Desbordamiento de búfer en Squid Web Proxy Cache
|
Clasificación de la vulnerabilidad
|
Propiedad |
Valor |
Nivel de Confianza |
Oficial |
Impacto |
Obtener acceso |
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 |
Squid-Proxy 2.5.*-STABLE
Squid-Proxy 3.*-PRE |
Descripción
|
Se ha descubierto una vulnerabilidad de desbordamiento de búfer en Squid Web Proxy Cache. La vulnerabilidad reside en la implementación de la autenticación NTLM, concretamente en la función ntlm_check_auth().
La explotación de esta vulnerabilidad podría permitir a un atacante remoto la ejecución remota de código mediante el envío de un password especialmente diseñado cuando el servidor este configurado para soportar autenticación NTLM. |
Solución
|
Si lo desea, aplique los mecanismos de actualización propios de su distribución, o bien baje las fuentes del software y compílelo usted mismo.
Actualización de software
Squid Proxy Web Cache
Squid-Proxy 2.5.*-STABLE
Squid-Proxy 3.*-PRE
http://www.squid-cache.org/~wessels/patch/libntlmssp.c.patch
Mandrake Linux
Mandrakelinux 9.1
i386
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/9.1/RPMS/squid-2.5.STABLE1-7.2.91mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/9.1/SRPMS/squid-2.5.STABLE1-7.2.91mdk.src.rpm
PPC
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/ppc/9.1/RPMS/squid-2.5.STABLE1-7.2.91mdk.ppc.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/ppc/9.1/SRPMS/squid-2.5.STABLE1-7.2.91mdk.src.rpm
Mandrakelinux 9.2
i386
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/9.2/RPMS/squid-2.5.STABLE3-3.2.92mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/9.2/SRPMS/squid-2.5.STABLE3-3.2.92mdk.src.rpm
AMD64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/9.2/RPMS/squid-2.5.STABLE3-3.2.92mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/9.2/SRPMS/squid-2.5.STABLE3-3.2.92mdk.src.rpm
Mandrakelinux 10.0
i386
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/squid-2.5.STABLE4-1.2.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/SRPMS/squid-2.5.STABLE4-1.2.100mdk.src.rpm
AMD64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/squid-2.5.STABLE4-1.2.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/SRPMS/squid-2.5.STABLE4-1.2.100mdk.src.rpm
Red Hat Linux
Red Hat Desktop (v. 3)
AMD64
squid-2.5.STABLE3-6.3E.x86_64.rpm
SRPMS
squid-2.5.STABLE3-6.3E.src.rpm
i386
squid-2.5.STABLE3-6.3E.i386.rpm
https://rhn.redhat.com/
Red Hat Enterprise Linux AS (v. 3)
AMD64
squid-2.5.STABLE3-6.3E.x86_64.rpm
SRPMS
squid-2.5.STABLE3-6.3E.src.rpm
i386
squid-2.5.STABLE3-6.3E.i386.rpm
ia64
squid-2.5.STABLE3-6.3E.ia64.rpm
ppc
squid-2.5.STABLE3-6.3E.ppc.rpm
ppc64
squid-2.5.STABLE3-6.3E.ppc64.rpm
s390
squid-2.5.STABLE3-6.3E.s390.rpm
s390x
squid-2.5.STABLE3-6.3E.s390x.rpm
https://rhn.redhat.com/
Red Hat Enterprise Linux ES (v. 3)
AMD64
squid-2.5.STABLE3-6.3E.x86_64.rpm
SRPMS
squid-2.5.STABLE3-6.3E.src.rpm
i386
squid-2.5.STABLE3-6.3E.i386.rpm
ia64
squid-2.5.STABLE3-6.3E.ia64.rpm
https://rhn.redhat.com/
Red Hat Enterprise Linux WS (v. 3)
AMD64
squid-2.5.STABLE3-6.3E.x86_64.rpm
SRPMS
squid-2.5.STABLE3-6.3E.src.rpm
i386
squid-2.5.STABLE3-6.3E.i386.rpm
ia64
squid-2.5.STABLE3-6.3E.ia64.rpm
https://rhn.redhat.com/
SuSE Linux
SuSE-9.1
i386
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/squid-2.5.STABLE5-42.9.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/squid-2.5.STABLE5-42.9.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/squid-2.5.STABLE5-42.9.src.rpm
Opteron x86_64
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/squid-2.5.STABLE5-42.9.x86_64.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/squid-2.5.STABLE5-42.9.x86_64.patch.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/squid-2.5.STABLE5-42.9.src.rpm
SuSE-9.0
i386
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/squid-2.5.STABLE3-110.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/squid-2.5.STABLE3-110.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/squid-2.5.STABLE3-110.src.rpm
Opteron x86_64
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/squid-2.5.STABLE3-110.x86_64.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/squid-2.5.STABLE3-110.x86_64.patch.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/squid-2.5.STABLE3-110.src.rpm
SuSE-8.2
i386
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/squid-2.5.STABLE1-98.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/squid-2.5.STABLE1-98.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/squid-2.5.STABLE1-98.src.rpm
SuSE-8.0
i386
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/squid-2.4.STABLE6-9.i386.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/squid-2.4.STABLE6-9.i386.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/squid-2.4.STABLE6-9.src.rpm |
Identificadores estándar
|
Propiedad |
Valor |
CVE |
CAN-2004-0541 |
BID |
NULL |
Recursos adicionales
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iDEFENSE Security Advisory 06.08.04
http://www.idefense.com/application/poi/display?id=107&type=vulnerabilities&flashstatus=true
Mandrakesoft Security Advisory MDKSA-2004:059
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/SRPMS/squid-2.5.STABLE4-1.2.100mdk.src.rpm
Red Hat Security Advisory RHSA-2004:242-06
https://rhn.redhat.com/errata/RHSA-2004-242.html
SUSE Security Announcement SuSE-SA:2004:016
http://www.suse.de/de/security/2004_16_squid.html |