ELF x86 - Format string bug basic 1

15 Points  

... or how to read through the stack

Author

Lu33Y,  

Level  Difficulty

Validations

3889 Challengers 5%

Note  Notation

1
2
3
4
5
223 Votes
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Solution 4 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Phaeraun   ELF x86 - Format string bug basic 1 en 23 April 2018 at 17:16
quantum   ELF x86 - Format string bug basic 1 en 23 April 2018 at 09:09
Daemontoolz62   ELF x86 - Format string bug basic 1 fr 23 April 2018 at 08:15
g3chantr   ELF x86 - Format string bug basic 1 fr 22 April 2018 at 22:13
DrStache   ELF x86 - Format string bug basic 1 fr 22 April 2018 at 21:18
olag18   ELF x86 - Format string bug basic 1 en 22 April 2018 at 15:46
vcoyote   ELF x86 - Format string bug basic 1 fr 22 April 2018 at 15:14
ifUKaan   ELF x86 - Format string bug basic 1 fr 22 April 2018 at 00:22
Tovuli1258   ELF x86 - Format string bug basic 1 fr 21 April 2018 at 17:31
R0oma1n   ELF x86 - Format string bug basic 1 fr 21 April 2018 at 00:02

Challenges associated with this section 58 Challenges

Results Challenge's Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide ELF x86 - Stack buffer overflow basic 1 9% 7325 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 7% 5643 10 Lyes 8
pas_valide ELF x86 - Format string bug basic 1 5% 3889 15 Lu33Y 4
pas_valide ELF x64 - Stack buffer overflow - basic 4% 2732 20 Arod 4
pas_valide ELF x86 - Format string bug basic 2 3% 1853 20 Lyes 5
pas_valide ELF x86 - Race condition 4% 2796 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 303 25 pickle 5
pas_valide ELF x86 - Stack buffer overflow basic 3 3% 1887 25 Lyes 2
pas_valide ELF ARM - Stack Spraying 1% 72 30 pickle 3
pas_valide ELF x86 - BSS buffer overflow 3% 2358 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1542 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1028 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 533 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 132 40 pickle 2
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 393 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 53 50 sbrk 1
pas_valide ELF x86 - Bug Hunting - Several issues 1% 22 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 2% 1214 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow basic 5 2% 1106 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 501 55 Arod 3
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 430 60 Arod 2
pas_valide ELF ARM - Race condition 1% 45 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 39 70 sbrk 1
pas_valide ELF x86 - Remote BSS buffer overflow 1% 548 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 660 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 98 80 franb 0
pas_valide ELF x86 - Blind remote format string bug 1% 164 80 Lyes 0
pas_valide LinKern ARM - vulnerable syscall 1% 44 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 204 85 franb 1
pas_valide LinKern x86 - Null pointer dereference 1% 204 90 franb 0
pas_valide LinKern x64 - Race condition 1% 136 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 14 100 pickle 2
pas_valide ELF x86 - Hardened binary 1 1% 411 100 sm0k 2
pas_valide ELF x86 - Hardened binary 2 1% 320 100 sm0k 2
pas_valide ELF x86 - Hardened binary 3 1% 208 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 228 100 sm0k 2
pas_valide LinKern x64 - reentrant code 1% 78 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 30 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 131 105 Arod 2
pas_valide LinKern x86 - basic ROP 1% 104 110 franb 1
pas_valide ELF ARM - Format String bug 1% 38 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 34 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 25 110 laxa 1
pas_valide ELF x64 - Off-by-one bug 1% 59 110 NeedToLearn 0
pas_valide ELF x86 - Hardened binary 5 1% 156 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 15 110 pickle 0
pas_valide ELF ARM - Heap Off-by-One 1% 24 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 73 115 Tosh 1
pas_valide ELF x86 - Hardened binary 6 1% 148 115 sm0k 1
pas_valide ELF x86 - Hardened binary 7 1% 119 115 Tosh 2
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 52 115 franb 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 16 120 pickle 0
pas_valide ELF ARM - Heap Overflow 1% 18 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 20 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 36 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 44 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 56 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 13 135 franb 0