ELF x64 - Logic bug

50 Points  0x0

glibc indirect weakness and common bug

Author

sbrk,  

Level  Difficulty

Validations

150 Challengers 1%

Note  Notation

37 Votes

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Challenge Results Challenge Results

Pseudo Challenge Lang date
knacky   ELF x64 - Logic bug 4 February 2021 at 00:17
k4ndar3c   ELF x64 - Logic bug 1 February 2021 at 15:24
anon   ELF x64 - Logic bug 23 January 2021 at 02:12
Noiche   ELF x64 - Logic bug 10 January 2021 at 02:52
orihonig   ELF x64 - Logic bug 8 December 2020 at 22:09
Shiro   ELF x64 - Logic bug 4 December 2020 at 23:32
voydstack   ELF x64 - Logic bug 3 November 2020 at 00:48
aliverix   ELF x64 - Logic bug 30 September 2020 at 17:57
k6   ELF x64 - Logic bug 27 September 2020 at 21:29
Slowerzs   ELF x64 - Logic bug 10 September 2020 at 13:51

 75 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% 15746 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 11257 10 Lyes 10
pas_valide PE32 - Stack buffer overflow basic 1% 794 10 Ech0 7
pas_valide ELF x86 - Format string bug basic 1 4% 7302 15 Lu33Y 6
pas_valide ELF x64 - Stack buffer overflow - basic 3% 5564 20 Arod 6
pas_valide ELF x86 - Format string bug basic 2 2% 3661 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 4958 20 Lu33Y 9
pas_valide ELF ARM - Stack buffer overflow - basic 1% 1046 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 332 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 3656 25 Lyes 3
pas_valide ELF x86 - Use After Free - basic 1% 1054 25 Esad 3
pas_valide ELF ARM - Stack Spraying 1% 187 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 2% 3478 30 Lu33Y 7
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 2290 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 2136 30 TiWim 5
pas_valide ELF x86 - Format String Bug Basic 3 1% 963 35 Lyes 2
pas_valide PE32 - Advanced stack buffer overflow 1% 132 35 Ech0 4
pas_valide ELF ARM - Basic ROP 1% 532 40 pickle 5
pas_valide ELF MIPS - Basic ROP 1% 100 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 680 40 sebbb 2
pas_valide PE32+ Format string bug 1% 60 45 Ech0 1
pas_valide ELF x64 - Logic bug 1% 150 50 sbrk 3
pas_valide ELF x86 - Bug Hunting - Several issues 1% 80 50 sbrk 2
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1646 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 168 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1501 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 998 55 Arod 4
pas_valide ELF MIPS - Format String Glitch 1% 44 60 pickle, martin 1
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 717 60 Arod 2
pas_valide ELF ARM - Race condition 1% 108 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 64 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 92 70 sbrk 3
pas_valide ELF x86 - Remote BSS buffer overflow 1% 688 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 848 75 Tosh 2
pas_valide PE32+ Basic ROP 1% 33 75 Ech0 0
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 229 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 257 80 Lyes 2
pas_valide LinKern ARM - vulnerable syscall 1% 111 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 374 85 franb 3
pas_valide LinKern x86 - Null pointer dereference 1% 373 90 franb 0
pas_valide LinKern x64 - Race condition 1% 234 95 franb 1
pas_valide ELF ARM - Alphanumeric shellcode 1% 35 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 21 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 616 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 489 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 302 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 340 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 36 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 130 100 franb 2
pas_valide ELF ARM - Heap format string bug 1% 65 105 franb 1
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 207 105 Arod 4
pas_valide ELF ARM - Format String bug 1% 76 110 pickle 2
pas_valide ELF ARM - Use After Free 1% 82 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 56 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 114 110 NeedToLearn 2
pas_valide ELF x86 - Hardened binary 5 1% 260 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 48 110 pickle 0
pas_valide LinKern x86 - basic ROP 1% 191 110 franb 2
pas_valide ELF ARM - Heap Off-by-One 1% 49 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 139 115 Tosh 3
pas_valide ELF x86 - Hardened binary 6 1% 240 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 203 115 Tosh 3
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 124 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 53 115 pickle 1
pas_valide LinKern x64 - SLUB off-by-one 1% 36 115 Tosh 2
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 30 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 38 120 pickle 1
pas_valide ELF x64 - Seccomp Whitelist 1% 47 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 103 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 84 120 franb 1
pas_valide WinKern x64 - Advanced stack buffer overflow - ROP 1% 18 120 __syscall, Synacktiv 1
pas_valide WinKern x64 - Use After Free 1% 10 120 __syscall, Synacktiv 0
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 105 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 73 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 27 135 pickle 0