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Blue Coat ProxySG DNS Cache Poisoning Vulnerability
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Secunia Advisory:
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SA31151
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Release Date:
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2008-07-17
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Last Update:
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2008-07-23
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Popularity:
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2,969 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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Partial Fix
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| OS: | Blue Coat Security Gateway OS (SGOS) 4.x
Blue Coat Security Gateway OS (SGOS) 5.x
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| CVE reference: | CVE-2008-1447
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Description:
Blue Coat has acknowledged a vulnerability in Blue Coat ProxySG, which can be exploited by malicious people to poison the DNS cache.
The vulnerability is caused due to the product not sufficiently randomising the DNS transaction ID and the source port number, which can be exploited to poison the DNS cache.
Solution:
SGOS 4.x:
Update to version 4.2.8.6.
SGOS 5.x:
Reportedly, this vulnerability will be fixed in version 5.2.4.3.
Provided and/or discovered by:
Dan Kaminsky
Changelog:
2008-07-23: Updated "Solution" section with information about version 4.2.8.6.
Original Advisory:
http://www.bluecoat.com/support/security-advisories/dns_cache_poisoning
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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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