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Category:   OS (Other)  >   HPE NonStop Server Vendors:   HPE
(HP Issues Fix for HP NonStop Server) BIND DNS Query Port Entropy Weakness Lets Remote Users Spoof the System
SecurityTracker Alert ID:  1021659
SecurityTracker URL:  http://securitytracker.com/id/1021659
CVE Reference:   CVE-2008-1447   (Links to External Site)
Date:  Feb 3 2009
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in BIND. A remote user can spoof the system. HP NonStop Server is affected.

The domain name system (DNS) service does not use sufficiently random UDP sockets to process queries. A remote user can send specially crafted DNS queries and responses to the target service to spoof responses and insert records into the DNS cache. This may cause traffic to be redirected to arbitrary IP addresses specified by the remote user.

The vendor indicates that the vulnerability exists in the DNS protocol itself, rather than in any particular vendor's implementation.

Systems using BIND as a caching resolver are affected.

Some demonstration exploit code is available at:

http://www.caughq.org/exploits/CAU-EX-2008-0002.txt
http://www.caughq.org/exploits/CAU-EX-2008-0003.txt

Dan Kaminsky of IOActive reported this vulnerability.

Impact:   A remote user can spoof the DNS service, causing traffic to be redirected to arbitrary hosts.
Solution:   HP has issued a fix for HP NonStop Server.

On G-Series install the SPR T0685G06^AAC.

This SPR is usable with these RVUs: G06.24 G06.25 G06.26 G06.27.00 G06.28.00 G06.29.00 G06.30.00 G06.31.00 G06.32.00

Rerequisite SPRs: NONE
Superseded SPRs:: T0685AAA
Installation Impact: Minimal system impact

On H-Series and J-Series install the SPR T0685^AAD

This SPR is usable with these RVUs: All H-Series and J-Series RVUs

Rerequisite SPRs: NONE
Superseded SPRs:: T0685H01^AAB
Installation Impact: Minimal system impact

The HP advisory is available at:

http://www11.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c01662368

Cause:   Randomization error

Message History:   This archive entry is a follow-up to the message listed below.
Jul 8 2008 BIND DNS Query Port Entropy Weakness Lets Remote Users Spoof the System



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