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[Debian] Schwachstelle in zope-ldapuserfolder - DSA-2096-1



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Liebe Kolleginnen und Kollegen,

soeben erreichte uns nachfolgende Warnung des Debian-Teams. Wir geben
diese Informationen unveraendert an Sie weiter.

CVE-2010-2944 - Schwachstelle in zope-ldapuserfolder

  Die Zope-Erweiterung ldapuserfolder ueberprueft bei der
  Authentifizierung des sog. Emergency-Users, nicht das angegebene
  Passwort auf seine Gueltigkeit. Dies kann einem Angreifer, welcher den
  Benutzernamen des Accounts in Erfahrung bringt, ermoeglichen, Zugriff
  auf das System zu erhalten.


Betroffen sind die folgenden Software Pakete und Plattformen:

  Paket zope in der stable Distribution (lenny) vor Version 2.9-1+lenny1 
  
  

  Stable Distribution (lenny)


Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.

Mit freundlichen Gruessen,
   Michael Groening, DFN-CERT
- -- 

Michael Groening (Incident Response Team)

DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone  +49 40 808077-590
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.:  DE 232129737
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski

Automatische Warnmeldungen               https://www.cert.dfn.de/autowarn

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- - ------------------------------------------------------------------------
Debian Security Advisory DSA-2096-1                  security@xxxxxxxxxx
http://www.debian.org/security/                       Moritz Muehlenhoff
August 24, 2010                       http://www.debian.org/security/faq
- - ------------------------------------------------------------------------

Package        : zope-ldapuserfolder
Vulnerability  : missing input validation
Problem type   : remote
Debian-specific: no
CVE Id         : CVE-2010-2944
Debian Bug     : 593466

Jeremy James discovered that in zope-ldapuserfolder, a Zope extension
used to authenticate against an LDAP server, the authentication code
does not verify the password provided for the emergency user. Malicious
users that manage to get the emergency user login can use this flaw to
gain administrative access to the Zope instance, by providing an
arbitrary password.

For the stable distribution (lenny), this problem has been fixed in
version 2.9-1+lenny1.

The package no longer exists in the upcoming stable distribution
(squeeze) or the unstable distribution.

We recommend that you upgrade your zope-ldapuserfolder package.

Upgrade instructions
- - --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 5.0 alias lenny
- - --------------------------------

Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/z/zope-ldapuserfolder/zope-ldapuserfolder_2.9.orig.tar.gz
    Size/MD5 checksum:   106677 c380401e4de43c4aa5aad8c7af104ac5
  http://security.debian.org/pool/updates/main/z/zope-ldapuserfolder/zope-ldapuserfolder_2.9-1+lenny1.dsc
    Size/MD5 checksum:     1122 65bc92834fb17c525b9c5a43589a05e6
  http://security.debian.org/pool/updates/main/z/zope-ldapuserfolder/zope-ldapuserfolder_2.9-1+lenny1.diff.gz
    Size/MD5 checksum:     2635 fdfc884244f970d77f3da18a638a135c

Architecture independent packages:

  http://security.debian.org/pool/updates/main/z/zope-ldapuserfolder/zope-ldapuserfolder_2.9-1+lenny1_all.deb
    Size/MD5 checksum:   110686 44db774a6142e62e71ac0e0cb9e6fafa


  These files will probably be moved into the stable distribution on
  its next update.

- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@xxxxxxxxxxxxxxxx
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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