ELF x64 - Off-by-one bug

110 Points  0x0

Side effect

Author

NeedToLearn,  

Level  Difficulty

Validations

138 Challengers 1%

Note  Notation

1
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3
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5
34 Votes

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solutions 2 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
dilag_luc App - Système  ELF x64 - Off-by-one bug fr 2 May 2023 at 23:45
mjuuum App - System  ELF x64 - Off-by-one bug en 5 March 2023 at 17:03
0nift3r App - System  ELF x64 - Off-by-one bug de 21 January 2023 at 14:45
Njörd App - Système  ELF x64 - Off-by-one bug fr 11 January 2023 at 20:36
Iroh App - Système  ELF x64 - Off-by-one bug fr 8 January 2023 at 16:10
csg App - Système  ELF x64 - Off-by-one bug fr 5 December 2022 at 17:47
face0xff App - Système  ELF x64 - Off-by-one bug fr 29 October 2022 at 12:47
ohohoh App - Système  ELF x64 - Off-by-one bug fr 1 September 2022 at 17:26
W00dy App - Système  ELF x64 - Off-by-one bug fr 18 July 2022 at 21:22
Kebche App - Système  ELF x64 - Off-by-one bug fr 28 June 2022 at 23:14

challenges 88 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide ELF x86 - Stack buffer overflow basic 1 8% 20783 5 Lyes 11 25 March 2015
pas_valide ELF x64 - Basic heap overflow 1% 582 10 sourcePerrier 1 13 February 2023
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 14754 10 Lyes 10 10 April 2015
pas_valide PE32 - Stack buffer overflow basic 1% 1867 10 Ech0 8 3 December 2019
pas_valide ELF x86 - Format string bug basic 1 4% 9248 15 Lu33Y 6 8 February 2012
pas_valide ELF x64 - Stack buffer overflow - basic 3% 7069 20 Arod 7 31 May 2015
pas_valide ELF x86 - Format string bug basic 2 2% 4698 20 Lyes 5 8 April 2015
pas_valide ELF x86 - Race condition 3% 5939 20 Lu33Y 10 8 February 2012
pas_valide ELF ARM - Stack buffer overflow - basic 1% 1230 25 pickle 7 9 March 2017
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 481 25 franb 2 28 September 2018
pas_valide ELF x64 - Double free 1% 698 25 Esad 2 23 March 2021
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 4697 25 Lyes 4 10 April 2015
pas_valide ELF x86 - Use After Free - basic 1% 1621 25 Esad 3 26 May 2019
pas_valide ELF ARM - Stack Spraying 1% 229 30 pickle 4 2 April 2017
pas_valide ELF x64 - Stack buffer overflow - PIE 1% 819 30 HomardBoy 2 26 March 2021
pas_valide ELF x86 - BSS buffer overflow 2% 4036 30 Lu33Y 7 8 February 2012
pas_valide ELF x86 - Stack buffer overflow basic 4 1% 2782 30 Lu33Y 5 8 February 2012
pas_valide ELF x86 - Stack buffer overflow basic 6 1% 2819 30 TiWim 5 10 March 2016
pas_valide ELF x86 - Format String Bug Basic 3 1% 1224 35 Lyes 2 27 May 2015
pas_valide PE32 - Advanced stack buffer overflow 1% 216 35 Ech0 4 3 December 2019
pas_valide ELF ARM - Basic ROP 1% 679 40 pickle 5 11 March 2017
pas_valide ELF MIPS - Basic ROP 1% 155 40 dagger 1 7 October 2018
pas_valide ELF RISC-V - Intro - let’s do the ROP 1% 34 40 nobodyisnobody 0 13 February 2023
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 865 40 sebbb 2 20 July 2015
pas_valide PE32+ Format string bug 1% 94 45 Ech0 1 3 December 2019
pas_valide ELF x64 - Logic bug 1% 211 50 sbrk 3 8 July 2017
pas_valide ELF x86 - Bug Hunting - Several issues 1% 113 50 sbrk 3 19 January 2018
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1889 50 Lu33Y 4 8 February 2012
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 321 50 kikko 3 28 February 2019
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1764 50 Lu33Y 1 8 February 2012
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 1305 55 Arod 4 5 June 2015
pas_valide ELF MIPS - Format String Glitch 1% 69 60 pickle 1 21 October 2018
pas_valide ELF x64 - Heap Filling 1% 71 60 voydstack 0 27 May 2021
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 860 60 Arod 2 20 May 2015
pas_valide ELF x64 - File Structure Hacking 1% 67 65 nobodyisnobody 0 27 May 2021
pas_valide ELF ARM - Race condition 1% 130 70 pickle 1 3 June 2017
pas_valide ELF x64 - Browser exploit - Intro 1% 89 70 pickle 1 2 November 2018
pas_valide ELF x64 - Buggy VM 1% 47 70 NonStandardModel 0 10 June 2022
pas_valide ELF x64 - Heap Safe-Linking Bypass 1% 52 70 nobodyisnobody 0 22 October 2021
pas_valide ELF x64 - ret2dl_init 1% 35 70 kikko 0 27 May 2021
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 118 70 sbrk 3 17 September 2017
pas_valide ELF x86 - Remote BSS buffer overflow 1% 745 75 Tosh 1 6 February 2012
pas_valide ELF x86 - Remote Format String bug 1% 942 75 Tosh 2 6 February 2012
pas_valide PE32+ Basic ROP 1% 59 75 Ech0 0 6 December 2019
pas_valide ELF x64 - Remote heap buffer overflow - tcache 1% 289 80 franb 1 5 February 2017
pas_valide ELF x86 - Blind remote format string bug 1% 311 80 Lyes 2 8 June 2015
pas_valide LinKern ARM - vulnerable syscall 1% 151 85 pickle 0 22 March 2017
pas_valide LinKern x86 - Buffer overflow basic 1 1% 495 85 franb 3 16 February 2016
pas_valide LinKern x86 - Null pointer dereference 1% 472 90 franb 1 16 February 2016
pas_valide LinKern x64 - Race condition 1% 319 95 franb 3 16 February 2016
pas_valide ELF ARM - Alphanumeric shellcode 1% 40 100 pickle 2 16 March 2017
pas_valide ELF MIPS - URLEncoded Format String bug 1% 32 100 pickle 0 7 October 2018
pas_valide ELF x86 - Hardened binary 1 1% 749 100 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 2 1% 597 100 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 3 1% 354 100 sm0k 1 11 February 2012
pas_valide ELF x86 - Hardened binary 4 1% 416 100 sm0k 2 11 February 2012
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 62 100 pickle 0 23 October 2018
pas_valide LinKern x64 - reentrant code 1% 175 100 franb 2 1 March 2016
pas_valide ELF ARM - Heap format string bug 1% 76 105 franb 1 3 June 2017
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 262 105 Arod 4 25 June 2015
pas_valide ELF ARM - Format String bug 1% 85 110 pickle 2 14 March 2017
pas_valide ELF ARM - Use After Free 1% 91 110 pickle 0 22 March 2017
pas_valide ELF x64 - FILE structure hijacking 1% 45 110 voydstack 3 27 May 2021
pas_valide ELF x64 - Heap feng-shui 1% 77 110 laxa 2 4 August 2017
pas_valide ELF x64 - Off-by-one bug 1% 138 110 NeedToLearn 2 19 May 2016
pas_valide ELF x86 - Hardened binary 5 1% 325 110 sm0k 1 11 February 2012
pas_valide LinKern ARM - Stack Overflow 1% 63 110 pickle 0 24 July 2017
pas_valide LinKern x86 - basic ROP 1% 267 110 franb 3 6 May 2016
pas_valide ELF ARM - Heap Off-by-One 1% 55 115 pickle 1 11 March 2017
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 171 115 Tosh 3 26 June 2015
pas_valide ELF x86 - Hardened binary 6 1% 301 115 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 7 1% 251 115 Tosh 3 21 January 2013
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 172 115 franb 1 17 August 2016
pas_valide LinKern x64 - RowHammer 1% 88 115 pickle 2 17 March 2019
pas_valide LinKern x64 - SLUB off-by-one 1% 73 115 Tosh 2 9 May 2019
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 33 120 pickle 1 25 March 2017
pas_valide ELF ARM - Heap Overflow 1% 42 120 pickle 1 2 April 2017
pas_valide ELF ARM64 - Heap Underflow 1% 6 120 nobodyisnobody 0 13 February 2023
pas_valide ELF ARM64 - Multithreading 1% 4 120 franb 0 13 February 2023
pas_valide ELF x64 - Seccomp Whitelist 1% 71 120 pickle 0 3 June 2017
pas_valide ELF x86 - Blind ROP 1% 139 120 franb 0 9 October 2016
pas_valide LinKern x64 - Memory exploration 1% 127 120 franb 2 27 July 2016
pas_valide WinKern x64 - Advanced stack buffer overflow - ROP 1% 35 120 __syscall 1 27 January 2020
pas_valide WinKern x64 - Use After Free 1% 22 120 __syscall 0 27 January 2020
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 130 130 Tosh 1 1 July 2015
pas_valide ELF x64 - Advanced Heap Exploitation - Heap Leakless & Fortified 1% 30 135 nobodyisnobody 1 27 May 2021
pas_valide ELF x64 - Blind ROP 1% 104 135 franb 1 10 March 2018
pas_valide ELF x64 - Browser exploit - BitString 1% 35 135 pickle 0 15 December 2018