LinKern x86 - Buffer overflow basic 1

85 Points  0x0

Not too much

Author

franb,  

Level  Difficulty

Validations

360 Challengers 1%

Note  Notation

1
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5
65 Votes

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 3 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
sdx04   LinKern x86 - Buffer overflow basic 1 20 November 2020 at 16:46
Tim   LinKern x86 - Buffer overflow basic 1 18 November 2020 at 12:55
T.L.   LinKern x86 - Buffer overflow basic 1 13 November 2020 at 23:09
Solden   LinKern x86 - Buffer overflow basic 1 10 November 2020 at 09:37
MaoKo   LinKern x86 - Buffer overflow basic 1 1 November 2020 at 03:45
hhdx   LinKern x86 - Buffer overflow basic 1 21 October 2020 at 09:24
pskrgag   LinKern x86 - Buffer overflow basic 1 5 October 2020 at 15:57
Gezzy   LinKern x86 - Buffer overflow basic 1 27 September 2020 at 00:47
notreality   LinKern x86 - Buffer overflow basic 1 25 September 2020 at 10:06
ex0dus   LinKern x86 - Buffer overflow basic 1 8 September 2020 at 21:02

 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% 15161 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 10824 10 Lyes 10
pas_valide PE32 - Stack buffer overflow basic 1% 676 10 Ech0 6
pas_valide ELF x86 - Format string bug basic 1 4% 7028 15 Lu33Y 5
pas_valide ELF x64 - Stack buffer overflow - basic 3% 5348 20 Arod 6
pas_valide ELF x86 - Format string bug basic 2 2% 3521 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 4799 20 Lu33Y 9
pas_valide ELF ARM - Stack buffer overflow - basic 1% 985 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 312 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 3511 25 Lyes 3
pas_valide ELF x86 - Use After Free - basic 1% 940 25 Esad 3
pas_valide ELF ARM - Stack Spraying 1% 172 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 2% 3382 30 Lu33Y 7
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 2229 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 2060 30 TiWim 5
pas_valide ELF x86 - Format String Bug Basic 3 1% 922 35 Lyes 2
pas_valide PE32 - Advanced stack buffer overflow 1% 112 35 Ech0 3
pas_valide ELF ARM - Basic ROP 1% 499 40 pickle 5
pas_valide ELF MIPS - Basic ROP 1% 94 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 658 40 sebbb 2
pas_valide PE32+ Format string bug 1% 53 45 Ech0 1
pas_valide ELF x64 - Logic bug 1% 144 50 sbrk 3
pas_valide ELF x86 - Bug Hunting - Several issues 1% 73 50 sbrk 2
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1604 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 148 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1469 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 966 55 Arod 4
pas_valide ELF MIPS - Format String Glitch 1% 41 60 pickle, martin 1
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 695 60 Arod 2
pas_valide ELF ARM - Race condition 1% 101 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 59 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 84 70 sbrk 3
pas_valide ELF x86 - Remote BSS buffer overflow 1% 674 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 841 75 Tosh 2
pas_valide PE32+ Basic ROP 1% 26 75 Ech0 0
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 217 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 247 80 Lyes 1
pas_valide LinKern ARM - vulnerable syscall 1% 102 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 360 85 franb 3
pas_valide LinKern x86 - Null pointer dereference 1% 359 90 franb 0
pas_valide LinKern x64 - Race condition 1% 222 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 34 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 19 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 597 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 475 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 293 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 328 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 34 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 119 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 64 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 199 105 Arod 4
pas_valide ELF ARM - Format String bug 1% 72 110 pickle 2
pas_valide ELF ARM - Use After Free 1% 73 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 54 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 106 110 NeedToLearn 2
pas_valide ELF x86 - Hardened binary 5 1% 256 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 40 110 pickle 0
pas_valide LinKern x86 - basic ROP 1% 179 110 franb 1
pas_valide ELF ARM - Heap Off-by-One 1% 46 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 138 115 Tosh 3
pas_valide ELF x86 - Hardened binary 6 1% 237 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 200 115 Tosh 3
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 119 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 50 115 pickle 1
pas_valide LinKern x64 - SLUB off-by-one 1% 31 115 Tosh 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 28 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 33 120 pickle 1
pas_valide ELF x64 - Seccomp Whitelist 1% 41 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 97 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 79 120 franb 1
pas_valide WinKern x64 - Advanced stack buffer overflow - ROP 1% 13 120 __syscall, Synacktiv 1
pas_valide WinKern x64 - Use After Free 1% 9 120 __syscall, Synacktiv 0
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 102 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 67 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 24 135 pickle 0