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Motorola netOctopus Agent nantsys.sys Privilege Escalation
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Secunia Advisory:
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SA28366
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Release Date:
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2008-01-08
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Workaround
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| Software: | Motorola netOctopus 5.x
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| | CVE reference: | CVE-2007-5761 (Secunia mirror)
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Description:
A vulnerability has been reported in Motorola netOctopus, which can be exploited by malicious, local users to gain escalated privileges.
The problem is that the netOctopus Agent installs the nantsys.sys device driver, which exposes the \\.\NantSys device interface that is writable by all users. This can be exploited to execute code with kernel privileges e.g. by modifying SYSENTER_EIP_MSR.
The vulnerability is reported in nantsys.sys version 5.0.0.115 included in netOctopus version 5.1.2 build 1011. Other versions may also be affected.
Solution:
The vendor has provided a script, which removes the driver from the system.
http://www.netopia.com/support/software/technotes/netoctopus/removeNantsys.vbs
Provided and/or discovered by:
Discovered by Stephen Fewer of Harmony Security and reported via iDefense Labs.
Original Advisory:
Motorola:
http://www.netopia.com/support/softwa...topus/Removing_the_nantsys_Driver.pdf
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=636
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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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