Binary Exploitation (CTF / Pwn) Expert Needed – Local & Remote Exploit Development

Project Details: Two separate challenge binaries (Linux ELF, x86_64) Source code will be provided libc.so.6 will be provided Remote services are available for both challenges Goal: exploit vulnerabilities to gain control of execution and call the internal function to retrieve flags Requirements: Analyze each binary and identify the vulnerability (e.g., buffer overflow, format string, etc.) Develop a working exploit for each challenge Ensure the exploit works both locally and against the remote service Use Python (pwntools) for exploit scripts Deliverables: [login to view URL] → working exploit for challenge 1 [login to view URL] → working exploit for challenge 2 [login to view URL] → explanation of vulnerabilities and exploitation steps [login to view URL] → both flags obtained from the challenges Required Skills: Strong experience in binary exploitation (pwn) Familiarity with GDB / pwndbg / gef Experience with pwntools (Python) Understanding of protections such as NX, PIE, RELRO Prior CTF or reverse engineering experience preferred Please include in your proposal: Examples of similar CTF or pwn challenges you have solved Your approach to solving this type of problem Estimated time to complete I will share details with you after contact confirmation. *Per task will be 8-10 Euro

Project ID: 40386064