LinKern x64 - SLUB off-by-one

115 Points  

Exploit an off-by-one on this vulnerable module

Author

Tosh,  

Level  Difficulty

Validations

17 Challengers 1%

Note  Notation

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7 Votes
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Solution 1 Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
Tomtombinary   LinKern x64 - SLUB off-by-one fr 21 September 2019 at 18:46
abu_youssef   LinKern x64 - SLUB off-by-one en 1 September 2019 at 18:14
Sideway   LinKern x64 - SLUB off-by-one en 27 August 2019 at 16:16
javierprtd   LinKern x64 - SLUB off-by-one es 24 June 2019 at 17:50
Tosh   LinKern x64 - SLUB off-by-one fr 7 June 2019 at 16:56
XeR   LinKern x64 - SLUB off-by-one fr 4 June 2019 at 20:20
Alkanor   LinKern x64 - SLUB off-by-one fr 1 June 2019 at 22:42
Geluchat   LinKern x64 - SLUB off-by-one fr 28 May 2019 at 20:40
john.doe   LinKern x64 - SLUB off-by-one en 26 May 2019 at 16:57
Kileak   LinKern x64 - SLUB off-by-one en 25 May 2019 at 23:06

Challenges associated with this section 69 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 8% 11799 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 8708 10 Lyes 10
pas_valide ELF x86 - Format string bug basic 1 4% 5777 15 Lu33Y 5
pas_valide ELF x64 - Stack buffer overflow - basic 3% 4270 20 Arod 5
pas_valide ELF x86 - Format string bug basic 2 2% 2852 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 3878 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 717 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 184 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 2817 25 Lyes 2
pas_valide ELF x86 - Use After Free - basic 1% 365 25 Esad 2
pas_valide ELF ARM - Stack Spraying 1% 136 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 2% 2989 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1994 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1630 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 771 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 348 40 pickle 5
pas_valide ELF MIPS - Basic ROP 1% 62 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 553 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 112 50 sbrk 3
pas_valide ELF x86 - Bug Hunting - Several issues 1% 59 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1466 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 86 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1341 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 774 55 Arod 4
pas_valide ELF MIPS - Format String Glitch 1% 27 60 pickle, martin 0
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 581 60 Arod 2
pas_valide ELF ARM - Race condition 1% 79 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 38 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 68 70 sbrk 3
pas_valide ELF x86 - Remote BSS buffer overflow 1% 631 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 780 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 177 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 215 80 Lyes 1
pas_valide LinKern ARM - vulnerable syscall 1% 75 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 282 85 franb 2
pas_valide LinKern x86 - Null pointer dereference 1% 293 90 franb 0
pas_valide LinKern x64 - Race condition 1% 185 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 23 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 13 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 519 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 407 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 258 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 289 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 23 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 96 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 45 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 171 105 Arod 3
pas_valide ELF ARM - Format String bug 1% 54 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 51 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 37 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 86 110 NeedToLearn 2
pas_valide ELF x86 - Hardened binary 5 1% 215 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 30 110 pickle 0
pas_valide LinKern x86 - basic ROP 1% 144 110 franb 1
pas_valide ELF ARM - Heap Off-by-One 1% 31 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 102 115 Tosh 3
pas_valide ELF x86 - Hardened binary 6 1% 201 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 166 115 Tosh 3
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 96 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 24 115 pickle 0
pas_valide LinKern x64 - SLUB off-by-one 1% 17 115 Tosh 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 20 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 23 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 34 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 67 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 63 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 74 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 42 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 16 135 pickle 0