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   gorani
   ¾È³çÇϼ¼¿ä Æ۹̼ǰøºÎÇÏ°í ÀÖ½À´Ï´Ù.

http://www.hackerschool.org/HS_Boards/zboard.php?id=QNA_system&no=1556 [º¹»ç]


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level1 ¿¡¼­ level2 uid ±ÇÇÑÀ» ¾òÀºÈÄ¿¡.

my-pass ¸¦ ÀÔ·ÂÇؼ­ ºñ¹Ð¹øÈ£¸¦ ¾Ë¾Æ³»¼­ ´ÙÀ½ ·¹º§·Î °¡´Â Çü½ÄÀÌ´øµ¥

my-pass´Â ½ÇÁ¦ Á¸ÀçÇÏ´Â ¸í·É¾î°¡ ¾Æ´Ï¶ó°í µé¾ú½À´Ï´Ù.


±×·¸´Ù¸é ½ÇÁ¦·Î´Â ¾î¶»°Ô uid ¸¦ ¾òÀº ÈÄ ¾ÏÈ£¸¦ ¾Ë¾Æ³»³ª¿ä ?

  Hit : 2775     Date : 2011/12/31 05:17



    
havu ÀÌ¹Ì ÀúÀåµÈ Æнº¿öµå¸¦ Ãâ·ÂÇÏ´Â°Í °°½À´Ï´Ù.

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>

#define MAXLEVEL 3

char *uid_pass[MAXLEVEL] =
{
"level1 password",
"level2 password",
"level3 password"
};

int main(void)
{
int i = 0;
uid_t init_uid = 3001, my_uid = 0;

my_uid = getuid();
if((i = (my_uid%init_uid)) > MAXLEVEL) {
fprintf(stderr, "illegal uid.\n");
exit(EXIT_FAILURE);
} else {
fprintf(stdout, "%s\n", uid_pass[i]);
}

exit(EXIT_SUCCESS);
}
Âü°í.
2011/12/31  
phpmyadmin À­ºÐ ¸»¾¸´ë·Î FTZ¿¡¼± ÄÚµùÇؼ­ ÀúÀåÇÑ Æнº¿öµå¸¦ ±×´ë·Î Ãâ·ÂÇÕ´Ï´Ù.

FTZ³ª FTZ¿Í À¯»çÇÑ ¸ðÀÇ ÇØÅ·¼­¹ö¿¡¼­ º¸Åë my-pass ¸í·É¾î¸¦ Á¦°øÇÕ´Ï´Ù.
FTZÀÇ °æ¿ì¿£ /bin µð·ºÅ丮¿¡ µé¾îÀִµ¥ °£´ÜÇÑ ¼Ò½º´Â ÀÌ·¯ÇÕ´Ï´Ù.

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int main(){

int i,a;

i = geteuid();
a = getuid();
system("clear");

if( i == 3001 ) printf("\nLevel1 Password is \"ºí¶óºí¶óºí¶ó\".\n\n");
if( i == 3002 ) printf("\nLevel2 Password is \"ºí¶óºí¶óºí¶ó\".\n\n");
....
}
2012/01/01  
1494   ¾îÁ¦´Â.. Çΰø°Ý.. ¿À´ÃÀº ¾ÆÀÌÇÇ ¾Ë¾Æ³»±â..[2]     ¼Ò¶ó±º
02/25 8521
1493     ¾î ÀÌ ´äº¯Àº....     idl0521
11/23 3321
1492   ¾È³çÇϼ¼¿© ¸®¹ö½ÌÇÏ°í Àִµ¥..[3]     Z2ong2
08/04 3214
1491   ¾È³çÇϼ¼¿ä~¿À¹öÇ÷οì NOP ¶§¹®¿¡ Áú¹®Á»^^[3]     pcmodel36
05/18 3549
1490   ¾È³çÇϼ¼¿ä^^...Áú¹®¿ä;;[2]     dlatpgh
01/15 3238
1489   ¾È³çÇϼ¼¿ä^^ Ãʺ¸°¡ Áú¹®´øÁý´Ï´Ù~![6]     rustynail72
07/07 3297
1488   ¾È³çÇϼ¼¿ä^^[2]     paille
09/14 3632
1487   ¾È³çÇϼ¼¿ä..µµ½º °ø°Ý¿¡ ´ëÇؼ­..±Ã±ÝÇÑ°Ô À־¿ä.[4]     kopaja413
03/23 3367
1486   ¾È³çÇϼ¼¿ä. ¼Ò½º Ãë¾àÇÑ »çÀÌÆ®¿¡ ´ëÇØ ¹®Àǵ帳´Ï´Ù     Âä±¹³ðÇØÅ·ÇÏÀÚ
08/23 3607
1485   ¾È³çÇϼ¼¿ä, ºÐ³ë·Î ºÎ±ÛºÎ±Û ²ú°í À־ ŸÀÚ°¡ ³¯¾Æ°¥ °Í °°³×¿ä-_-;[6]     bsh4507
08/25 4098
1484   ¾È³çÇϼ¼¿ä! ¹öÆÛ ¿À¹öÇÃ·Î¿ì °­Á Ȱ¼ºÈ­ Áú¹®µå¸³´Ï´Ù.[3]     yownsgur
10/01 3242
1483   ¾È³çÇϼ¼¿ä ½Ã½ºÅÛÇØÅ·¿¡ °ü½ÉÀÌÀÖ´Â ÇлýÀÔ´Ï´Ù[4]     wnstjr149
11/27 3211
1482   ¾È³çÇϼ¼¿ä ³Ýº¿¶«¿¡ ±×·¯´Âµ¥;[4]     ¿µ·Ï0226
02/01 4653
1481   ¾È³çÇϼ¼¿ä ³Ý¹ö½º¿¡´ëÇØ ±Ã±ÝÇÑ°Ô»ý°Ü¼­¿ä[4]     ¿ÀÇÇÄÉÀÌ°øÀ°
01/21 4306
  ¾È³çÇϼ¼¿ä Æ۹̼ǰøºÎÇÏ°í ÀÖ½À´Ï´Ù.[2]     gorani
12/31 2774
1479   ¾È³çÇϼ¼¿ä FTZ Level4 °ü·Ã Áú¹®µå¸³´Ï´Ù.[2]     Dork
01/09 3355
1478   ¾È³çÇϼ¼¿ä Eggshell¿¡ ´ëÇØ Áú¹® ÀÖ½À´Ï´Ù.[1]     Dork
03/24 2436
1477   ¾È³çÇϼ¼¿ä ÇØÅ·¿¡ °ü·ÃµÈ ÇÁ·ÎÁ§Æ®¸¦ ÇÏ°í½Í½À´Ï´Ù.     kespy7
11/17 2821
1476   ¾È³çÇϼ¼¿ä ÇØÅ·ÇÏ°í ½Í½À´Ï´Ù[6]     sunsunsus
08/10 5526
1475   ¾È³çÇϼ¼¿ä ÇØÅ· °øºÎ ÇÏ´Â Ãʺ¸Àε¥ Áú¹®ÀÌ ÀÖ½À´Ï´Ù.     taesaja111
12/31 2958
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