ELF x64 - Browser exploit - BitString

135 Points  

A bit of browser fun!

Author

pickle,  

Level  Difficulty

Validations

7 Challengers 1%

Note  Notation

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12 Votes
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Solution  Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
christrc   ELF x64 - Browser exploit - BitString fr 11 January 2019 at 21:27
m_101   ELF x64 - Browser exploit - BitString fr 10 January 2019 at 00:43
franb   ELF x64 - Browser exploit - BitString fr 7 January 2019 at 21:07
Kileak   ELF x64 - Browser exploit - BitString en 2 January 2019 at 16:30
pickle   ELF x64 - Browser exploit - BitString en 24 December 2018 at 16:03
kikko   ELF x64 - Browser exploit - BitString fr 24 December 2018 at 15:57
realyc   ELF x64 - Browser exploit - BitString en 24 December 2018 at 12:08

Challenges associated with this section 65 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% 9564 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 7% 7286 10 Lyes 10
pas_valide ELF x86 - Format string bug basic 1 5% 4856 15 Lu33Y 4
pas_valide ELF x64 - Stack buffer overflow - basic 4% 3491 20 Arod 4
pas_valide ELF x86 - Format string bug basic 2 3% 2364 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 3316 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 446 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 68 25 franb 1
pas_valide ELF x86 - Stack buffer overflow basic 3 3% 2326 25 Lyes 2
pas_valide ELF ARM - Stack Spraying 1% 105 30 pickle 3
pas_valide ELF x86 - BSS buffer overflow 3% 2699 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1759 30 Lu33Y 4
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1322 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 632 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 194 40 pickle 3
pas_valide ELF MIPS - Basic ROP 1% 33 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 448 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 81 50 sbrk 2
pas_valide ELF x86 - Bug Hunting - Several issues 1% 38 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 2% 1332 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow basic 5 2% 1230 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 605 55 Arod 3
pas_valide ELF MIPS - Format String Glitch 1% 15 60 pickle, martin 0
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 490 60 Arod 2
pas_valide ELF ARM - Race condition 1% 66 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 22 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 54 70 sbrk 2
pas_valide ELF x86 - Remote BSS buffer overflow 1% 595 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 721 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 144 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 182 80 Lyes 1
pas_valide LinKern ARM - vulnerable syscall 1% 55 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 233 85 franb 1
pas_valide LinKern x86 - Null pointer dereference 1% 235 90 franb 0
pas_valide LinKern x64 - Race condition 1% 158 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 20 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 6 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 454 100 sm0k 2
pas_valide ELF x86 - Hardened binary 2 1% 361 100 sm0k 2
pas_valide ELF x86 - Hardened binary 3 1% 230 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 256 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 11 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 84 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 35 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 153 105 Arod 2
pas_valide LinKern x86 - basic ROP 1% 122 110 franb 1
pas_valide ELF ARM - Format String bug 1% 41 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 38 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 31 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 79 110 NeedToLearn 1
pas_valide ELF x86 - Hardened binary 5 1% 185 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 21 110 pickle 0
pas_valide ELF ARM - Heap Off-by-One 1% 28 115 pickle 1
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 90 115 Tosh 2
pas_valide ELF x86 - Hardened binary 6 1% 175 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 145 115 Tosh 2
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 73 115 franb 1
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 18 120 pickle 1
pas_valide ELF ARM - Heap Overflow 1% 21 120 pickle 0
pas_valide ELF x64 - Seccomp Whitelist 1% 28 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 49 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 51 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 68 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 29 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 7 135 pickle 0