int(2813)

Boletines de Vulnerabilidades


Salto de autenticación en OpenSSH

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Obtener acceso
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 sshd Privilege Separation Monitor / OpenSSH < 4.5

Descripción

Se ha descubierto una vulnerabilidad en sshd Privilege Separation Monitor in OpenSSH before 4.5. La vulnerabilidad reside en un error no especificado.

Un atacante remoto podría saltarse la autentificación poruque a causa de esta vulnerabilidad no pide verificación.

Solución



Actualización de software

Mandriva

Corporate Server 3.0
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/i586/openssh-4.3p1-0.3.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/i586/openssh-askpass-4.3p1-0.3.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/i586/openssh-askpass-gnome-4.3p1-0.3.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/i586/openssh-clients-4.3p1-0.3.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/i586/openssh-server-4.3p1-0.3.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/SRPMS/openssh-4.3p1-0.3.C30mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/x86_64/openssh-4.3p1-0.3.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/x86_64/openssh-askpass-4.3p1-0.3.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/x86_64/openssh-askpass-gnome-4.3p1-0.3.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/x86_64/openssh-clients-4.3p1-0.3.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/x86_64/openssh-server-4.3p1-0.3.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/SRPMS/openssh-4.3p1-0.3.C30mdk.src.rpm

Multi Network Firewall 2.0
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/i586/openssh-4.3p1-0.3.M20mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/i586/openssh-askpass-4.3p1-0.3.M20mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/i586/openssh-askpass-gnome-4.3p1-0.3.M20mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/i586/openssh-clients-4.3p1-0.3.M20mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/i586/openssh-server-4.3p1-0.3.M20mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/SRPMS/openssh-4.3p1-0.3.M20mdk.src.rpm

Mandriva Linux 2006
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/i586/openssh-4.3p1-0.4.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/i586/openssh-askpass-4.3p1-0.4.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/i586/openssh-askpass-gnome-4.3p1-0.4.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/i586/openssh-clients-4.3p1-0.4.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/i586/openssh-server-4.3p1-0.4.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/openssh-4.3p1-0.4.20060mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/x86_64/openssh-4.3p1-0.4.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/x86_64/openssh-askpass-4.3p1-0.4.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/x86_64/openssh-askpass-gnome-4.3p1-0.4.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/x86_64/openssh-clients-4.3p1-0.4.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/x86_64/openssh-server-4.3p1-0.4.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/openssh-4.3p1-0.4.20060mdk.src.rpm

Mandriva Linux 2007
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/i586/openssh-4.5p1-0.1mdv2007.0.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/i586/openssh-askpass-4.5p1-0.1mdv2007.0.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/i586/openssh-askpass-common-4.5p1-0.1mdv2007.0.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/i586/openssh-askpass-gnome-4.5p1-0.1mdv2007.0.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/i586/openssh-clients-4.5p1-0.1mdv2007.0.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/i586/openssh-server-4.5p1-0.1mdv2007.0.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/SRPMS/openssh-4.5p1-0.1mdv2007.0.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/x86_64/openssh-4.5p1-0.1mdv2007.0.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/x86_64/openssh-askpass-4.5p1-0.1mdv2007.0.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/x86_64/openssh-askpass-common-4.5p1-0.1mdv2007.0.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/x86_64/openssh-askpass-gnome-4.5p1-0.1mdv2007.0.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/x86_64/openssh-clients-4.5p1-0.1mdv2007.0.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/x86_64/openssh-server-4.5p1-0.1mdv2007.0.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2007.0/SRPMS/openssh-4.5p1-0.1mdv2007.0.src.rpm

Corporate Server 4.0
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/i586/openssh-4.3p1-0.4.20060mlcs4.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/i586/openssh-askpass-4.3p1-0.4.20060mlcs4.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/i586/openssh-askpass-gnome-4.3p1-0.4.20060mlcs4.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/i586/openssh-clients-4.3p1-0.4.20060mlcs4.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/i586/openssh-server-4.3p1-0.4.20060mlcs4.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/SRPMS/openssh-4.3p1-0.4.20060mlcs4.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/x86_64/openssh-4.3p1-0.4.20060mlcs4.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/x86_64/openssh-askpass-4.3p1-0.4.20060mlcs4.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/x86_64/openssh-askpass-gnome-4.3p1-0.4.20060mlcs4.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/x86_64/openssh-clients-4.3p1-0.4.20060mlcs4.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/x86_64/openssh-server-4.3p1-0.4.20060mlcs4.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/4.0/SRPMS/openssh-4.3p1-0.4.20060mlcs4.src.rpm

Red Hat
Red Hat Desktop (v. 3)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
https://rhn.redhat.com/

SGI
Advanced Linux Environment 3 / RPM / Patch 10357
ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/RPMS
Advanced Linux Environment 3 / SRPM / Patch 10357
ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/SRPMS

Identificadores estándar

Propiedad Valor
CVE CVE-2006-5794
BID

Recursos adicionales

Mandriva Security Advisory (MDKSA-2006:204)
http://www.mandriva.com/security/advisories?name=MDKSA-2006:204

Red Hat Security Advisory (RHSA-2006:0738-4)
http://rhn.redhat.com/errata/RHSA-2006:0738.html

SGI Security Advisory (20061201-01-P)
ftp://patches.sgi.com/support/free/security/advisories/20061201-01-P.asc

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2006-11-10
1.1 Aviso emitido por Red Hat (RHSA-2006:0738-4) 2006-11-16
1.2 Aviso emitido por SGI (20061201-01-P) 2006-12-28

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT