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i just tested grsecurity. i installed debian and a vulnerable version of proftpd. i launched an exploit. worked. patched the latest kernel with grsec. and now the exploit doesnt work anymore. BUT . wouldnt just a the new kernel alone cause the exploit to fail? the exploit was only for debian sqzeeze and one special version of proftpd??

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Thinking you'll get interest if you post this over in security.stackexchange.com –  Rory Alsop Jan 31 '11 at 21:15

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up vote 1 down vote accepted

It did work!

didnt see it in the remote shell but directly on the server

http://webservsec.blogspot.com/2011/01/grsecurity-vs-proftpd-exploit.html

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