ELF x86 - Format String Bug Basic 3

35 Points  0x0

Another way to exploit a format string bug

Author

Lyes,  

Level  Difficulty

Validations

800 Challengers 1%

Note  Notation

1
2
3
4
5
80 Votes

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 2 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
orihonig   ELF x86 - Format String Bug Basic 3 8 December 2019 at 17:44
Tholgrim   ELF x86 - Format String Bug Basic 3 5 December 2019 at 23:54
hrld   ELF x86 - Format String Bug Basic 3 3 December 2019 at 17:49
coolkid   ELF x86 - Format String Bug Basic 3 26 November 2019 at 08:48
haters   ELF x86 - Format String Bug Basic 3 24 November 2019 at 12:32
Aracna   ELF x86 - Format String Bug Basic 3 21 November 2019 at 22:08
Podalirius   ELF x86 - Format String Bug Basic 3 18 November 2019 at 15:15
Walleza   ELF x86 - Format String Bug Basic 3 18 November 2019 at 14:10
Geographer   ELF x86 - Format String Bug Basic 3 16 November 2019 at 17:42
crapmo   ELF x86 - Format String Bug Basic 3 16 November 2019 at 09:48

 73 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide ELF x86 - Stack buffer overflow basic 1 8% 12513 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 9136 10 Lyes 10
pas_valide PE32 - Stack buffer overflow basic 1% 81 10 Ech0 0
pas_valide ELF x86 - Format string bug basic 1 4% 6021 15 Lu33Y 5
pas_valide PE32 - Advanced stack buffer overflow 1% 1 15 Ech0 0
pas_valide ELF x64 - Stack buffer overflow - basic 3% 4514 20 Arod 5
pas_valide ELF x86 - Format string bug basic 2 2% 2976 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 4076 20 Lu33Y 9
pas_valide ELF ARM - Stack buffer overflow - basic 1% 768 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 216 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 2954 25 Lyes 2
pas_valide ELF x86 - Use After Free - basic 1% 490 25 Esad 3
pas_valide PE32+ Egg Hunter 1% 1 25 Ech0 0
pas_valide ELF ARM - Stack Spraying 1% 141 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 2% 3060 30 Lu33Y 7
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 2040 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1713 30 TiWim 5
pas_valide ELF x86 - Format String Bug Basic 3 1% 800 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 380 40 pickle 5
pas_valide ELF MIPS - Basic ROP 1% 66 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 572 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 122 50 sbrk 3
pas_valide ELF x86 - Bug Hunting - Several issues 1% 62 50 sbrk 1
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1495 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 94 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1367 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 815 55 Arod 4
pas_valide ELF MIPS - Format String Glitch 1% 30 60 pickle, martin 1
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 599 60 Arod 2
pas_valide ELF ARM - Race condition 1% 81 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 42 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 69 70 sbrk 3
pas_valide ELF x86 - Remote BSS buffer overflow 1% 640 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 790 75 Tosh 2
pas_valide PE32+ Basic ROP 1% 1 75 Ech0 0
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 177 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 217 80 Lyes 1
pas_valide LinKern ARM - vulnerable syscall 1% 78 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 298 85 franb 2
pas_valide LinKern x86 - Null pointer dereference 1% 311 90 franb 0
pas_valide LinKern x64 - Race condition 1% 191 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 23 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 14 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 536 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 422 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 266 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 300 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 26 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 102 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 49 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 175 105 Arod 3
pas_valide ELF ARM - Format String bug 1% 58 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 54 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 40 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 89 110 NeedToLearn 2
pas_valide ELF x86 - Hardened binary 5 1% 223 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 31 110 pickle 0
pas_valide LinKern x86 - basic ROP 1% 153 110 franb 1
pas_valide ELF ARM - Heap Off-by-One 1% 31 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 105 115 Tosh 3
pas_valide ELF x86 - Hardened binary 6 1% 209 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 173 115 Tosh 3
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 101 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 27 115 pickle 0
pas_valide LinKern x64 - SLUB off-by-one 1% 18 115 Tosh 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 20 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 23 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 34 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 74 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 67 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 77 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 47 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 16 135 pickle 0