pwnable.kr - cmd2

이번 문제는 pwnable.kr - cmd2문제입니다.cmd1보다는 필터링이 상당히 많아져서 삽질좀 많이 했네여 123456789101112131415161718192021222324252627282930#include #include int filter(char* cmd){ int r=0; r += strstr(cmd, "=")!=0; r += strstr(cmd, "PATH")!=0; r += strstr(cmd, "export")!=0; r += strstr(cmd, "/")!=0; r += strstr(cmd, "`")!=0; r += strstr(cmd, "flag")!=0; return r;} extern char** environ;void delete_env(){ char** p; for(p..

2018.09.09