[{"_1":2,"_33":-5,"_34":-5},"loaderData",{"_3":4},"routes/challenges.$slug",{"_5":6},"challenge",{"_7":8,"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":20,"_21":22,"_23":24,"_30":31},"slug","buffer-overflow-i","name","Buffer Overflow I","category","Secure Coding","description","This code is not following the C Secure Coding Standard; fix the vulnerability to get the flag. flag format: flag{***********************************}","descriptionHtml","This code is not following the C Secure Coding Standard; fix the vulnerability to get the flag. \n \n flag format: \n flag{***********************************}","labDetails","Prerequisites & Requirements C Programming: Basic understanding of character arrays (buffers) and the string.h library. Linux CLI: Familiarity with basic terminal navigation and text editing ( e.g ., vim or nano). Security Fundamentals: Conceptual knowledge of how stack-based buffer overflows occur through unbounded string copies. What will you learn? Vulnerability Identification: Recognizing unsafe standard library functions ( e.g ., strcpy) that lack internal bounds checking. Secure API Adoption: Migrating to safer alternatives like strncpy to enforce destination buffer limits. Defensive String Management: Implementing manual null-termination to prevent \"off-by-one\" vulnerabilities and memory leaks. Remediation Verification: Using automated test suites to validate security patches. Tools Editor: Vim (for source code modification). Compiler: GCC-based environment (provided via web terminal).","labDetailsHtml","

Prerequisites & Requirements

C Programming: Basic understanding of character arrays (buffers) and the \n string.h\n library.
Linux CLI: Familiarity with basic terminal navigation and text editing ( \n e.g\n ., vim or nano).
Security Fundamentals: Conceptual knowledge of how stack-based buffer overflows occur through unbounded string copies.

What will you learn?

Vulnerability Identification: Recognizing unsafe standard library functions ( \n e.g\n ., strcpy) that lack internal bounds checking.
Secure API Adoption: Migrating to safer alternatives like strncpy to enforce destination buffer limits.
Defensive String Management: Implementing manual null-termination to prevent \"off-by-one\" vulnerabilities and memory leaks.
Remediation Verification: Using automated test suites to validate security patches.

Tools

Editor: Vim (for source code modification).
Compiler: GCC-based environment (provided via web terminal).

","level","Easy","tags",[25,26,27,28,29],"Buffer Handling","Memory Safety","Boundary Checking","Defensive Programming","Code Review","jobPositions",[32],"Application Security Administrator","actionData","errors"]

Buffer Overflow I

Overview

Job Positions

Tags