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Hello,<BR>
The present document aims to demonstrate a design weakness found in the handling of simply <BR>
linked lists used to register binary formats handled by Linux kernel, and affects all the kernel <BR>
families (2.0/2.2/2.4/2.6), allowing the insertion of infection modules in kernel­ space that can be <BR>
used by malicious users to create infection tools, for example rootkits.<BR>
<BR>
POC, details and proposed solution at:<BR>
English version: <A HREF="http://www.shellcode.com.ar/docz/binfmt-en.pdf">http://www.shellcode.com.ar/docz/binfmt-en.pdf</A><BR>
Spanish version: <A HREF="http://www.shellcode.com.ar/docz/binfmt-es.pdf">http://www.shellcode.com.ar/docz/binfmt-es.pdf</A><BR>
<BR>
regards,<BR>
--<BR>
SHELLCODE Security Research TEAM<BR>
<A HREF="mailto:GoodFellas@shellcode.com.ar">GoodFellas@shellcode.com.ar</A><BR>
<A HREF="http://www.shellcode.com.ar">http://www.shellcode.com.ar</A><BR>
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