int(4929)

Boletines de Vulnerabilidades


Suplantación de servidores SSL en OpenLDAP

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Confidencialidad
Dificultad Experto
Requerimientos del atacante Acceso remoto sin cuenta a un servicio estandar

Información sobre el sistema

Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado OpenLDAP

Descripción

Se ha descubierto una vulnerabilidad en OpenLDAP. La vulnerabilidad reside en un error en el manejo del carácter "\0" en el campo CommonName de un certificado X.509 en "libraries/libldap/tls_o.c".

Un atacante podría realizar un atauqe de hombre en el medio y suplantar servidores SSL arbitrarios mediante un certificado especialmente diseñado.

Solución



Actualización de software

Debian (DSA-1943-1)

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/o/openldap2.3/openldap2.3_2.3.30.orig.tar.gz
http://security.debian.org/pool/updates/main/o/openldap2.3/openldap2.3_2.3.30-5+etch3.dsc
http://security.debian.org/pool/updates/main/o/openldap2.3/openldap2.3_2.3.30-5+etch3.diff.gz
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_arm.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_arm.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_arm.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_i386.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_i386.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_mips.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_mips.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_mips.deb
mipsel (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_mipsel.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_mipsel.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_mipsel.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_powerpc.deb
s390 (IBM S/390)
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_s390.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_s390.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_s390.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/o/openldap2.3/slapd_2.3.30-5+etch3_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/ldap-utils_2.3.30-5+etch3_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap2.3/libldap-2.3-0_2.3.30-5+etch3_sparc.deb

Debian (DSA-1943-1)

Debian Linux 5.0
Source
http://security.debian.org/pool/updates/main/o/openldap/openldap_2.4.11-1+lenny1.diff.gz
http://security.debian.org/pool/updates/main/o/openldap/openldap_2.4.11-1+lenny1.dsc
http://security.debian.org/pool/updates/main/o/openldap/openldap_2.4.11.orig.tar.gz
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_alpha.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_amd64.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_arm.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_arm.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_hppa.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_i386.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_ia64.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_mips.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_mips.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_powerpc.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_powerpc.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/o/openldap/libldap2-dev_2.4.11-1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap/ldap-utils_2.4.11-1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd_2.4.11-1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2-dbg_2.4.11-1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap/libldap-2.4-2_2.4.11-1+lenny1_sparc.deb
http://security.debian.org/pool/updates/main/o/openldap/slapd-dbg_2.4.11-1+lenny1_sparc.deb

Red Hat (RHSA-2010:0543-1)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux Desktop (v. 4)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 4)
https://rhn.redhat.com/

Identificadores estándar

Propiedad Valor
CVE CVE-2009-3767
BID

Recursos adicionales

Debian Security Advisory (DSA-1943-1)
http://lists.debian.org/debian-security-announce/2009/msg00266.html

Red Hat Security Advisory (RHSA-2010:0543-1)
https://rhn.redhat.com/errata/RHSA-2010-0543.html

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2009-12-17
1.1 Aviso emitido por Red Hat (RHSA-2010:0198-4) 2010-04-12
1.2 Aviso emitido por Red Hat (RHSA-2010:0543-1) 2010-08-10

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT