New zope-ldapuserfolder packages has been released for Debian GNU/Linux to fix authentication bypass



[SECURITY] [DSA 2096-1] New zope-ldapuserfolder packages fix authentication bypass

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Debian Security Advisory DSA-2096-1 security@debian.org
Debian -- Security Information Moritz Muehlenhoff
August 24, 2010 Debian -- Debian security FAQ
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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
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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
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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.