ELF x86 - Format string bug basic 2

20 Points  

Or how to write what you want where you want in the stack

Author

Lyes,  

Level  Difficulty

Validations

2179 Challengers 3%

Note  Notation

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

Solution 5 Solutions

Display solutions Submit a solution

Challenge Results Challenge Results

Pseudo Challenge Lang date
bicklil   ELF x86 - Format string bug basic 2 fr 19 October 2018 at 12:35
gwel   ELF x86 - Format string bug basic 2 fr 18 October 2018 at 13:17
Noddy   ELF x86 - Format string bug basic 2 en 17 October 2018 at 21:18
gottbow   ELF x86 - Format string bug basic 2 en 17 October 2018 at 16:50
mrOlaf   ELF x86 - Format string bug basic 2 en 17 October 2018 at 15:01
trinhjjjjj   ELF x86 - Format string bug basic 2 en 17 October 2018 at 14:55
Tatiyk   ELF x86 - Format string bug basic 2 fr 17 October 2018 at 09:38
supertoto   ELF x86 - Format string bug basic 2 fr 16 October 2018 at 13:24
Dobioh   ELF x86 - Format string bug basic 2 en 16 October 2018 at 01:25
b27etula   ELF x86 - Format string bug basic 2 en 15 October 2018 at 03:38

Challenges associated with this section 61 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% 8643 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 7% 6616 10 Lyes 9
pas_valide ELF x86 - Format string bug basic 1 5% 4514 15 Lu33Y 4
pas_valide ELF x64 - Stack buffer overflow - basic 4% 3225 20 Arod 4
pas_valide ELF x86 - Format string bug basic 2 3% 2179 20 Lyes 5
pas_valide ELF x86 - Race condition 4% 3156 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 388 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 24 25 franb 0
pas_valide ELF x86 - Stack buffer overflow basic 3 3% 2174 25 Lyes 2
pas_valide ELF ARM - Stack Spraying 1% 94 30 pickle 3
pas_valide ELF x86 - BSS buffer overflow 3% 2568 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1687 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1196 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 587 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 164 40 pickle 2
pas_valide ELF MIPS - Basic ROP 1% 8 40 dagger 0
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 426 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 72 50 sbrk 2
pas_valide ELF x86 - Bug Hunting - Several issues 1% 32 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 2% 1292 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow basic 5 2% 1195 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 562 55 Arod 3
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 471 60 Arod 2
pas_valide ELF ARM - Race condition 1% 56 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 50 70 sbrk 2
pas_valide ELF x86 - Remote BSS buffer overflow 1% 580 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 703 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 120 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 174 80 Lyes 0
pas_valide LinKern ARM - vulnerable syscall 1% 49 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 216 85 franb 1
pas_valide LinKern x86 - Null pointer dereference 1% 224 90 franb 0
pas_valide LinKern x64 - Race condition 1% 150 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 19 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 3 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 433 100 sm0k 2
pas_valide ELF x86 - Hardened binary 2 1% 343 100 sm0k 2
pas_valide ELF x86 - Hardened binary 3 1% 221 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 240 100 sm0k 2
pas_valide LinKern x64 - reentrant code 1% 83 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 34 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 146 105 Arod 2
pas_valide LinKern x86 - basic ROP 1% 117 110 franb 1
pas_valide ELF ARM - Format String bug 1% 40 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 37 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 30 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 72 110 NeedToLearn 1
pas_valide ELF x86 - Hardened binary 5 1% 172 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 19 110 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% 83 115 Tosh 2
pas_valide ELF x86 - Hardened binary 6 1% 165 115 sm0k 2
pas_valide ELF x86 - Hardened binary 7 1% 134 115 Tosh 2
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 64 115 franb 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 17 120 pickle 0
pas_valide ELF ARM - Heap Overflow 1% 19 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 24 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 39 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 47 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 62 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 20 135 franb 1