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Category:   Application (E-mail Server)  >   IMAP Toolkit (uw-imap) Vendors:   University of Washington
(Mandrake Issues Fix) UW IMAP CRAM-MD5 Authentication Flaw Lets Remote Users Access Arbitrary IMAP Accounts
SecurityTracker Alert ID:  1013057
SecurityTracker URL:  http://securitytracker.com/id/1013057
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Feb 2 2005
Impact:   User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2004b
Description:   A vulnerability was reported in the University of Washington IMAP server. A remote user can access e-mail accounts when the system uses a certain authentication mechanism.

US-CERT reported that Challenge-Response Authentication Mechanism with MD5 (CRAM-MD5) code contains a logic error that may allow a remote user to authenticate as any target user and access the target user's IMAP account.

CRAM-MD5 authentication is not a default configuration.

Impact:   A remote user can gain access to a target user's IMAP account.
Solution:   Mandrake has released a fix.

Mandrakelinux 10.0:
bb07b8f18a3361462a84e87b80b57cf0 10.0/RPMS/imap-2002d-8.1.100mdk.i586.rpm
77577fab50f1ec4a12f89aefb7f376cc 10.0/RPMS/imap-devel-2002d-8.1.100mdk.i586.rpm
76008b605f6385d31cb9e4b9666b4fa5 10.0/RPMS/imap-utils-2002d-8.1.100mdk.i586.rpm
058e7653cdfb864f533b1d075ece1416 10.0/SRPMS/imap-2002d-8.1.100mdk.src.rpm

Mandrakelinux 10.0/AMD64:
cb9aae48e0810a817ec192c51eaf03a8 amd64/10.0/RPMS/imap-2002d-8.1.100mdk.amd64.rpm
66dfb869b52990741f2ad7e938ee8e8b amd64/10.0/RPMS/imap-devel-2002d-8.1.100mdk.amd64.rpm
121273e33367dfff82de8e1bc12f377f amd64/10.0/RPMS/imap-utils-2002d-8.1.100mdk.amd64.rpm
058e7653cdfb864f533b1d075ece1416 amd64/10.0/SRPMS/imap-2002d-8.1.100mdk.src.rpm

Mandrakelinux 10.1:
3813c3cebdadfd80ce30f6082b0df8fb 10.1/RPMS/imap-2004-2.1.101mdk.i586.rpm
a0ca6f62229b328d0fdfa29cad58b379 10.1/RPMS/imap-devel-2004-2.1.101mdk.i586.rpm
3ea67ea07c660b7dceec0f47e55476ab 10.1/RPMS/imap-utils-2004-2.1.101mdk.i586.rpm
3ff0d1358d1966341193d00caeef1316 10.1/RPMS/libc-client-php0-2004-2.1.101mdk.i586.rpm
3a1fc8e65376cf679d4e29c477020288 10.1/RPMS/libc-client-php0-devel-2004-2.1.101mdk.i586.rpm
d156e467dccca32c84cf4931e3377c57 10.1/SRPMS/imap-2004-2.1.101mdk.src.rpm

Mandrakelinux 10.1/X86_64:
45872ee039ab6ac87f2b68524d851296 x86_64/10.1/RPMS/imap-2004-2.1.101mdk.x86_64.rpm
67c7d1d77e57a1888d70c9730bbeadfc x86_64/10.1/RPMS/imap-devel-2004-2.1.101mdk.x86_64.rpm
28bd787cf5559e5a1e8a17bfbb48a58b x86_64/10.1/RPMS/imap-utils-2004-2.1.101mdk.x86_64.rpm
3c7ee6f3dfc7c04d297d4006616d12fe x86_64/10.1/RPMS/lib64c-client-php0-2004-2.1.101mdk.x86_64.rpm
2c428817976c7fbdf098f2dc8ec6b1a0 x86_64/10.1/RPMS/lib64c-client-php0-devel-2004-2.1.101mdk.x86_64.rpm
d156e467dccca32c84cf4931e3377c57 x86_64/10.1/SRPMS/imap-2004-2.1.101mdk.src.rpm

Corporate Server 3.0:
46e894a9f155c9a64e8f02c089b44cfa corporate/3.0/RPMS/imap-2002d-8.1.C30mdk.i586.rpm
1f27b80c3057464677d1b6418a2818c7 corporate/3.0/RPMS/imap-devel-2002d-8.1.C30mdk.i586.rpm
e8d0ea837452b521fda5a837a83ceeeb corporate/3.0/RPMS/imap-utils-2002d-8.1.C30mdk.i586.rpm
b20b866e08d8f579db6ae6745b525d29 corporate/3.0/SRPMS/imap-2002d-8.1.C30mdk.src.rpm

Corporate Server 3.0/x86_64:
0d4344c88bbb2cdc49a13a085075aadc x86_64/corporate/3.0/RPMS/imap-2002d-8.1.C30mdk.x86_64.rpm
c151fd6e15057870c21e33a3f76bc63c x86_64/corporate/3.0/RPMS/imap-devel-2002d-8.1.C30mdk.x86_64.rpm
de4fb51bcf679289848f91e3bc7ac59d x86_64/corporate/3.0/RPMS/imap-utils-2002d-8.1.C30mdk.x86_64.rpm
b20b866e08d8f579db6ae6745b525d29 x86_64/corporate/3.0/SRPMS/imap-2002d-8.1.C30mdk.src.rpm

Vendor URL:  www.washington.edu/imap/ (Links to External Site)
Cause:   Authentication error
Underlying OS:  Linux (Mandriva/Mandrake)
Underlying OS Comments:  10.0, 10.1, Corporate Server 3.0

Message History:   This archive entry is a follow-up to the message listed below.
Jan 28 2005 UW IMAP CRAM-MD5 Authentication Flaw Lets Remote Users Access Arbitrary IMAP Accounts



 Source Message Contents

Subject:  [Security Announce] MDKSA-2005:026 - Updated imap packages fix


This is a multi-part message in MIME format...

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

 _______________________________________________________________________

                 Mandrakelinux Security Update Advisory
 _______________________________________________________________________

 Package name:           imap
 Advisory ID:            MDKSA-2005:026
 Date:                   February 1st, 2005

 Affected versions:	 10.0, 10.1, Corporate Server 3.0
 ______________________________________________________________________

 Problem Description:

 A vulnerability was discovered in the CRAM-MD5 authentication in
 UW-IMAP where, on the fourth failed authentication attempt, a user
 would be able to access the IMAP server regardless.  This problem
 exists only if you are using CRAM-MD5 authentication and have an
 /etc/cram-md5.pwd file.  This is not the default setup.
 
 The updated packages have been patched to prevent these problems.
 _______________________________________________________________________

 References:

  http://www.kb.cert.org/vuls/id/702777
 ______________________________________________________________________

 Updated Packages:
  
 Mandrakelinux 10.0:
 bb07b8f18a3361462a84e87b80b57cf0  10.0/RPMS/imap-2002d-8.1.100mdk.i586.rpm
 77577fab50f1ec4a12f89aefb7f376cc  10.0/RPMS/imap-devel-2002d-8.1.100mdk.i586.rpm
 76008b605f6385d31cb9e4b9666b4fa5  10.0/RPMS/imap-utils-2002d-8.1.100mdk.i586.rpm
 058e7653cdfb864f533b1d075ece1416  10.0/SRPMS/imap-2002d-8.1.100mdk.src.rpm

 Mandrakelinux 10.0/AMD64:
 cb9aae48e0810a817ec192c51eaf03a8  amd64/10.0/RPMS/imap-2002d-8.1.100mdk.amd64.rpm
 66dfb869b52990741f2ad7e938ee8e8b  amd64/10.0/RPMS/imap-devel-2002d-8.1.100mdk.amd64.rpm
 121273e33367dfff82de8e1bc12f377f  amd64/10.0/RPMS/imap-utils-2002d-8.1.100mdk.amd64.rpm
 058e7653cdfb864f533b1d075ece1416  amd64/10.0/SRPMS/imap-2002d-8.1.100mdk.src.rpm

 Mandrakelinux 10.1:
 3813c3cebdadfd80ce30f6082b0df8fb  10.1/RPMS/imap-2004-2.1.101mdk.i586.rpm
 a0ca6f62229b328d0fdfa29cad58b379  10.1/RPMS/imap-devel-2004-2.1.101mdk.i586.rpm
 3ea67ea07c660b7dceec0f47e55476ab  10.1/RPMS/imap-utils-2004-2.1.101mdk.i586.rpm
 3ff0d1358d1966341193d00caeef1316  10.1/RPMS/libc-client-php0-2004-2.1.101mdk.i586.rpm
 3a1fc8e65376cf679d4e29c477020288  10.1/RPMS/libc-client-php0-devel-2004-2.1.101mdk.i586.rpm
 d156e467dccca32c84cf4931e3377c57  10.1/SRPMS/imap-2004-2.1.101mdk.src.rpm

 Mandrakelinux 10.1/X86_64:
 45872ee039ab6ac87f2b68524d851296  x86_64/10.1/RPMS/imap-2004-2.1.101mdk.x86_64.rpm
 67c7d1d77e57a1888d70c9730bbeadfc  x86_64/10.1/RPMS/imap-devel-2004-2.1.101mdk.x86_64.rpm
 28bd787cf5559e5a1e8a17bfbb48a58b  x86_64/10.1/RPMS/imap-utils-2004-2.1.101mdk.x86_64.rpm
 3c7ee6f3dfc7c04d297d4006616d12fe  x86_64/10.1/RPMS/lib64c-client-php0-2004-2.1.101mdk.x86_64.rpm
 2c428817976c7fbdf098f2dc8ec6b1a0  x86_64/10.1/RPMS/lib64c-client-php0-devel-2004-2.1.101mdk.x86_64.rpm
 d156e467dccca32c84cf4931e3377c57  x86_64/10.1/SRPMS/imap-2004-2.1.101mdk.src.rpm

 Corporate Server 3.0:
 46e894a9f155c9a64e8f02c089b44cfa  corporate/3.0/RPMS/imap-2002d-8.1.C30mdk.i586.rpm
 1f27b80c3057464677d1b6418a2818c7  corporate/3.0/RPMS/imap-devel-2002d-8.1.C30mdk.i586.rpm
 e8d0ea837452b521fda5a837a83ceeeb  corporate/3.0/RPMS/imap-utils-2002d-8.1.C30mdk.i586.rpm
 b20b866e08d8f579db6ae6745b525d29  corporate/3.0/SRPMS/imap-2002d-8.1.C30mdk.src.rpm

 Corporate Server 3.0/x86_64:
 0d4344c88bbb2cdc49a13a085075aadc  x86_64/corporate/3.0/RPMS/imap-2002d-8.1.C30mdk.x86_64.rpm
 c151fd6e15057870c21e33a3f76bc63c  x86_64/corporate/3.0/RPMS/imap-devel-2002d-8.1.C30mdk.x86_64.rpm
 de4fb51bcf679289848f91e3bc7ac59d  x86_64/corporate/3.0/RPMS/imap-utils-2002d-8.1.C30mdk.x86_64.rpm
 b20b866e08d8f579db6ae6745b525d29  x86_64/corporate/3.0/SRPMS/imap-2002d-8.1.C30mdk.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrakeUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 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 pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandrakelinux at:

  http://www.mandrakesoft.com/security/advisories

 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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Content-Type: text/plain; name="message.footer"
Content-Disposition: inline; filename="message.footer"
Content-Transfer-Encoding: 8bit

____________________________________________________
Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com
Join the Club : http://www.mandrakeclub.com
____________________________________________________

------------=_1107320550-31468-771--

 
 


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