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Category:   Application (Generic)  >   BIND Vendors:   ISC (Internet Software Consortium)
(HP Issues Patches for Tru64) BIND Generates Predictable Query IDs That May Facilitate Cache Poisoning Attacks
SecurityTracker Alert ID:  1018638
SecurityTracker URL:  http://securitytracker.com/id/1018638
CVE Reference:   CVE-2007-2926   (Links to External Site)
Date:  Aug 31 2007
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in BIND. A remote user can conduct cache poisoning attacks.

The system generates query IDs that have a 1 out of 8 chance of being guessed for half of the query IDs. A remote user may be able to exploit this to conduct cache poisoning attacks.

Only outgoing queries are affected.

Amit Klein from Trusteer (www.trusteer.com) discovered this vulnerability.

Impact:   A remote user can conduct cache poisoning attacks.
Solution:   HP has issued the following patch kits [quoted].

HP Tru64 UNIX v 5.1B-4
Prerequisite: HP Tru64 UNIX v 5.1B-4 PK6 (BL27)
Name: T64KIT1001268-V51BB27-ES-20070806.tar
Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001268-V51BB27-ES-20070806

HP Tru64 UNIX v 5.1B-3
Prerequisite: HP Tru64 UNIX v 5.1B-3 PK5 (BL26)
Name: T64KIT1001273-V51BB26-ES-20070809.tar
Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001273-V51BB26-ES-20070809

HP Internet Express for Tru64 UNIX v 6.6
Note: Customers who use IX v 6.6 running BIND should install the HP Tru64 UNIX ERP kit appropriate for their supported operating system version

The fix is planned for inclusion in HP Tru64 UNIX v 5.1B-5 and HP Internet Express for Tru64 UNIX v 6.7.

The HP advisory is available at:

https://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c01154600

Vendor URL:  www.isc.org/ (Links to External Site)
Cause:   Randomization error
Underlying OS:  UNIX (Tru64)
Underlying OS Comments:  5.1B-3, 5.1B-4

Message History:   This archive entry is a follow-up to the message listed below.
Jul 24 2007 BIND Generates Predictable Query IDs That May Facilitate Cache Poisoning Attacks



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