Vulnerability Bulletins |
Envenenamiento de caches en ISC BIND |
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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 | Networking |
| Affected software | ISC BIND 8 < 8.4.7-P1 |
Description |
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Se ha encontrado una vulnerabilidad en ISC BIND 8 en las versiones anteriores a la 8.4.7-P1 en los algoritmos NSID_SHUFFLE_ONLY y NSID_USE_POOL PRNG. La vulnerabilidad reside al generar identificadores de petición DNS predecibles cuando se envian peticiones al exterior tales como mensajes NOTIFY. Un atacante remoto podría envenenar las cachés DNS. |
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Solution |
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Actualización de software NetBSD (NetBSD-SA2007-007) NetBSD-current / Update 2007-07-25 netBSD 4.0 / Update 2007-07-31 NetBSD 3.x / Update 2007-08-15 NetBSD 2.x / Update 2007-09-13 http://www.NetBSD.org/guide/en/chap-kernel.html Sun(103063) Solaris 8 / SPARC / patch 109326-20 Solaris 9 / SPARC / patch 112837-14 Solaris 8 / x86 / patch 109327-20 Solaris 9 / x86 / patch 114265-13 http://sunsolve.sun.com/pub-cgi/show.pl?target=patchpage IBM (3975) AIX 5.2.0 - APAR IZ05609 AIX 5.3.0 - APAR IZ05686 http://www.ibm.com/servers/eserver/support/unixservers/aixfixes.html |
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Standar resources |
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| Property | Value |
| CVE | CVE-2007-2930 |
| BID | |
Other resources |
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NetBSD Security Advisory (NetBSD-SA2007-007) ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2007-007.txt.asc Sun Alert Notification (103063) http://sunsolve.sun.com/search/document.do?assetkey=1-26-103063-1 IBM Security Advisory (3975) https://www14.software.ibm.com/webapp/set2/subscriptions/ijhifoe?mode=7&heading=AIX52&path=%2F200710%2FSECURITY%2F20071030%2Fdatafile095024&label=AIX+BIND+8+remote+DNS+cache+poisoning |
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Version history |
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| Version | Comments | Date |
| 1.0 | Aviso emitido | 2007-09-14 |
| 1.1 | Aviso emitido por Sun (103063) | 2007-09-19 |
| 1.2 | Aviso emitido por Sun (103063) | 2007-10-16 |
| 1.3 | Aviso emitido por IBM (3975) | 2007-10-31 |