ELF x86 - Format string bug basic 1

15 Points  

... or how to read through the stack

Author

Lu33Y,  

Level  Difficulty

Validations

4195 Challengers 5%

Note  Notation

1
2
3
4
5
240 Votes
To reach this part of the site please login

Solution 4 Solutions

Display solutions Submit a solution

Challenge Results Challenge Results

Pseudo Challenge Lang date
pewz0r   ELF x86 - Format string bug basic 1 en 15 July 2018 at 20:00
purelledhand   ELF x86 - Format string bug basic 1 en 15 July 2018 at 17:34
LearnCode   ELF x86 - Format string bug basic 1 en 15 July 2018 at 14:34
YoungHerO   ELF x86 - Format string bug basic 1 en 15 July 2018 at 12:37
corpsfini   ELF x86 - Format string bug basic 1 fr 15 July 2018 at 10:05
liojoil   ELF x86 - Format string bug basic 1 en 15 July 2018 at 09:57
Aramya   ELF x86 - Format string bug basic 1 fr 14 July 2018 at 22:41
Cryston   ELF x86 - Format string bug basic 1 en 14 July 2018 at 20:36
feelsgood   ELF x86 - Format string bug basic 1 en 14 July 2018 at 17:40
Entropy   ELF x86 - Format string bug basic 1 en 14 July 2018 at 17:34

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% 7938 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 7% 6117 10 Lyes 9
pas_valide ELF x86 - Format string bug basic 1 5% 4195 15 Lu33Y 4
pas_valide ELF x64 - Stack buffer overflow - basic 4% 2971 20 Arod 4
pas_valide ELF x86 - Format string bug basic 2 3% 2011 20 Lyes 5
pas_valide ELF x86 - Race condition 4% 2963 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 347 25 pickle 5
pas_valide ELF x86 - Stack buffer overflow basic 3 3% 2022 25 Lyes 2
pas_valide ELF ARM - Stack Spraying 1% 80 30 pickle 3
pas_valide ELF x86 - BSS buffer overflow 3% 2460 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1615 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1111 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 559 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 140 40 pickle 2
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 407 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 61 50 sbrk 1
pas_valide ELF x86 - Bug Hunting - Several issues 1% 26 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 2% 1256 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow basic 5 2% 1157 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 534 55 Arod 3
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 448 60 Arod 2
pas_valide ELF ARM - Race condition 1% 51 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 43 70 sbrk 1
pas_valide ELF x86 - Remote BSS buffer overflow 1% 566 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 678 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 109 80 franb 0
pas_valide ELF x86 - Blind remote format string bug 1% 167 80 Lyes 0
pas_valide LinKern ARM - vulnerable syscall 1% 45 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 208 85 franb 1
pas_valide LinKern x86 - Null pointer dereference 1% 208 90 franb 0
pas_valide LinKern x64 - Race condition 1% 141 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 17 100 pickle 2
pas_valide ELF x86 - Hardened binary 1 1% 419 100 sm0k 2
pas_valide ELF x86 - Hardened binary 2 1% 331 100 sm0k 2
pas_valide ELF x86 - Hardened binary 3 1% 215 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 233 100 sm0k 2
pas_valide LinKern x64 - reentrant code 1% 80 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 31 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 142 105 Arod 2
pas_valide LinKern x86 - basic ROP 1% 111 110 franb 1
pas_valide ELF ARM - Format String bug 1% 38 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 35 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 27 110 laxa 1
pas_valide ELF x64 - Off-by-one bug 1% 65 110 NeedToLearn 0
pas_valide ELF x86 - Hardened binary 5 1% 167 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 17 110 pickle 0
pas_valide ELF ARM - Heap Off-by-One 1% 26 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 79 115 Tosh 1
pas_valide ELF x86 - Hardened binary 6 1% 159 115 sm0k 1
pas_valide ELF x86 - Hardened binary 7 1% 127 115 Tosh 2
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 59 115 franb 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 17 120 pickle 0
pas_valide ELF ARM - Heap Overflow 1% 18 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 21 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 38 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 47 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 58 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 17 135 franb 1