Vulnerability Bulletins |
Salto de la autenticación en Asterisk Open Source |
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Vulnerability classification |
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| Property | Value |
| Confidence level | Oficial |
| Impact | Obtener acceso |
| Dificulty | Experto |
| Required attacker level | Acceso remoto sin cuenta a un servicio estandar |
System information |
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| Property | Value |
| Affected manufacturer | GNU/Linux |
| Affected software |
Asterisk Open Source 1.2.x < 1.2.26 Asterisk Open Source 1.4.x < 1.4.16 Asterisk Business Edition B.x.x < B.2.3.6 Asterisk Business Edition C.x.x < C.1.0-beta8 |
Description |
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Se ha descubierto una vulnerabilidad en Asterisk Open Source 1.2.x en versiones anteriores a la 1.2.26 y 1.4.x en versiones anteriores a la 1.4.16, y Business Edition B.x.x en versiones anteriores a la B.2.3.6 y C.x.x en versiones anteriores a la C.1.0-beta8. La vulnerabilidad reside en un error en la autenticación al no comprobar la dirección IP cuando se procesa una autenticación "realtime" con base de datos y autenticación basada en host. Un atacante remoto podría saltarse la autenticación mediante un nombre de usuario válido y que no utilice contraseña. |
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Solution |
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Actualización de software Suse Linux Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse Linux. Debian (DSA-1525-1) Debian Linux 4.0 Source http://security.debian.org/pool/updates/main/a/asterisk/asterisk_1.2.13~dfsg-2etch3.diff.gz http://security.debian.org/pool/updates/main/a/asterisk/asterisk_1.2.13~dfsg.orig.tar.gz http://security.debian.org/pool/updates/main/a/asterisk/asterisk_1.2.13~dfsg-2etch3.dsc Arquitectura independiente http://security.debian.org/pool/updates/main/a/asterisk/asterisk-doc_1.2.13~dfsg-2etch3_all.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-sounds-main_1.2.13~dfsg-2etch3_all.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-config_1.2.13~dfsg-2etch3_all.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-web-vmail_1.2.13~dfsg-2etch3_all.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-dev_1.2.13~dfsg-2etch3_all.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk_1.2.13~dfsg-2etch3_all.deb alpha (DEC Alpha) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_alpha.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_alpha.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_amd64.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_amd64.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_arm.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_arm.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_arm.deb hppa (HP PA RISC) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_hppa.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_hppa.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_hppa.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_i386.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_i386.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_ia64.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_ia64.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_mips.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_mips.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_mipsel.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_mipsel.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_powerpc.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_powerpc.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/a/asterisk/asterisk-classic_1.2.13~dfsg-2etch3_s390.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-bristuff_1.2.13~dfsg-2etch3_s390.deb http://security.debian.org/pool/updates/main/a/asterisk/asterisk-h323_1.2.13~dfsg-2etch3_s390.deb |
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Standar resources |
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| Property | Value |
| CVE | CVE-2007-6430 |
| BID | 26928 |
Other resources |
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SUSE Security Advisory (SUSE-SR:2008:005) http://www.novell.com/linux/security/advisories/2008_5_sr.html Debian Security Advisory (DSA-1525-1) http://lists.debian.org/debian-security-announce/2008/msg00093.html |
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Version history |
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| Version | Comments | Date |
| 1.0 | Aviso emitido | 2008-03-10 |
| 1.1 | Aviso emitido por Debian (DSA-1525-1) | 2008-03-25 |