ELF ARM - Heap Off-by-One

115 Points  

Poison the heap for fun and profit

Author

pickle,  

Level  Difficulty

Validations

28 Challengers 1%

Note  Notation

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7 Votes
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Solution 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Jrmbt   ELF ARM - Heap Off-by-One fr 21 October 2018 at 10:18
venom   ELF ARM - Heap Off-by-One en 20 October 2018 at 11:46
Greendeath   ELF ARM - Heap Off-by-One fr 13 July 2018 at 20:40
markmark   ELF ARM - Heap Off-by-One en 25 May 2018 at 19:09
chaignc   ELF ARM - Heap Off-by-One fr 7 February 2018 at 21:56
hTm1zZwW   ELF ARM - Heap Off-by-One en 5 February 2018 at 03:45
XeR   ELF ARM - Heap Off-by-One fr 4 February 2018 at 21:58
panda   ELF ARM - Heap Off-by-One fr 10 December 2017 at 11:28
TheGuy   ELF ARM - Heap Off-by-One en 30 November 2017 at 06:46
Maxima   ELF ARM - Heap Off-by-One fr 30 November 2017 at 06:44

Challenges associated with this section 64 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% 9212 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 7% 7024 10 Lyes 9
pas_valide ELF x86 - Format string bug basic 1 5% 4718 15 Lu33Y 4
pas_valide ELF x64 - Stack buffer overflow - basic 4% 3363 20 Arod 4
pas_valide ELF x86 - Format string bug basic 2 3% 2278 20 Lyes 5
pas_valide ELF x86 - Race condition 4% 3253 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 418 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 47 25 franb 1
pas_valide ELF x86 - Stack buffer overflow basic 3 3% 2249 25 Lyes 2
pas_valide ELF ARM - Stack Spraying 1% 101 30 pickle 3
pas_valide ELF x86 - BSS buffer overflow 3% 2642 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1724 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1253 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 614 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 177 40 pickle 3
pas_valide ELF MIPS - Basic ROP 1% 26 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 436 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 74 50 sbrk 2
pas_valide ELF x86 - Bug Hunting - Several issues 1% 34 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 2% 1306 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow basic 5 2% 1213 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 586 55 Arod 3
pas_valide ELF MIPS - Format String Glitch 1% 14 60 pickle, martin 0
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 480 60 Arod 2
pas_valide ELF ARM - Race condition 1% 62 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 15 70 pickle 0
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 51 70 sbrk 2
pas_valide ELF x86 - Remote BSS buffer overflow 1% 585 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 712 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 134 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 177 80 Lyes 0
pas_valide LinKern ARM - vulnerable syscall 1% 52 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 226 85 franb 1
pas_valide LinKern x86 - Null pointer dereference 1% 232 90 franb 0
pas_valide LinKern x64 - Race condition 1% 157 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 20 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 6 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 446 100 sm0k 2
pas_valide ELF x86 - Hardened binary 2 1% 352 100 sm0k 2
pas_valide ELF x86 - Hardened binary 3 1% 226 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 249 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 9 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 83 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 35 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 151 105 Arod 2
pas_valide LinKern x86 - basic ROP 1% 120 110 franb 1
pas_valide ELF ARM - Format String bug 1% 41 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 38 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 31 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 77 110 NeedToLearn 1
pas_valide ELF x86 - Hardened binary 5 1% 179 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 20 110 pickle 0
pas_valide ELF ARM - Heap Off-by-One 1% 28 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 86 115 Tosh 2
pas_valide ELF x86 - Hardened binary 6 1% 169 115 sm0k 2
pas_valide ELF x86 - Hardened binary 7 1% 141 115 Tosh 2
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 71 115 franb 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 18 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 21 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 27 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 43 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 51 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 65 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 23 135 franb 1