The vendor advises users of KDE 3.0.x to upgrade to KDE 3.1.3. A patch is available for KDE 3.0.5b
for users that are unable to upgrade:
ftp://ftp.kde.org/pub/kde/security_patches
a2bd79b4a78aa7d51afe01c47a8ab6d2 post-3.0.5b-kdelibs-http.patch
a5ed29d49c07aa5a2
c63b9bbaec0e7b2 post-3.0.5b-kdelibs-khtml.patch
Users of Konqueror/Embedded are advised by the vendor to upgrade to a snapshot
of Konqueror/Embedded of July 5th, 2003 or later, available at:
http://devel-home.kde.org/~hausmann/snapshots/
30dc3e109124e8532c7c0ed6ad3ec6fb
konqueror-embedded-snapshot-20030705.tar.gz
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Vendor URL: www.kde.org/info/security/advisory-20030729-1.txt (Links to External Site)
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Cause: Access control error, State error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Tue, 29 Jul 2003 07:39:07 -0400
Subject: http://www.kde.org/info/security/advisory-20030729-1.txt
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
KDE Security Advisory: Konqueror Referer Leaking Website Authentication Credentials
Original Release Date: 2003-07-29
URL: http://www.kde.org/info/security/advisory-20030729-1.txt
0. References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0459
1. Systems affected:
All versions of Konqueror as distributed with KDE up to and including
KDE 3.1.2 as well as Konqueror/Embedded
2. Overview:
Konqueror may inadvertently send authentication credentials to
websites other than the intended website in clear text via the HTTP-referer
header when authentication credentials are passed as part of a URL in the form
of http://user:password@host/
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2003-0459 to this issue.
3. Impact:
Users of Konqueror may unknowingly distribute website authentication
credentials to third parties with links on the password protected website.
This may make it possible for those third parties to gain unauthorized access
to the password protected website.
Users of Konqueror may unknowingly send website authentication
credentials in clear text across their local network and to websites of third
parties. This may allow an attacker who is able to eavesdrop on such
communication to obtain the credentials and use them to gain unauthorized
access to the password protected website.
4. Solution:
Users can reduce, but not totally eliminate, the risk by not providing
any password as part of a URL. Instead they should provide the password in
the KDE authentication dialog when prompted.
Users of KDE 2.2.2 are advised to upgrade to KDE 3.1.3. A patch for
KDE 2.2.2 is available as well for users that are unable to upgrade to
KDE 3.1.
Users of KDE 3.0.x are advised to upgrade to KDE 3.1.3. A patch for
KDE 3.0.5b is available as well for users that are unable to upgrade to
KDE 3.1.
Users of KDE 3.1.x are advised to upgrade to KDE 3.1.3.
Users of Konqueror/Embedded are advised to upgrade to a snapshot of
Konqueror/Embedded of July 5th, 2003 or later, available from
http://devel-home.kde.org/~hausmann/snapshots/ :
30dc3e109124e8532c7c0ed6ad3ec6fb konqueror-embedded-snapshot-20030705.tar.gz
5. Patch:
A patch for KDE 2.2.2 is available from
ftp://ftp.kde.org/pub/kde/security_patches :
90d0a6064ee1ba99347b55e303081cd5 post-2.2.2-kdelibs-http.patch
Patches for KDE 3.0.5b are available from
ftp://ftp.kde.org/pub/kde/security_patches :
a2bd79b4a78aa7d51afe01c47a8ab6d2 post-3.0.5b-kdelibs-http.patch
a5ed29d49c07aa5a2c63b9bbaec0e7b2 post-3.0.5b-kdelibs-khtml.patch
Patches for KDE 3.1.2 are available from
ftp://ftp.kde.org/pub/kde/security_patches :
8ebafe8432e92cb4e878a37153cf12a4 post-3.1.2-kdelibs-http.patch
6f27515ca22198b4060f4a4fe3c3a6b1 post-3.1.2-kdelibs-khtml.patch
6. Timeline and credits:
07/03/2003 Notification of security@kde.org by George Staikos
07/10/2003 Fixed in KDE CVS.
07/11/2003 OS vendors / binary package providers alerted and
provided with patches.
07/29/2003 Public Security Advisory by the KDE Security team.
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