ELF x86 - Stack buffer overflow basic 4

30 Points  

Can you return the env to me pleazzz ?

Author

Lu33Y,  

Level  Difficulty

Validations

2001 Challengers 2%

Note  Notation

1
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4
5
121 Votes
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Solution 5 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
jle-quel   ELF x86 - Stack buffer overflow basic 4 en 21 October 2019 at 19:18
mrglm   ELF x86 - Stack buffer overflow basic 4 fr 19 October 2019 at 17:15
aliverix   ELF x86 - Stack buffer overflow basic 4 en 19 October 2019 at 00:19
Cr@zy_Legs   ELF x86 - Stack buffer overflow basic 4 fr 18 October 2019 at 15:54
Hexliath   ELF x86 - Stack buffer overflow basic 4 fr 18 October 2019 at 00:22
Noiche   ELF x86 - Stack buffer overflow basic 4 fr 16 October 2019 at 14:26
Dje   ELF x86 - Stack buffer overflow basic 4 fr 16 October 2019 at 12:41
khadija   ELF x86 - Stack buffer overflow basic 4 en 13 October 2019 at 17:00
Th1b4ud   ELF x86 - Stack buffer overflow basic 4 fr 13 October 2019 at 01:44
luffy()   ELF x86 - Stack buffer overflow basic 4 fr 12 October 2019 at 08:25

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% 11882 5 Lyes 11
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 8766 10 Lyes 10
pas_valide ELF x86 - Format string bug basic 1 4% 5815 15 Lu33Y 5
pas_valide ELF x64 - Stack buffer overflow - basic 3% 4306 20 Arod 5
pas_valide ELF x86 - Format string bug basic 2 2% 2870 20 Lyes 5
pas_valide ELF x86 - Race condition 3% 3909 20 Lu33Y 9
pas_valide ELF ARM - Stack buffer overflow - basic 1% 724 25 pickle 7
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 190 25 franb 2
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 2837 25 Lyes 2
pas_valide ELF x86 - Use After Free - basic 1% 383 25 Esad 3
pas_valide ELF ARM - Stack Spraying 1% 137 30 pickle 4
pas_valide ELF x86 - BSS buffer overflow 2% 2997 30 Lu33Y 6
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 2001 30 Lu33Y 5
pas_valide ELF x86 - Stack buffer overflow basic 6 2% 1640 30 TiWim 4
pas_valide ELF x86 - Format String Bug Basic 3 1% 775 35 Lyes 2
pas_valide ELF ARM - Basic ROP 1% 351 40 pickle 5
pas_valide ELF MIPS - Basic ROP 1% 62 40 dagger 1
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 556 40 sebbb 2
pas_valide ELF x64 - Logic bug 1% 114 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% 1471 50 Lu33Y 3
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 87 50 kikko 0
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1344 50 Lu33Y 1
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 778 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% 584 60 Arod 2
pas_valide ELF ARM - Race condition 1% 80 70 pickle 1
pas_valide ELF x64 - Browser exploit - Intro 1% 40 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% 633 75 Tosh 1
pas_valide ELF x86 - Remote Format String bug 1% 783 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% 283 85 franb 2
pas_valide LinKern x86 - Null pointer dereference 1% 303 90 franb 0
pas_valide LinKern x64 - Race condition 1% 186 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% 523 100 sm0k 3
pas_valide ELF x86 - Hardened binary 2 1% 410 100 sm0k 3
pas_valide ELF x86 - Hardened binary 3 1% 260 100 sm0k 1
pas_valide ELF x86 - Hardened binary 4 1% 291 100 sm0k 2
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 24 100 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% 172 105 Arod 3
pas_valide ELF ARM - Format String bug 1% 54 110 pickle 0
pas_valide ELF ARM - Use After Free 1% 52 110 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% 219 110 sm0k 1
pas_valide LinKern ARM - Stack Overflow 1% 31 110 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% 205 115 sm0k 3
pas_valide ELF x86 - Hardened binary 7 1% 168 115 Tosh 3
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 96 115 franb 1
pas_valide LinKern x64 - RowHammer 1% 25 115 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% 66 120 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