ELF x64 - Browser exploit - BitString

135 Points  

A bit of browser fun!

Author

pickle,  

Level  Difficulty

Validations

15 Challengers 1%

Note  Notation

1
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5
23 Votes
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Solution  Solution

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Challenge Results Challenge Results

Pseudo Challenge Lang date
XeR   ELF x64 - Browser exploit - BitString fr 4 June 2019 at 20:20
Redouane   ELF x64 - Browser exploit - BitString fr 25 May 2019 at 01:33
john.doe   ELF x64 - Browser exploit - BitString en 23 May 2019 at 19:52
Geluchat   ELF x64 - Browser exploit - BitString fr 15 May 2019 at 19:42
fanch   ELF x64 - Browser exploit - BitString fr 12 May 2019 at 17:08
Alkanor   ELF x64 - Browser exploit - BitString fr 28 April 2019 at 14:55
__syscall   ELF x64 - Browser exploit - BitString fr 1 March 2019 at 22:36
abu_youssef   ELF x64 - Browser exploit - BitString fr 1 March 2019 at 13:25
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

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% 11369 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 8451 10 Lyes 10
pas_valide ELF x86 - Format string bug basic 1 4% 5613 15 Lu33Y 5
pas_valide ELF x64 - Stack buffer overflow - basic 3% 4117 20 Arod 5
pas_valide ELF x86 - Format string bug basic 2 2% 2757 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 3787 20 Lu33Y 8
pas_valide ELF ARM - Stack buffer overflow - basic 1% 680 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 169 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 2732 25 Lyes 2
pas_valide ELF x86 - Use After Free - basic 1% 256 25 Esad 2
pas_valide ELF ARM - Stack Spraying 1% 133 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 3% 2941 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 1962 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1585 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 753 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 324 40 pickle 4
pas_valide ELF MIPS - Basic ROP 1% 54 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 536 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 109 50 sbrk 3
pas_valide ELF x86 - Bug Hunting - Several issues 1% 54 50 sbrk 0
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1442 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 72 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1322 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 741 55 Arod 4
pas_valide ELF MIPS - Format String Glitch 1% 24 60 pickle, martin 0
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 558 60 Arod 2
pas_valide ELF ARM - Race condition 1% 75 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 35 70 pickle 1
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 66 70 sbrk 3
pas_valide ELF x86 - Remote BSS buffer overflow 1% 623 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 771 75 Tosh 2
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 168 80 franb 1
pas_valide ELF x86 - Blind remote format string bug 1% 206 80 Lyes 1
pas_valide LinKern ARM - vulnerable syscall 1% 72 85 pickle 0
pas_valide LinKern x86 - Buffer overflow basic 1 1% 276 85 franb 2
pas_valide LinKern x86 - Null pointer dereference 1% 286 90 franb 0
pas_valide LinKern x64 - Race condition 1% 181 95 franb 0
pas_valide ELF ARM - Alphanumeric shellcode 1% 22 100 pickle 2
pas_valide ELF MIPS - URLEncoded Format String bug 1% 9 100 pickle 0
pas_valide ELF x86 - Hardened binary 1 1% 507 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 398 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 250 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 281 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 20 100 pickle 0
pas_valide LinKern x64 - reentrant code 1% 96 100 franb 1
pas_valide ELF ARM - Heap format string bug 1% 43 105 franb 0
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 169 105 Arod 3
pas_valide ELF ARM - Format String bug 1% 52 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 48 110 pickle 0
pas_valide ELF x64 - Heap feng-shui 1% 37 110 laxa 2
pas_valide ELF x64 - Off-by-one bug 1% 84 110 NeedToLearn 2
pas_valide ELF x86 - Hardened binary 5 1% 210 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 29 110 pickle 0
pas_valide LinKern x86 - basic ROP 1% 141 110 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% 102 115 Tosh 3
pas_valide ELF x86 - Hardened binary 6 1% 197 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 164 115 Tosh 3
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 92 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 24 115 pickle 0
pas_valide LinKern x64 - SLUB off-by-one 1% 14 115 Tosh 1
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% 34 120 pickle 0
pas_valide ELF x86 - Blind ROP 1% 61 120 franb 0
pas_valide Linkern x64 - Memory exploration 1% 62 120 franb 1
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 74 130 Tosh, Fritz 1
pas_valide ELF x64 - Blind ROP 1% 41 135 franb 1
pas_valide ELF x64 - Browser exploit - BitString 1% 15 135 pickle 0