Vulnerability Bulletins |
Vulnerabilidad permite ataque replay sobre paquetes IPSec |
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Vulnerability classification |
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| Property | Value |
| Confidence level | Oficial |
| Impact | Integridad |
| 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 | IPSec / isakmpd |
Description |
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Se ha descubierto una vulnerabilidad en IPSec. La vulnerabilidad reside en que isakmpd, si actúa como contestador durante la negociación SA, crea SA con una ventana replay de tamaño 0 lo que provoca que se ejecute sin protección contra ataques replay. Un atacante remoto podría inyectar paquetes IPSec capturados que serian aceptados sin comprobar el contador de replay. |
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Solution |
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Actualización de software OpenBSD OpenBSD 3.8 ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/013_isakmpd.patch OpenBSD 3.9 ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/008_isakmpd.patch Debian Debian Linux 3.1 Source http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1.dsc http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1.diff.gz http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012.orig.tar.gz Alpha http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_alpha.deb AMD64 http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_amd64.deb ARM http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_arm.deb HP Precision http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_hppa.deb Intel IA-32 http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_i386.deb Intel IA-64 http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_ia64.deb Motorola 680x0 http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_m68k.deb Big endian MIPS http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_mips.deb Little endian MIPS http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_mipsel.deb PowerPC http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_powerpc.deb IBM S/390 http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_s390.deb Sun Sparc http://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_sparc.deb |
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Standar resources |
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| Property | Value |
| CVE | CVE-2006-4436 |
| BID | 19712 |
Other resources |
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OpenBSD Security Advisory Aug 25, 2006 (008) http://www.openbsd.org/errata.html#isakmpd OpenBSD Security Advisory Aug 25, 2006 (013) http://www.openbsd.org/errata38.html#isakmpd Debian Security Advisory (DSA 1175-1) http://lists.debian.org/debian-security-announce/debian-security-announce-2006/msg00267.html |
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Version history |
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| Version | Comments | Date |
| 1.0 | Aviso emitido | 2006-08-28 |
| 1.1 | Aviso emitido por Debian (DSA 1175-1) | 2006-09-14 |