SecurityTracker.com
Keep Track of the Latest Vulnerabilities
with SecurityTracker!
    Home    |    View Topics    |    Search    |    Contact Us    |    Help    |   

SecurityTracker
Archives


Your Ad Here
 
Click to Sign Up
Sign Up
Sign Up for Your FREE Weekly SecurityTracker E-mail Alert Summary
Instant Alerts
Buy our Premium Vulnerability Notification Service to receive customized, instant alerts
Affiliates
Put SecurityTracker Vulnerability Alerts on Your Web Site -- It's Free!
Partners
Become a Partner and License Our Database or Notification Service
Report a Bug
Report a vulnerability that you have found to SecurityTracker
bugs
@
securitytracker.com
Sign Up!





Category:  Device (Router/Bridge/Hub)  >  Cisco IOS Vendors:  Cisco
Cisco IOS DNS Query Port Entropy Weakness Lets Remote Users Spoof the System
SecurityTracker Alert ID:  1020440
SecurityTracker URL:  http://securitytracker.com/id?1020440
CVE Reference:  CVE-2008-1447   (Links to External Site)
Date:  Jul 8 2008
Impact:  Modification of system information
Fix Available:  Yes   Vendor Confirmed:  Yes  
Advisory:  Cisco Security Advisory
Description:  A vulnerability was reported in Cisco IOS and other Cisco products that provide DNS services. A remote user can spoof the system.

The domain name system (DNS) service does not use sufficiently random DNS transaction ID values and/or 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 on the target system to be redirected to arbitrary IP addresses specified by the remote user.

Cisco IOS devices that are configured as a DNS server are affected.

Cisco has assigned Cisco Bug ID CSCso81854 to this vulnerability.

Cisco Network Registrar, Cisco Application and Content Networking System (ACNS), and the Cisco Global Site Selector (GSS) products are also affected.
Impact:  A remote user can spoof the DNS service, causing traffic to be redirected to arbitrary hosts.
Solution:  The vendor has issued a fix.

A patch matrix is available in the vendor's advisory.

The vendor's advisory is available at:

http://www.cisco.com/warp/public/707/cisco-sa-20080708-dns.shtml
Vendor URL:  www.cisco.com/warp/public/707/cisco-sa-20080708-dns.shtml (Links to External Site)
Cause:  Randomization error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 8 2008 (Cisco Issues Advisory for Cisco Network Registrar) Cisco IOS DNS Query Port Entropy Weakness Lets Remote Users Spoof the System   (Cisco Systems Product Security Incident Response Team <psirt@cisco.com>)
Cisco plans to issue a release for Cisco Network Registrar.
Jul 8 2008 (Cisco Plans to Issue Fix for Cisco ACNS) Cisco IOS DNS Query Port Entropy Weakness Lets Remote Users Spoof the System   (Cisco Systems Product Security Incident Response Team <psirt@cisco.com>)
Cisco has released a fix for Cisco Application and Content Networking System.


 Source Message Contents
Date:  Tue, 8 Jul 2008 14:13:46 -0400
Subject:  Cisco IOS

 
 
http://www.cisco.com/warp/public/707/cisco-sa-20080708-dns.shtml
 
CVE-2008-1447


Go to the Top of This SecurityTracker Archive Page



Home   |    View Topics   |    Search   |    Contact Us   |    Help

Copyright 2007, SecurityGlobal.net LLC