ELF x86 - Race condition

20 Points  0x0

Are you fast enough ?

Author

Lu33Y,  

Level  Difficulty

Validations

7403 Challengers 2%

Note  Notation

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5
303 Votes

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solutions 10 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang Date
armand App - Système  ELF x86 - Race condition fr 14 October 2026 at 20:15
enryu App - System  ELF x86 - Race condition en 10 October 2026 at 06:19
Apto App - Système  ELF x86 - Race condition fr 6 October 2026 at 16:50
0xBrdn App - Système  ELF x86 - Race condition fr 1 October 2026 at 09:14
Anonymous App - System  ELF x86 - Race condition en 26 September 2026 at 12:46
danixo App - Système  ELF x86 - Race condition fr 22 September 2026 at 14:24
brickzilla App - System  ELF x86 - Race condition en 4 September 2026 at 14:10
Anonymous App - Système  ELF x86 - Race condition fr 3 September 2026 at 22:52
alexfontaine97 App - Système  ELF x86 - Race condition fr 1 September 2026 at 05:28
Anonymous App - Système  ELF x86 - Race condition fr 21 August 2026 at 14:12

challenges 93 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
validepas_valide ELF x86 - Stack buffer overflow basic 1 7% 27523 5 Lyes 11 25 March 2015
validepas_valide ELF x64 - Basic heap overflow 1% 3519 10 sourcePerrier 1 13 February 2023
validepas_valide ELF x86 - Stack buffer overflow basic 2 5% 18687 10 Lyes 10 10 April 2015
validepas_valide PE32 - Stack buffer overflow basic 1% 3120 10 Ech0 8 3 December 2019
validepas_valide ELF x86 - Format string bug basic 1 3% 11654 15 Lu33Y 7 8 February 2012
validepas_valide ELF x64 - Stack buffer overflow - basic 3% 9089 20 Arod 7 31 May 2015
validepas_valide ELF x86 - Format string bug basic 2 2% 6022 20 Lyes 5 8 April 2015
validepas_valide ELF x86 - Race condition 2% 7403 20 Lu33Y 10 8 February 2012
validepas_valide ELF ARM - Stack buffer overflow - basic 1% 1790 25 pickle 7 9 March 2017
validepas_valide ELF MIPS - Stack buffer overflow - No NX 1% 748 25 franb 2 28 September 2018
validepas_valide ELF x64 - Double free 1% 1617 25 Esad 2 23 March 2021
validepas_valide ELF x86 - Stack buffer overflow basic 3 2% 6111 25 Lyes 5 10 April 2015
validepas_valide ELF x86 - Use After Free - basic 1% 2549 25 Esad 3 26 May 2019
validepas_valide ELF ARM - Stack Spraying 1% 397 30 pickle 4 2 April 2017
validepas_valide ELF x64 - Stack buffer overflow - PIE 1% 1664 30 HomardBoy 3 26 March 2021
validepas_valide ELF x86 - BSS buffer overflow 2% 4810 30 Lu33Y 7 8 February 2012
validepas_valide ELF x86 - Stack buffer overflow basic 4 1% 3418 30 Lu33Y 5 8 February 2012
validepas_valide ELF x86 - Stack buffer overflow basic 6 1% 3680 30 TiWim 5 10 March 2016
validepas_valide ELF x86 - Format String Bug Basic 3 1% 1667 35 Lyes 2 27 May 2015
validepas_valide PE32 - Advanced stack buffer overflow 1% 342 35 Ech0 4 3 December 2019
validepas_valide ELF ARM - Basic ROP 1% 1032 40 pickle 6 11 March 2017
validepas_valide ELF MIPS - Basic ROP 1% 275 40 dagger 1 7 October 2018
validepas_valide ELF RISC-V - Intro - let’s do the ROP 1% 159 40 nobodyisnobody 1 13 February 2023
validepas_valide ELF x64 - Stack buffer overflow - Stack pivot 1% 333 40 spikeroot 0 11 July 2024
validepas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 1167 40 sebbb 2 20 July 2015
validepas_valide PE32+ Format string bug 1% 161 45 Ech0 2 3 December 2019
validepas_valide ELF x64 - Logic bug 1% 354 50 sbrk 3 8 July 2017
validepas_valide ELF x86 - Bug Hunting - Several issues 1% 210 50 sbrk 3 19 January 2018
validepas_valide ELF x86 - Stack buffer and integer overflow 1% 2287 50 Lu33Y 4 8 February 2012
validepas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 565 50 kikko 4 28 February 2019
validepas_valide ELF x86 - Stack buffer overflow basic 5 1% 2164 50 Lu33Y 1 8 February 2012
validepas_valide ELF x64 - Stack buffer overflow - advanced 1% 1768 55 Arod 4 5 June 2015
validepas_valide ELF MIPS - Format String Glitch 1% 150 60 pickle , martin 1 21 October 2018
validepas_valide ELF x64 - Heap Filling 1% 202 60 voydstack 0 27 May 2021
validepas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 1094 60 Arod 3 20 May 2015
validepas_valide ELF x64 - File Structure Hacking 1% 184 65 nobodyisnobody 0 27 May 2021
validepas_valide ELF ARM - Race condition 1% 234 70 pickle 1 3 June 2017
validepas_valide ELF x64 - Browser exploit - Intro 1% 153 70 pickle 1 2 November 2018
validepas_valide ELF x64 - Buggy VM 1% 133 70 NonStandardModel 0 10 June 2022
validepas_valide ELF x64 - Heap Safe-Linking Bypass 1% 168 70 nobodyisnobody 1 22 October 2021
validepas_valide ELF x64 - ret2dl_init 1% 106 70 kikko 0 27 May 2021
validepas_valide ELF x86 - Out of bounds attack - French Paradox 1% 199 70 sbrk 3 17 September 2017
validepas_valide ELF x86 - Remote BSS buffer overflow 1% 820 75 Tosh 1 6 February 2012
validepas_valide ELF x86 - Remote Format String bug 1% 1088 75 Tosh 2 6 February 2012
validepas_valide PE32+ Basic ROP 1% 104 75 Ech0 0 6 December 2019
validepas_valide ELF x64 - Remote heap buffer overflow - tcache 1% 379 80 franb 1 5 February 2017
validepas_valide ELF x86 - Blind remote format string bug 1% 390 80 Lyes 2 8 June 2015
validepas_valide LinKern ARM - vulnerable syscall 1% 270 85 pickle 1 22 March 2017
validepas_valide LinKern x86 - Buffer overflow basic 1 1% 684 85 franb 3 16 February 2016
validepas_valide ELF x64 - Sigreturn Oriented Programming 1% 376 90 Arod 4 25 June 2015
validepas_valide LinKern x86 - Null pointer dereference 1% 638 90 franb 1 16 February 2016
validepas_valide ELF x64 - Syscall chaining 1% 80 95 Njörd 1 11 July 2024
validepas_valide LinKern x64 - Race condition 1% 452 95 franb 3 16 February 2016
validepas_valide ELF ARM - Alphanumeric shellcode 1% 93 100 pickle 2 16 March 2017
validepas_valide ELF MIPS - URLEncoded Format String bug 1% 72 100 pickle 0 7 October 2018
validepas_valide ELF x64 - Blind SROP 1% 62 100 s1m 0 28 December 2023
validepas_valide ELF x64 - Heap Hop 1% 98 100 nobodyisnobody 0 11 July 2024
validepas_valide ELF x86 - Hardened binary 1 1% 953 100 sm0k 3 11 February 2012
validepas_valide ELF x86 - Hardened binary 2 1% 768 100 sm0k 3 11 February 2012
validepas_valide ELF x86 - Hardened binary 3 1% 455 100 sm0k 1 11 February 2012
validepas_valide ELF x86 - Hardened binary 4 1% 542 100 sm0k 2 11 February 2012
validepas_valide LinKern MIPSel - Vulnerable ioctl 1% 127 100 pickle 0 23 October 2018
validepas_valide LinKern x64 - reentrant code 1% 266 100 franb 2 1 March 2016
validepas_valide ELF ARM - Heap format string bug 1% 131 105 franb 1 3 June 2017
validepas_valide ELF ARM - Format String bug 1% 153 110 pickle 2 14 March 2017
validepas_valide ELF ARM - Use After Free 1% 161 110 pickle 0 22 March 2017
validepas_valide ELF x64 - FILE structure hijacking 1% 112 110 voydstack 3 27 May 2021
validepas_valide ELF x64 - Heap feng-shui 1% 145 110 laxa 2 4 August 2017
validepas_valide ELF x64 - Off-by-one bug 1% 199 110 NeedToLearn 3 19 May 2016
validepas_valide ELF x86 - Hardened binary 5 1% 420 110 sm0k 1 11 February 2012
validepas_valide LinKern ARM - Stack Overflow 1% 120 110 pickle 0 24 July 2017
validepas_valide LinKern x86 - basic ROP 1% 384 110 franb 3 6 May 2016
validepas_valide ELF ARM - Heap Off-by-One 1% 117 115 pickle 1 11 March 2017
validepas_valide ELF x64 - Advanced blind format string exploitation 1% 52 115 nobodyisnobody 0 11 July 2024
validepas_valide ELF x64 - Remote Heap buffer overflow 1 1% 247 115 Tosh 3 26 June 2015
validepas_valide ELF x86 - Hardened binary 6 1% 396 115 sm0k 3 11 February 2012
validepas_valide ELF x86 - Hardened binary 7 1% 335 115 Tosh 3 21 January 2013
validepas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 249 115 franb 1 17 August 2016
validepas_valide LinKern x64 - RowHammer 1% 162 115 pickle 2 17 March 2019
validepas_valide LinKern x64 - SLUB off-by-one 1% 149 115 Tosh 2 9 May 2019
validepas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 79 120 pickle 1 25 March 2017
validepas_valide ELF ARM - Heap Overflow 1% 101 120 pickle 1 2 April 2017
validepas_valide ELF ARM64 - Heap Underflow 1% 69 120 nobodyisnobody 0 13 February 2023
validepas_valide ELF x64 - Seccomp Whitelist 1% 139 120 pickle 0 3 June 2017
validepas_valide ELF x86 - Blind ROP 1% 191 120 franb 0 9 October 2016
validepas_valide LinKern x64 - Memory exploration 1% 215 120 franb 2 27 July 2016
validepas_valide WinKern x64 - Advanced stack buffer overflow - ROP 1% 83 120 __syscall , Synacktiv 1 27 January 2020
validepas_valide WinKern x64 - Use After Free 1% 64 120 __syscall , Synacktiv 0 27 January 2020
validepas_valide ELF x64 - Remote Heap buffer overflow 2 1% 194 130 Tosh , Fritz 1 1 July 2015
validepas_valide ELF x64 - Advanced Heap Exploitation - Heap Leakless & Fortified 1% 101 135 nobodyisnobody 1 27 May 2021
validepas_valide ELF x64 - Blind ROP 1% 153 135 franb 1 10 March 2018
validepas_valide ELF x64 - Browser exploit - BitString 1% 69 135 pickle 0 15 December 2018
validepas_valide ELF ARM64 - Multithreading 1% 70 140 franb 0 13 February 2023