Juniper JUNOS DNS Query Port Entropy Weakness Lets Remote Users Spoof the System
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SecurityTracker Alert ID: 1020449
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SecurityTracker URL: http://securitytracker.com/id?1020449
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CVE Reference: CVE-2008-1447
(Links to External Site)
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Date: Jul 9 2008
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Impact: Modification of system information
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Vendor Confirmed: Yes
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Description: A vulnerability was reported in JUNOS. A remote user can spoof the system.
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.
J-series routers running JUNOS Enhanced Services
Software (junos-jsr) built prior to May 23, 2008 are affected.
Juniper switching products running JUNOS Enhanced Switching Software
(junos-ex) built prior to May 23, 2008 are also affected.
Dan Kaminsky of IOActive reported this vulnerability.
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Impact: A remote user can spoof the DNS service, causing traffic to be redirected to arbitrary hosts.
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Solution: It is unclear if a fix is available or not.
The vendor's advisory is available at:
https://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2008-06-040&viewMode=view
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Vendor URL: www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2008-06-040&viewMode=view (Links to External Site)
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Cause: Randomization error
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Message History:
None.
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Source Message Contents
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Date: Tue, 8 Jul 2008 23:18:29 -0400
Subject: JUNOS
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http://www.kb.cert.org/vuls/id/MIMG-7DWR4Z
CVE-2008-1447
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