LinKern x64 - SLUB off-by-one

115 Points  

Exploit an off-by-one on this vulnerable module

Author

Tosh,  

Level  Difficulty

Validations

5 Challengers 1%

Note  Notation

1
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5
3 Votes
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Solution  Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
pickle   LinKern x64 - SLUB off-by-one en 19 May 2019 at 04:56
kikko   LinKern x64 - SLUB off-by-one fr 17 May 2019 at 21:53
LevitatingLion   LinKern x64 - SLUB off-by-one en 16 May 2019 at 20:32
franb   LinKern x64 - SLUB off-by-one fr 15 May 2019 at 19:10
kowu   LinKern x64 - SLUB off-by-one en 15 May 2019 at 04:23

Challenges associated with this section 68 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% 10675 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 7% 8037 10 Lyes 10
pas_valide ELF x86 - Format string bug basic 1 5% 5341 15 Lu33Y 5
pas_valide ELF x64 - Stack buffer overflow - basic 3% 3864 20 Arod 5
pas_valide ELF x86 - Format string bug basic 2 2% 2618 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 3595 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 595 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 128 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 2568 25 Lyes 2
pas_valide ELF ARM - Stack Spraying 1% 119 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 3% 2871 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1898 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1504 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 711 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 277 40 pickle 4
pas_valide ELF MIPS - Basic ROP 1% 45 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 503 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 95 50 sbrk 2
pas_valide ELF x86 - Bug Hunting - Several issues 1% 49 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 2% 1398 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 47 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1288 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 692 55 Arod 3
pas_valide ELF MIPS - Format String Glitch 1% 21 60 pickle, martin 0
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 519 60 Arod 2
pas_valide ELF ARM - Race condition 1% 70 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 28 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 62 70 sbrk 2
pas_valide ELF x86 - Remote BSS buffer overflow 1% 615 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 753 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 158 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 197 80 Lyes 1
pas_valide LinKern ARM - vulnerable syscall 1% 62 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 259 85 franb 2
pas_valide LinKern x86 - Null pointer dereference 1% 271 90 franb 0
pas_valide LinKern x64 - Race condition 1% 175 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 21 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 8 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 480 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 384 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 243 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 273 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 14 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 92 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 39 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 163 105 Arod 2
pas_valide ELF ARM - Format String bug 1% 44 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 44 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 34 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 81 110 NeedToLearn 2
pas_valide ELF x86 - Hardened binary 5 1% 201 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 24 110 pickle 0
pas_valide LinKern x86 - basic ROP 1% 137 110 franb 1
pas_valide ELF ARM - Heap Off-by-One 1% 30 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 98 115 Tosh 3
pas_valide ELF x86 - Hardened binary 6 1% 192 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 155 115 Tosh 2
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 83 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 20 115 pickle 0
pas_valide LinKern x64 - SLUB off-by-one 1% 5 115 Tosh 0
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 19 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 22 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 30 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 58 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 60 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 72 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 35 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 12 135 pickle 0