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Cisco Products DNS Cache Poisoning Vulnerability
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Secunia Advisory:
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SA30979
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Release Date:
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2008-07-09
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Popularity:
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3,806 views
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Critical:
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Moderately critical
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Impact:
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Spoofing
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | Cisco IOS 12.x
Cisco IOS R12.x
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| Software: | Cisco Application and Content Networking System (ACNS)
Cisco CNS Network Registrar 6.x
Cisco Network Registrar (CNR) 7.x
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| CVE reference: | CVE-2008-1447
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Description:
A vulnerability has been reported in various Cisco products, which can be exploited by malicious people to poison the DNS cache.
The vulnerability is caused due to the DNS servers not sufficiently randomising the DNS transaction ID and the source port number, which can be exploited to poison the DNS cache.
The vulnerability is reported in the following products (please see the vendor's advisory for details).
* Cisco IOS Software
* Cisco Network Registrar
* Cisco Application and Content Networking System
NOTE: DNS Servers that are only authoritative or do not allow recursion are not affected.
Solution:
Update to fixed versions (please see vendor advisory for details).
Provided and/or discovered by:
The vendor credits Dan Kaminsky, IOActive.
Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20080708-dns.shtml
Other References:
US-CERT VU#800113:
http://www.kb.cert.org/vuls/id/800113
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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