(Mandrake Issues Fix) KDE Konqueror Cookie Path Restrictions Can Be Bypassed By Remote Servers
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SecurityTracker Alert ID: 1009383
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SecurityTracker URL: http://securitytracker.com/id?1009383
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CVE Reference: CAN-2003-0592
(Links to External Site)
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Updated: Aug 30 2004
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Original Entry Date: Mar 11 2004
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Impact: Disclosure of authentication information, Disclosure of user information
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Fix Available: Yes
Vendor Confirmed: Yes
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Description: A vulnerability was reported in KDE Konqueror in the processing of cookies. A remote user may be able to bypass the path restrictions specified by a cookie's originator. Several other browsers are also affected.
Corsaire reported that a remote user (server) can employ a combination of path traversal and encoding techniques to bypass cookie
path restrictions in the target user's browser.
Malicious software on a server can obtain cookies from the target user's browser
that should be restricted to a separate application path on the same server.
A demonstration exploit URL format is provided:
http://host/secure/%2e%2e/sample/insecu
re.cgi?xss=<golarge>
In the above example format, the 'insecure.cgi' application can obtain cookies that are ostensibly restricted
to the '/secure' path.
The affected vendors were reportedly notified between July 12 and July 18, 2003.
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Impact: A remote server application can obtain cookies from the target user's browser for the same domain but regardless of the path restrictions.
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Solution: Mandrake has issued a fix for kdelibs.
Mandrakelinux 9.1:
14bd813799d4891d520d1f8e7a525476 9.1/RPMS/kdelibs-3.1-58.3.91mdk.i586.rpm
924fc0bec108f94236c97d640774f8c5 9.1/RPMS/kdelibs-common-3.1-58.3.91mdk.i586.rpm
28bfd2897fb91fadcba14864c5ab85fa 9.1/RPMS/kdelibs-devel-3.1-58.3.91mdk.i586.rpm
a02c4dc06c2122241fe2e4abc77e1c67 9.1/RPMS/kdelibs-static-devel-3.1-58.3.91mdk.i586.rpm
00230239edea7418aa01897d23f5dd07 9.1/SRPMS/kdelibs-3.1-58.3.91mdk.src.rpm
Mandrakelinux 9.1/PPC:
7f42212e4e4198af1460865f585a15cf ppc/9.1/RPMS/kdelibs-3.1-58.3.91mdk.ppc.rpm
d3db934d1ad9b0e9e04e9fab43b7f0c9
ppc/9.1/RPMS/kdelibs-common-3.1-58.3.91mdk.ppc.rpm
71b0d44138e874d8089298594a7e30a8 ppc/9.1/RPMS/kdelibs-devel-3.1-58.3.91mdk.ppc.rpm
318a821a280404541a929b8d3d55339e ppc/9.1/RPMS/kdelibs-static-devel-3.1-58.3.91mdk.ppc.rpm
00230239edea7418aa01897d23f5dd07 ppc/9.1/SRPMS/kdelibs-3.1-58.3.91mdk.src.rp
m
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Vendor URL: www.kde.org/ (Links to External Site)
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Cause: Access control error, Input validation error
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Underlying OS: Linux (Mandrake)
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Underlying OS Comments: 9.1
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Reported By: Mandrake Linux Security Team <security@linux-mandrake.com>
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: 10 Mar 2004 16:37:48 -0000
From: Mandrake Linux Security Team <security@linux-mandrake.com>
Subject: MDKSA-2004:022 - Updated kdelibs packages fix cookie theft vulnerability
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
_______________________________________________________________________
Mandrakelinux Security Update Advisory
_______________________________________________________________________
Package name: kdelibs
Advisory ID: MDKSA-2004:022
Date: March 10th, 2004
Affected versions: 9.1
______________________________________________________________________
Problem Description:
Corsaire discovered that a number of HTTP user agents contained a flaw
in how they handle cookies. This flaw could allow an attacker to
avoid the path restrictions specified by a cookie's originator.
According to their advisory:
"The cookie specifications detail a path argument that can be used to
restrict the areas of a host that will be exposed to a cookie. By
using standard traversal techniques this functionality can be
subverted, potentially exposing the cookie to scrutiny and use in
further attacks."
This issue was fixed in KDE 3.1.3; the updated packages are patched to
protect against this vulnerability.
_______________________________________________________________________
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0592
______________________________________________________________________
Updated Packages:
Mandrakelinux 9.1:
14bd813799d4891d520d1f8e7a525476 9.1/RPMS/kdelibs-3.1-58.3.91mdk.i586.rpm
924fc0bec108f94236c97d640774f8c5 9.1/RPMS/kdelibs-common-3.1-58.3.91mdk.i586.rpm
28bfd2897fb91fadcba14864c5ab85fa 9.1/RPMS/kdelibs-devel-3.1-58.3.91mdk.i586.rpm
a02c4dc06c2122241fe2e4abc77e1c67 9.1/RPMS/kdelibs-static-devel-3.1-58.3.91mdk.i586.rpm
00230239edea7418aa01897d23f5dd07 9.1/SRPMS/kdelibs-3.1-58.3.91mdk.src.rpm
Mandrakelinux 9.1/PPC:
7f42212e4e4198af1460865f585a15cf ppc/9.1/RPMS/kdelibs-3.1-58.3.91mdk.ppc.rpm
d3db934d1ad9b0e9e04e9fab43b7f0c9 ppc/9.1/RPMS/kdelibs-common-3.1-58.3.91mdk.ppc.rpm
71b0d44138e874d8089298594a7e30a8 ppc/9.1/RPMS/kdelibs-devel-3.1-58.3.91mdk.ppc.rpm
318a821a280404541a929b8d3d55339e ppc/9.1/RPMS/kdelibs-static-devel-3.1-58.3.91mdk.ppc.rpm
00230239edea7418aa01897d23f5dd07 ppc/9.1/SRPMS/kdelibs-3.1-58.3.91mdk.src.rpm
_______________________________________________________________________
To upgrade automatically use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
A list of FTP mirrors can be obtained from:
http://www.mandrakesecure.net/en/ftp.php
All packages are signed by Mandrakesoft for security. You can obtain
the GPG public key of the Mandrakelinux Security Team by executing:
gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98
Please be aware that sometimes it takes the mirrors a few hours to
update.
You can view other update advisories for Mandrakelinux at:
http://www.mandrakesecure.net/en/advisories/
Mandrakesoft has several security-related mailing list services that
anyone can subscribe to. Information on these lists can be obtained by
visiting:
http://www.mandrakesecure.net/en/mlist.php
If you want to report vulnerabilities, please contact
security_linux-mandrake.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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