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PWN加载指定libc版本
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<time title="创建时间：2022-03-11 10:43:32 / 修改时间：11:21:42" itemprop="dateCreated datePublished" datetime="2022-03-11T10:43:32+08:00">2022-03-11</time>
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<h3 id="所有glibc可以在github仓库获得"><a href="#所有glibc可以在github仓库获得" class="headerlink" title="所有glibc可以在github仓库获得"></a>所有glibc可以在github仓库获得</h3><figure class="highlight awk"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">git clone https:<span class="regexp">//gi</span>thub.com<span class="regexp">/matrix1001/g</span>libc-all-<span class="keyword">in</span>-one.git</span><br></pre></td></tr></table></figure>
<h1 id="方法一：pwntools"><a href="#方法一：pwntools" class="headerlink" title="方法一：pwntools"></a>方法一：pwntools</h1><figure class="highlight stylus"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="selector-tag">p</span> = <span class="built_in">process</span>(<span class="selector-attr">[ld,filename]</span>,env={<span class="string">'LD_PRELOAD'</span>:env})</span><br></pre></td></tr></table></figure>
<p>ld为动态ld文件目录，filename为elf文件目录，env为libc文件目录。<br>例子：</p>
<figure class="highlight apache"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="attribute">p</span> = process([‘./ld-<span class="number">2</span>.<span class="number">27</span>.so’,filename],env={‘LD_PRELOAD’:’./libc-<span class="number">2</span>.<span class="number">27</span>.so’})</span><br></pre></td></tr></table></figure>
<h1 id="方法二：patchelf"><a href="#方法二：patchelf" class="headerlink" title="方法二：patchelf"></a>方法二：patchelf</h1><p>第一种，改变链接器+改变搜索路径</p>
<figure class="highlight apache"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="attribute">patchelf</span> --set-interpreter ./glibc-<span class="literal">all</span>-in-one-master/libs/<span class="number">2</span>.<span class="number">31</span>-<span class="number">0</span>ubuntu9.<span class="number">2</span>_amd64/ld-<span class="number">2</span>.<span class="number">31</span>.so --set-rpath ./glibc-<span class="literal">all</span>-in-one-master/libs/<span class="number">2</span>.<span class="number">31</span>-<span class="number">0</span>ubuntu9.<span class="number">2</span>_amd64 target_file</span><br></pre></td></tr></table></figure>
<p>第二种，改变链接器+直接改变动态库的路径</p>
<figure class="highlight apache"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="attribute">patchelf</span> --set-interpreter ./glibc-<span class="literal">all</span>-in-one-master/libs/<span class="number">2</span>.<span class="number">31</span>-<span class="number">0</span>ubuntu9.<span class="number">2</span>_amd64/ld-<span class="number">2</span>.<span class="number">31</span>.so --replace-needed libc.so.<span class="number">6</span> ./glibc-<span class="literal">all</span>-in-one-master/libs/<span class="number">2</span>.<span class="number">31</span>-<span class="number">0</span>ubuntu9.<span class="number">2</span>_amd64/libc.so.<span class="number">6</span> target_file</span><br></pre></td></tr></table></figure>
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