App - System

These challenges will help you understand applicative vulnerabilities.

Login credentials are provided for different challenge, the goal is to obtain additional rights by exploiting program’s weaknesses and get a password to validate challs on the portal.

Prerequisite:
- GDB.
- Knowledges in ASM.
- Knowledges in C language.

 77 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution Date
pas_valide ELF x86 - Remote BSS buffer overflow 1% 695 75 Tosh 1 6 February 2012
pas_valide ELF x86 - Remote Format String bug 1% 862 75 Tosh 2 6 February 2012
pas_valide ELF x86 - Format string bug basic 1 4% 7491 15 Lu33Y 6 8 February 2012
pas_valide ELF x86 - BSS buffer overflow 2% 3526 30 Lu33Y 7 8 February 2012
pas_valide ELF x86 - Stack buffer overflow basic 4 2% 2325 30 Lu33Y 5 8 February 2012
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1528 50 Lu33Y 1 8 February 2012
pas_valide ELF x86 - Stack buffer and integer overflow 1% 1673 50 Lu33Y 3 8 February 2012
pas_valide ELF x86 - Race condition 3% 5052 20 Lu33Y 10 8 February 2012
pas_valide ELF x86 - Hardened binary 1 1% 629 100 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 2 1% 504 100 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 3 1% 308 100 sm0k 1 11 February 2012
pas_valide ELF x86 - Hardened binary 4 1% 346 100 sm0k 2 11 February 2012
pas_valide ELF x86 - Hardened binary 5 1% 263 110 sm0k 1 11 February 2012
pas_valide ELF x86 - Hardened binary 6 1% 246 115 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 7 1% 209 115 Tosh 3 21 January 2013
pas_valide ELF x86 - Stack buffer overflow basic 1 8% 16190 5 Lyes 11 25 March 2015
pas_valide ELF x86 - Format string bug basic 2 2% 3761 20 Lyes 5 8 April 2015
pas_valide ELF x86 - Stack buffer overflow basic 2 6% 11560 10 Lyes 10 10 April 2015
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 3735 25 Lyes 4 10 April 2015
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 737 60 Arod 2 20 May 2015
pas_valide ELF x86 - Format String Bug Basic 3 1% 988 35 Lyes 2 27 May 2015
pas_valide ELF x64 - Stack buffer overflow - basic 3% 5712 20 Arod 7 31 May 2015
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 1025 55 Arod 4 5 June 2015
pas_valide ELF x86 - Blind remote format string bug 1% 263 80 Lyes 2 8 June 2015
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 215 105 Arod 4 25 June 2015
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 142 115 Tosh 3 26 June 2015
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 106 130 Tosh 1 1 July 2015
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 698 40 sebbb 2 20 July 2015
pas_valide LinKern x86 - Buffer overflow basic 1 1% 381 85 franb 3 16 February 2016
pas_valide LinKern x86 - Null pointer dereference 1% 378 90 franb 0 16 February 2016
pas_valide LinKern x64 - Race condition 1% 238 95 franb 1 16 February 2016
pas_valide LinKern x64 - reentrant code 1% 135 100 franb 2 1 March 2016
pas_valide ELF x86 - Stack buffer overflow basic 6 1% 2190 30 TiWim 5 10 March 2016
pas_valide LinKern x86 - basic ROP 1% 194 110 franb 2 6 May 2016
pas_valide ELF x64 - Off-by-one bug 1% 115 110 NeedToLearn 2 19 May 2016
pas_valide Linkern x64 - Memory exploration 1% 86 120 franb 1 27 July 2016
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 129 115 franb 1 17 August 2016
pas_valide ELF x86 - Blind ROP 1% 106 120 franb 0 9 October 2016
pas_valide ELF x64 - Remote heap buffer overflow - fastbin 1% 234 80 franb 1 5 February 2017
pas_valide ELF ARM - Stack buffer overflow - basic 1% 1094 25 pickle 7 9 March 2017
pas_valide ELF ARM - Basic ROP 1% 558 40 pickle 5 11 March 2017
pas_valide ELF ARM - Heap Off-by-One 1% 49 115 pickle 1 11 March 2017
pas_valide ELF ARM - Format String bug 1% 78 110 pickle 2 14 March 2017
pas_valide ELF ARM - Alphanumeric shellcode 1% 39 100 pickle 2 16 March 2017
pas_valide LinKern ARM - vulnerable syscall 1% 114 85 pickle 0 22 March 2017
pas_valide ELF ARM - Use After Free 1% 82 110 pickle 0 22 March 2017
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 30 120 pickle 1 25 March 2017
pas_valide ELF ARM - Stack Spraying 1% 199 30 pickle 4 2 April 2017
pas_valide ELF ARM - Heap Overflow 1% 38 120 pickle 1 2 April 2017
pas_valide ELF ARM - Race condition 1% 112 70 pickle 1 3 June 2017
pas_valide ELF ARM - Heap format string bug 1% 67 105 franb 1 3 June 2017
pas_valide ELF x64 - Seccomp Whitelist 1% 48 120 pickle 0 3 June 2017
pas_valide ELF x64 - Logic bug 1% 158 50 sbrk 3 8 July 2017
pas_valide LinKern ARM - Stack Overflow 1% 50 110 pickle 0 24 July 2017
pas_valide ELF x64 - Heap feng-shui 1% 58 110 laxa 2 4 August 2017
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 94 70 sbrk 3 17 September 2017
pas_valide ELF x86 - Bug Hunting - Several issues 1% 84 50 sbrk 2 19 January 2018
pas_valide ELF x64 - Blind ROP 1% 75 135 franb 1 10 March 2018
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 352 25 franb 2 28 September 2018
pas_valide ELF MIPS - Basic ROP 1% 103 40 dagger 1 7 October 2018
pas_valide ELF MIPS - URLEncoded Format String bug 1% 21 100 pickle 0 7 October 2018
pas_valide ELF MIPS - Format String Glitch 1% 47 60 pickle 1 21 October 2018
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 44 100 pickle 0 23 October 2018
pas_valide ELF x64 - Browser exploit - Intro 1% 66 70 pickle 1 2 November 2018
pas_valide ELF x64 - Browser exploit - BitString 1% 29 135 pickle 0 15 December 2018
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 183 50 kikko 1 28 February 2019
pas_valide LinKern x64 - RowHammer 1% 54 115 pickle 1 17 March 2019
pas_valide LinKern x64 - SLUB off-by-one 1% 40 115 Tosh 2 9 May 2019
pas_valide ELF x86 - Use After Free - basic 1% 1118 25 Esad 3 26 May 2019
pas_valide PE32 - Stack buffer overflow basic 1% 886 10 Ech0 8 3 December 2019
pas_valide PE32 - Advanced stack buffer overflow 1% 147 35 Ech0 4 3 December 2019
pas_valide PE32+ Format string bug 1% 67 45 Ech0 1 3 December 2019
pas_valide PE32+ Basic ROP 1% 36 75 Ech0 0 6 December 2019
pas_valide WinKern x64 - Advanced stack buffer overflow - ROP 1% 18 120 __syscall 1 27 January 2020
pas_valide WinKern x64 - Use After Free 1% 11 120 __syscall 0 27 January 2020
pas_valide ELF x64 - Double free 1% 130 25 Esad 1 23 March 2021
pas_valide ELF x64 - Stack buffer overflow - PIE 1% 172 30 HomardBoy 1 26 March 2021