Denegación de Servicio en el servidor nmbd de Samba
|
Clasificación de la vulnerabilidad
|
Propiedad |
Valor |
Nivel de Confianza |
Oficial |
Impacto |
Denegación de Servicio |
Dificultad |
Avanzado |
Requerimientos del atacante |
Acceso remoto sin cuenta a un servicio estandar |
Información sobre el sistema
|
Propiedad |
Valor |
Fabricant afectat |
GNU/Linux |
Software afectado |
Samba 3.0.x <=v3.0.6 |
Descripción
|
Se ha descubierto un error de validación de entrada en el servidor nmbd de las versiones 3.0.x menores o igual a la 3.0.6 de Samba. La vulnerabilidad reside en el manejo de las peticiones SAM_UAS_CHANGE por parte de la función process_logon_packet().
La explotación de esta vulnerabilidad podría permitir a un atacante remoto provocar una situación de denegación de servicio del servidor nmbd mediante un paquete UDP malformado.
Es importante notar que esta vulnerabilidad solamente es explotable cuando el demonio nmbd ha sido configurado para aceptar conexiones de dominio. |
Solución
|
Actualización de software
Samba
Samba 3.0.5 - Parche
http://download.samba.org/samba/ftp/patches/security/
Mandrake Linux
Mandrakelinux 10.0
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/libsmbclient0-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/libsmbclient0-devel-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/libsmbclient0-static-devel-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/nss_wins-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-client-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-common-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-doc-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-passdb-mysql-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-passdb-pgsql-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-passdb-xml-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-server-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-swat-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/samba-winbind-3.0.6-4.1.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/SRPMS/samba-3.0.6-4.1.100mdk.src.rpm
AMD64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/lib64smbclient0-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/lib64smbclient0-devel-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/lib64smbclient0-static-devel-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/nss_wins-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-client-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-common-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-doc-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-passdb-mysql-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-passdb-pgsql-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-passdb-xml-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-server-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-swat-3.0.6-4.1.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/samba-winbind-3.0.6-4.1.100mdk.amd64.rpm
Red Hat Linux
Red Hat Desktop (v. 3)
AMD64
samba-3.0.7-1.3E.x86_64.rpm
samba-client-3.0.7-1.3E.x86_64.rpm
samba-common-3.0.7-1.3E.x86_64.rpm
samba-swat-3.0.7-1.3E.x86_64.rpm
SRPMS
samba-3.0.7-1.3E.src.rpm
i386
samba-3.0.7-1.3E.i386.rpm
samba-client-3.0.7-1.3E.i386.rpm
samba-common-3.0.7-1.3E.i386.rpm
samba-swat-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
https://rhn.redhat.com/
Red Hat Enterprise Linux AS (v. 3)
AMD64
samba-3.0.7-1.3E.x86_64.rpm
samba-client-3.0.7-1.3E.x86_64.rpm
samba-common-3.0.7-1.3E.x86_64.rpm
samba-swat-3.0.7-1.3E.x86_64.rpm
SRPMS
samba-3.0.7-1.3E.src.rpm
i386
samba-3.0.7-1.3E.i386.rpm
samba-client-3.0.7-1.3E.i386.rpm
samba-common-3.0.7-1.3E.i386.rpm
samba-swat-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
ia64
samba-3.0.7-1.3E.ia64.rpm
samba-client-3.0.7-1.3E.ia64.rpm
samba-common-3.0.7-1.3E.ia64.rpm
samba-swat-3.0.7-1.3E.ia64.rpm
ppc
samba-3.0.7-1.3E.ppc.rpm
samba-client-3.0.7-1.3E.ppc.rpm
samba-common-3.0.7-1.3E.ppc.rpm
samba-swat-3.0.7-1.3E.ppc.rpm
s390
samba-3.0.7-1.3E.s390.rpm
samba-client-3.0.7-1.3E.s390.rpm
samba-common-3.0.7-1.3E.s390.rpm
samba-swat-3.0.7-1.3E.s390.rpm
samba-3.0.7-1.3E.s390.rpm
s390x
samba-3.0.7-1.3E.s390x.rpm
samba-client-3.0.7-1.3E.s390x.rpm
samba-common-3.0.7-1.3E.s390x.rpm
samba-swat-3.0.7-1.3E.s390x.rpm
https://rhn.redhat.com/
Red Hat Enterprise Linux ES (v. 3)
AMD64
samba-3.0.7-1.3E.x86_64.rpm
samba-client-3.0.7-1.3E.x86_64.rpm
samba-common-3.0.7-1.3E.x86_64.rpm
samba-swat-3.0.7-1.3E.x86_64.rpm
SRPMS
samba-3.0.7-1.3E.src.rpm
i386
samba-3.0.7-1.3E.i386.rpm
samba-client-3.0.7-1.3E.i386.rpm
samba-common-3.0.7-1.3E.i386.rpm
samba-swat-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
ia64
samba-3.0.7-1.3E.ia64.rpm
samba-client-3.0.7-1.3E.ia64.rpm
samba-common-3.0.7-1.3E.ia64.rpm
samba-swat-3.0.7-1.3E.ia64.rpm
https://rhn.redhat.com/
Red Hat Enterprise Linux WS (v. 3)
AMD64
samba-3.0.7-1.3E.x86_64.rpm
samba-client-3.0.7-1.3E.x86_64.rpm
samba-common-3.0.7-1.3E.x86_64.rpm
samba-swat-3.0.7-1.3E.x86_64.rpm
SRPMS
samba-3.0.7-1.3E.src.rpm
i386
samba-3.0.7-1.3E.i386.rpm
samba-client-3.0.7-1.3E.i386.rpm
samba-common-3.0.7-1.3E.i386.rpm
samba-swat-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
samba-3.0.7-1.3E.i386.rpm
ia64
samba-3.0.7-1.3E.ia64.rpm
samba-client-3.0.7-1.3E.ia64.rpm
samba-common-3.0.7-1.3E.ia64.rpm
samba-swat-3.0.7-1.3E.ia64.rpm
https://rhn.redhat.com/ |
Identificadores estándar
|
Propiedad |
Valor |
CVE |
CAN-2004-0808 |
BID |
NULL |
Recursos adicionales
|
Samba announce: Samba 3.0.x Denial of Service Flaw
http://us1.samba.org/samba/history/3.0_DOS_sept04_announce.txt
iDEFENSE Security Advisory 09.13.04a
www.idefense.com/application/poi/display?id=138&type=vulnerabilities
Mandrakesoft Security Advisory MDKSA-2004:092
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:092
Red Hat Security Advisory RHSA-2004:467-04
https://rhn.redhat.com/errata/RHSA-2004-467.html |
Histórico de versiones
|
Versión |
Comentario |
Data |
1.0
|
Aviso emitido
|
2004-09-14
|
1.1
|
Aviso emitido por Red Hat (RHSA-2004:467-04)
|
2004-09-23
|