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DHCP server can take over client
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Specially crafted DHCP servers can take control of a PC if the PC is running the DHCP client supplied by the Internet Systems Consortium (ISC) (dhclient). This is the default set-up in Ubuntu, BSD and many other Linux distributions. According to an ISC advisory, the vulnerability is based on a buffer overflow that allows attackers to inject arbitrary code into a system and execute it at root level. The buffer overflow can be triggered in the script_write_params method using excessively long server-supplied subnet masks.
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Sander_Marechal |
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Jul 16, 2009 11:03 AM |
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