22036, 7/1102 ȸ¿ø°¡ÀÔ  ·Î±×ÀΠ 
   ocal
   pwnable.kr starcraft ¸¶¹«¸®¸¦ ¾î¶»°Ô ÇØ¾ß ÇÒ±î¿ä?

http://www.hackerschool.org/HS_Boards/zboard.php?id=Free_Board&no=37361 [º¹»ç]


pwnable.kr starcraft ¹®Á¦¿¡ °üÇÑ Áú¹®ÀÔ´Ï´Ù.

ÀÏ´Ü checksec·Î °Ë»çµÇ´Â º¸È£±â¹ýÀº ´Ù °É·ÁÀÖ½À´Ï´Ù.(RELRO, Canary, NX, PIE)

ÀÌ·± »óȲ¿¡¼­ Á¤¼®Àº libc base address¸¦ µý ÈÄ¿¡ rip hijackÀ» Çؼ­ ¸ÅÁ÷ °¡Á¬À» ³ÖÀ¸¸é µÇ°ÚÁö¿ä. ±×·¡¼­ ±×·¸°Ô Çߴµ¥...

libc base leak, rip hijack, one gadgetÀ» Á¶ÇÕÇÏ·Á°í ¼¼°³ ´Ù ¾Ë¾Æ³Â½À´Ï´Ù.

±×·±µ¥ one gadgetÀÇ constraint¸¦ ¸¸Á·À» ¾ÈÇϳ׿ä. ¾î¶»°Ô ÇØ¾ß ÇÒÁö ¸ð¸£°Ú½À´Ï´Ù.

Ȥ½Ã ÀÌ ¹®Á¦ Ǫ¼Ì°Å³ª ¾Æ´Ï¸é ¾ÆÀ̵ð¾î ÀÖÀ¸½Å ºÐ Á¶¾ðÀ» Á» ÇØÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù.

(cf) °¡Á¬ÀÇ Á¦ÇÑ »çÇ×Àº À̸¦Å׸é ÀÌ·±°Ì´Ï´Ù.
(ex) rax == NULL
(ex) [rsp+0x30] == NULL

  Hit : 4622     Date : 2020/06/26 03:21



    
ocal Ç®¾ú½À´Ï´Ù... 2020/06/27  
jason102938 Çæ µü ¸·È÷½Å °÷¿¡¼­ Àúµµ ¸·Çû´Âµ¥,,, one gadgetÀÇ Á¦¾à»çÇ×À» ¸¸Á·¸øÇؼ­ ´Ù¸¥ ºÎºÐÀ» º¸°í ÀÖ½À´Ï´Ù.
Ȥ½Ã ¾î¶»°Ô Ǫ¼Ì´ÂÁö Á¶¾ðÁ» ÇØÁֽǼö ÀÖÀ»±î¿ä?
2021/06/03  
ocal ¾ÈµÇ¸é µÇ°Ô ÇØ¾ß ÇÕ´Ï´Ù 2022/02/08  
21916   ÇØÅ·°ú¿Ü¼±»ý´Ô ã½À´Ï´Ù.!     Curious
09/01 2376
21915   ÇØÅ· º¸¾È °ü·Ã °ú¿Ü¸¦ ÁøÇàÇÕ´Ï´Ù.     bluewindsoul
08/31 2368
21914   ÇÁ·Î±×·¡¹Ö ÂÊ °ú¿ÜÇØÁÖ½Ç ½º½Â´Ô ã½À´Ï´Ù     wodnjs12
08/31 2035
21913   ÇØÅ· °ú¿Ü ¼±»ý´Ô ¾Ë¾ÆºÁ¿ä[5]     gns296
08/30 2394
21912   ÇØÅ· °ú¿Ü ÇØÁֽǺРã½À´Ï´Ù[1]     tkdrn22
08/25 2233
21911   ¾È³çÇϼ¼¿ä (ºÎ»ê)¿¡¼­ ½ºÅ͵ð ¸ðÁýÇÕ´Ï´Ù     fkdlzm34
08/19 2138
21910   ÇØÅ· °ú¿Ü¸¦ ÁøÇàÇغ¼±î ÇÕ´Ï´Ù.     jsi606897
08/17 2810
21909   PowerPEview(peview ¾÷±×·¹ÀÌµå ¹öÀü)     jwkzzangs
08/11 2808
21908   ¾È³çÇϼ¼¿ä Ȥ½Ã ¼­¿ïÂÊ À¥ÇØÅ·°ü·Ã ¿ÀÇÁ¶óÀΰú¿ÜÀÕ³ª¿ä?[2]     coco123
07/28 2551
21907   Frida ÀÌ¿ëÇÑ ÈÄÅ· ½Ç½À °ú¿Ü¼±»ý´Ô ã½À´Ï´Ù.[1]     kumzoo
07/18 2499
21906   ÇØÅ· ÀÔ¹®.[1]     limvamos
07/16 3228
21905   c¾ð¾î Æ÷ÀÎÅÍ[3]     limvamos
07/11 2738
21904   ¾È³çÇϼ¼¿ä~ÇØÅ·°øºÎ¿ÏÀüÃʺ¸ÀÚÀÔ´Ï´Ù ±Ã±ÝÇÑ°ÅÁ»°¡¸£ÃÄÁÖ¼¼¿ä~[2]     coco123
07/10 2830
21903   ÇØÄ¿Áî.[2]     scube
06/19 3446
21902   ¾È³çÇϼ¼¿ä!À¥ ÇØÅ· °ú¿Ü¼±»ý´ÔÀ» ã½À´Ï´Ù ¤Ð     bettinn
06/17 3070
21901   ÄÁÅÃÇϽǺРã½À´Ï´Ù.     aiden01234
06/13 2970
21900 ºñ¹Ð±ÛÀÔ´Ï´Ù  ½º½Â´Ô±¸ÇÏ°íÀÖ½À´Ï´Ù µµ¿òÀ»ÁÖ¼¼¿ä     JGX004
06/07 3
21899   ÇØÅ· º¸¾È °ü·Ã °ú¿Ü¸¦ ÁøÇàÇÕ´Ï´Ù.[1]     bluewindsoul
05/29 3009
21898   ÇØÅ·°ú¿Ü¼±»ý´ÔÀÖÀ¸½Å°¡¿ä[1]     dfdrdc1211
05/12 2848
21897   ÇÁ·ÎÁ§Æ® °°ÀÌ ÇÒ µ¿¹« ¸ðÁýÇÕ´Ï´Ù.[2]     eonion88
05/04 3300
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