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______________________________________________________________________________
Caldera International, Inc. Security Advisory
Subject: Linux - OpenLDAP attribute deletion problem
Advisory number: CSSA-2002-001.0
Issue date: 2002, January 16
Cross reference:
______________________________________________________________________________
1. Problem Description
Recently a security flaw was discovered in OpenLDAP 2.0.19 slapd(8)
regarding application of access controls upon modify operations issued
by authenticated users. Specifically, slapd(8) did not disallow a
replace with no values from deleting the attribute which was protected
by ACLs (if such was allowed by checked schema rules). That is, this
flaw allowed any authenticated user to delete any non-mandatory
attribute of an object. In 2.0 versions prior to 2.0.8, this flaw is
NOT restricted to authenticated users (that is, anonymous users can
abuse the flaw as well).
2. Vulnerable Versions
System Package
-----------------------------------------------------------
OpenLinux 2.3 not vulnerable
OpenLinux eServer 2.3.1 All packages previous to
and OpenLinux eBuilder openldap-2.0.11-11S
OpenLinux eDesktop 2.4 not vulnerable
OpenLinux Server 3.1 All packages previous to
openldap-2.0.11-11
OpenLinux Workstation 3.1 All packages previous to
openldap-2.0.11-11
OpenLinux 3.1 IA64 All packages previous to
openldap-2.0.11-11
OpenLinux Server 3.1.1 All packages previous to
openldap-2.0.11-11
OpenLinux Workstation All packages previous to
3.1.1 openldap-2.0.11-11
3. Solution
Workaround
none
The proper solution is to upgrade to the latest packages.
4. OpenLinux 2.3
not vulnerable
5. OpenLinux eServer 2.3.1 and OpenLinux eBuilder for ECential 3.0
5.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/eServer/2.3/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/eServer/2.3/current/SRPMS
5.2 Verification
b333cf77ecde92a6c3b6e4c313361e09 RPMS/openldap-2.0.11-11S.i386.rpm
360db3b5a0f9d0321b00ff0f87b82597 RPMS/openldap-devel-2.0.11-11S.i386.rpm
998057cac63c831a98cdf95aa3836618 SRPMS/openldap-2.0.11-11S.src.rpm
5.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh openldap-2.0.11-11S.i386.rpm \
openldap-devel-2.0.11-11S.i386.rpm
! test -f /var/lock/subsys/ldap || /etc/rc.d/init.d/ldap restart
6. OpenLinux eDesktop 2.4
not vulnerable
7. OpenLinux 3.1 Server
7.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Server/current/SRPMS
7.2 Verification
9f26a9aeece05e9b105ad91dc7a42e81 RPMS/openldap-2.0.11-11.i386.rpm
c9d647ce4c4e32504f8e4dc591abf913 RPMS/openldap-devel-2.0.11-11.i386.rpm
9c711fcadd57f4438804f28f9f093ff1 SRPMS/openldap-2.0.11-11.src.rpm
7.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh openldap-2.0.11-11.i386.rpm \
openldap-devel-2.0.11-11.i386.rpm
! test -f /var/lock/subsys/ldap || /etc/rc.d/init.d/ldap restart
8. OpenLinux 3.1 Workstation
8.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/Workstation/current/SRPMS
8.2 Verification
9f26a9aeece05e9b105ad91dc7a42e81 RPMS/openldap-2.0.11-11.i386.rpm
c9d647ce4c4e32504f8e4dc591abf913 RPMS/openldap-devel-2.0.11-11.i386.rpm
9c711fcadd57f4438804f28f9f093ff1 SRPMS/openldap-2.0.11-11.src.rpm
8.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh openldap-2.0.11-11.i386.rpm \
openldap-devel-2.0.11-11.i386.rpm
! test -f /var/lock/subsys/ldap || /etc/rc.d/init.d/ldap restart
9. OpenLinux 3.1 IA64
9.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/IA64/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1/IA64/current/SRPMS
9.2 Verification
8930f4659c778991f12e2321db0c15f1 RPMS/openldap-2.0.11-11.ia64.rpm
40057a2bc591a7ea7b3fbd9f30a38ffb RPMS/openldap-devel-2.0.11-11.ia64.rpm
9c711fcadd57f4438804f28f9f093ff1 SRPMS/openldap-2.0.11-11.src.rpm
9.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh openldap-2.0.11-11.ia64.rpm \
openldap-devel-2.0.11-11.ia64.rpm
! test -f /var/lock/subsys/ldap || /etc/rc.d/init.d/ldap restart
10. OpenLinux 3.1.1 Server
10.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Server/current/SRPMS
10.2 Verification
6063e436317e63de7d7dfd1d6ab11e47 RPMS/openldap-2.0.11-11.i386.rpm
886b4f5106c4fd116a1e8a5a51a90f53 RPMS/openldap-devel-2.0.11-11.i386.rpm
9c711fcadd57f4438804f28f9f093ff1 SRPMS/openldap-2.0.11-11.src.rpm
10.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh openldap-2.0.11-11.i386.rpm \
openldap-devel-2.0.11-11.i386.rpm
! test -f /var/lock/subsys/ldap || /etc/rc.d/init.d/ldap restart
11. OpenLinux 3.1.1 Workstation
11.1 Location of Fixed Packages
The upgrade packages can be found on Caldera's FTP site at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/current/RPMS
The corresponding source code package can be found at:
ftp://ftp.caldera.com/pub/updates/OpenLinux/3.1.1/Workstation/current/SRPMS
11.2 Verification
6063e436317e63de7d7dfd1d6ab11e47 RPMS/openldap-2.0.11-11.i386.rpm
886b4f5106c4fd116a1e8a5a51a90f53 RPMS/openldap-devel-2.0.11-11.i386.rpm
9c711fcadd57f4438804f28f9f093ff1 SRPMS/openldap-2.0.11-11.src.rpm
11.3 Installing Fixed Packages
Upgrade the affected packages with the following commands:
rpm -Fvh openldap-2.0.11-11.i386.rpm \
openldap-devel-2.0.11-11.i386.rpm
! test -f /var/lock/subsys/ldap || /etc/rc.d/init.d/ldap restart
12. References
This and other Caldera security resources are located at:
http://www.caldera.com/support/security/index.html
This security fix closes Caldera's internal Problem Report 11338.
13. Disclaimer
Caldera International, Inc. is not responsible for the misuse of
any of the information we provide on this website and/or through our
security advisories. Our advisories are a service to our customers
intended to promote secure installation and use of Caldera OpenLinux.
______________________________________________________________________________
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This archive was generated by hypermail 2b30 : Fri Feb 08 2002 - 15:48:00 PST