Boletines de Vulnerabilidades |
Problema de seguridad con permisos de grupo en NTP |
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Clasificación de la vulnerabilidad |
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| Propiedad | Valor |
| Nivel de Confianza | Oficial |
| Impacto | Aumento de privilegios |
| Dificultad | Experto |
| Requerimientos del atacante | Acceso remoto con cuenta |
Información sobre el sistema |
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| Propiedad | Valor |
| Fabricant afectat | GNU/Linux |
| Software afectado | ntp |
Descripción |
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Se ha descubierto una vulnerabilidad en ntp. La vulnerabilidad se debe a un error al tratar la opción "-u" desde linea de comandos cuando se asigna el grupo como cadena y no como gid. Este fallo hace que ntp se ejecute con los permisos del gid del usuario en vez de gid del grupo. |
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Solución |
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Actualización de software Debian Linux Debian Linux 3.1 Source http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1.dsc http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1.diff.gz http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable.orig.tar.gz Architecture independent http://security.debian.org/pool/updates/main/n/ntp/ntp-doc_4.2.0a+stable-2sarge1_all.deb Alpha http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_alpha.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_alpha.deb AMD64 http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_amd64.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_amd64.deb ARM http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_arm.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_arm.deb Intel IA-32 http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_i386.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_i386.deb Intel IA-64 http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_ia64.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_ia64.deb HP Precision http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_hppa.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_hppa.deb Motorola 680x0 http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_m68k.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_m68k.deb Big endian MIPS http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_mips.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_mips.deb Little endian MIPS http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_mipsel.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_mipsel.deb PowerPC http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_powerpc.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_powerpc.deb IBM S/390 http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_s390.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_s390.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_s390.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_s390.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_s390.deb Sun Sparc http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.0a+stable-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.0a+stable-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-server_4.2.0a+stable-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.0a+stable-2sarge1_sparc.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.0a+stable-2sarge1_sparc.deb Mandriva Linux Mandrivalinux LE2005 x86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/ntp-4.2.0-18.1.102mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/ntp-client-4.2.0-18.1.102mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/SRPMS/ntp-4.2.0-18.1.102mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/ntp-4.2.0-18.1.102mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/ntp-client-4.2.0-18.1.102mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/SRPMS/ntp-4.2.0-18.1.102mdk.src.rpm NetBSD NetBSD-current <= 2005-10-13 NetBSD 2.* <= 2005-11-01 NetBSD 1.6.* <= 2005-11-01 ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-daily/ |
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Identificadores estándar |
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| Propiedad | Valor |
| CVE | CAN-2005-2496 |
| BID | |
Recursos adicionales |
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Debian Security Advisory DSA 801-1 http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00191.html Mandriva Security Advisories MDKSA-2005:156 http://www.mandriva.com/security/advisories?name=MDKSA-2005:156 NetBSD Security Advisory (2005-011) ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2005-011.txt.asc |
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Histórico de versiones |
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| Versión | Comentario | Data |
| 1.0 | Aviso emitido | 2005-09-06 |
| 1.1 | Aviso emitido por Mandriva (MDKSA-2005:156) | 2005-09-09 |
| 1.2 | Aviso emitido por NetBSD (2005-011) | 2005-11-04 |