soal pwn fix

ku-ingin-lompat-sambil-jumping/return.c → ku-ingin-lompat-sambil-jumping/ingin_melompat2.c

@@ -1,15 +1,20 @@
+//gcc -g -no-pie -fno-stack-protector -fno-pic -fno-builtin -mpreferred-stack-boundary=2 -m32 ingin_melompat2.c -o ingin_melompat2
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
 
-
 int wallet = 18;
 char burung[8];
 
 void secret_message(){
   system("/bin/sh");
 }
+void init(){
+setvbuf(stdin, NULL, _IONBF, 0);
+setvbuf(stdout, NULL, _IONBF, 0);
+setvbuf(stderr, NULL, _IONBF, 0);
+}
 void buy_flag(){
   if(wallet < 999999999999) printf("kamu terlalu lemah dude :)\n");
     else secret_message();
@@ -18,6 +23,7 @@ void jual_burung(){
     char buffer[64];
     getchar();
     printf("burung apa yang kamu mau jual ?\n");
+    fflush(stdout);
     fgets(buffer, sizeof(buffer), stdin);
     printf("yang kamu jual : ");
     printf(buffer);
@@ -46,6 +52,7 @@ int main()
 {
   while(1){
   char pilihan;
+  init();
   menu();
   printf(">>");
   fflush(stdout);

ku-ingin-melompat/return.c → ku-ingin-melompat/ingin_melompat.c

@@ -1,3 +1,4 @@
+//gcc -g -no-pie -fno-stack-protector -fno-pic -fno-builtin -mpreferred-stack-boundary=2 -m32 ingin_melompat.c -o ingin_melompat     
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -9,6 +10,13 @@ char burung[8];
 void secret_message(){
   system("/bin/sh");
 }
+
+void init(){
+setvbuf(stdin, NULL, _IONBF, 0);
+setvbuf(stdout, NULL, _IONBF, 0);
+setvbuf(stderr, NULL, _IONBF, 0);
+}
+
 void buy_flag(){
   if(wallet < 999999999999) printf("kamu terlalu lemah dude :)\n");
     else secret_message();
@@ -34,6 +42,7 @@ int main()
 {
   while(1){
   char pilihan;
+  init();
   menu();
   printf(">>");
   fflush(stdout);

service-diary/buffer32.c → service-diary/diary32.c

@@ -1,3 +1,4 @@
+//gcc -g -no-pie -fno-stack-protector -fno-pic -fno-builtin -mpreferred-stack-boundary=2 -m32 diary.c -o diary
 #include <stdio.h>
 #include <string.h>
 #include <limits.h>
@@ -6,6 +7,11 @@ void not_even_called(){
   puts("\nWelcome Garuda Muda\n");
   system("/bin/sh");
 }
+void init(){
+setvbuf(stdin, NULL, _IONBF, 0);
+setvbuf(stdout, NULL, _IONBF, 0);
+setvbuf(stderr, NULL, _IONBF, 0);
+}
 
 void tulisan(){
 puts("██████╗ ██╗ █████╗ ██████╗ ██╗   ██╗    ███████╗███████╗██████╗ ██╗   ██╗██╗ ██████╗███████╗");
@@ -18,23 +24,24 @@ puts("╚═════╝ ╚═╝╚═╝  ╚═╝╚═╝  ╚═╝
 
 int main()
 {
-  char a[4];
-  int b;
-  char c[16];
+init();
+char a[4];
+int b;
+char c[16];
 
-  strcpy(a,"KSL");
-  b = 14045;
+strcpy(a,"KSL");
+b = 14045;
 
-  tulisan();
-  printf("Welcome to Diary Application \n");
-  printf("write something : ");
-  gets(c); 
-  if(strlen(c) > 20){
-    printf("karakter gak boleh lebih dari 20\n");
-  } else{ 
-    if(b == 0x67616c66) not_even_called();
-    else printf("isi diary kamu : %s\n",c);
-  }
+tulisan();
+printf("Welcome to Diary Application \n");
+printf("write something : ");
+gets(c); 
+if(strlen(c) > 20){
+  printf("karakter gak boleh lebih dari 20\n");
+} else{ 
+  if(b == 0x67616c66) not_even_called();
+  else printf("isi diary kamu : %s\n",c);
+}
 exit(0);
 }
 

service-diary/buffer64.c → service-diary/diary64.c

@@ -1,3 +1,4 @@
+//gcc -g -no-pie -fno-stack-protector -fno-pic -fno-builtin diary64.c -o diary64     
 #include <stdio.h>
 #include <string.h>
 #include <limits.h>
@@ -7,6 +8,12 @@ void not_even_called(){
  system("/bin/sh");
 }
 
+void init(){
+setvbuf(stdin, NULL, _IONBF, 0);
+setvbuf(stdout, NULL, _IONBF, 0);
+setvbuf(stderr, NULL, _IONBF, 0);
+}
+
 void tulisan(){
 puts("██████╗ ██╗ █████╗ ██████╗ ██╗   ██╗    ███████╗███████╗██████╗ ██╗   ██╗██╗ ██████╗███████╗");
 puts("██╔══██╗██║██╔══██╗██╔══██╗╚██╗ ██╔╝    ██╔════╝██╔════╝██╔══██╗██║   ██║██║██╔════╝██╔════╝");
@@ -18,23 +25,24 @@ puts("╚═════╝ ╚═╝╚═╝  ╚═╝╚═╝  ╚═╝
 
 int main()
 {
- char a[4];
- int b;
- char c[64];
+init();
+char a[4];
+int b;
+char c[64];
 
- strcpy(a,"KSL");
- b = 14045;
+strcpy(a,"KSL");
+b = 14045;
 
- tulisan();
- printf("Welcome to Diary Application \n");
- printf("write something : ");
- gets(c);
- if(strlen(c) > 20){
-   printf("karakter gak boleh lebih dari 20\n");
- } else{
-   if(b == 0x67616c66) not_even_called();
-   else printf("isi diary kamu : %s\n",c);
- }
- exit(0);
+tulisan();
+printf("Welcome to Diary Application \n");
+printf("write something : ");
+gets(c);
+if(strlen(c) > 20){
+ printf("karakter gak boleh lebih dari 20\n");
+} else{
+ if(b == 0x67616c66) not_even_called();
+ else printf("isi diary kamu : %s\n",c);
+}
+exit(0);
 }