int(4522)

Boletines de Vulnerabilidades

Ejecución de comandos arbitrarios en Curl

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 Curl < 7.19.3

Descripción
Se ha descubierto una vulnerabilidaden Curl. La vulnerabilidad reside en un error en la implementación de la redirección cuando "CURLOPT_FOLLOWLOCATION" está activado.

Un atacante remoto podría ejecutar comandos arbitrarios mediante una redirección a "scp: URL".

Solución


Actualización de software

Debian (DSA-1738-1)

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2.dsc
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5.orig.tar.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2.diff.gz
Arquitectura independiente:
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.15.5-1etch2_all.deb
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_arm.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_mips.deb
mipsel (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_mipsel.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_powerpc.deb
s390 (IBM S/390)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_s390.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch2_sparc.deb

Debian (DSA-1738-1)

Debian Linux 5.0
Source
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2.diff.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2.dsc
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2.orig.tar.gz
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_amd64.deb
armel (ARM EABI)
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_armel.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_armel.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_mips.deb
mipsel (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_mipsel.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_powerpc.deb
s390 (IBM S/390)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_s390.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny2_sparc.deb

Suse Linux
Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse
Linux.

Red Hat (RHSA-2009:0341-5)
RHEL Desktop Workstation (v. 5 cliente)
Red Hat Desktop (v. 3)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux (v. 5 servidor)
Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux Desktop (v. 5 cliente)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor
https://rhn.redhat.com/

Identificadores estándar
Propiedad Valor
CVE CVE-2009-0037
BID 33962

Recursos adicionales
Debian Security Advisory (DSA-1738-1)
http://lists.debian.org/debian-security-announce/2009/msg00048.html

SUSE Security Advisory (SUSE-SR:2009:006)
http://www.novell.com/linux/security/advisories/2009_6_sr.html

Red Hat Security Advisory (RHSA-2009:0341-5)
https://rhn.redhat.com/errata/RHSA-2009-0341.html

Histórico de versiones
Versión Comentario Fecha
1.0 Aviso emitido 2009-03-12
1.1 Aviso emitido por Red Hat (RHSA-2009:0341-5) 2009-03-20

Miembros de

CERT
FIRST
TF-CSIRT
EGC Group
UE
Red Nacional de SOC
Foro Nacional de Ciberseguridad
CSIRT.es
Ministerio de Defensa
CNI
CCN
CCN-CERT