{"id":36861,"date":"2019-10-31T22:14:20","date_gmt":"2019-10-31T19:14:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/najden-metod-dlya-opredeleniya-prosmotra-v-rezhime-inkognito-v-chrome-76\/"},"modified":"2019-10-31T22:14:20","modified_gmt":"2019-10-31T19:14:20","slug":"najden-metod-dlya-opredeleniya-prosmotra-v-rezhime-inkognito-v-chrome-76","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/najden-metod-dlya-opredeleniya-prosmotra-v-rezhime-inkognito-v-chrome-76","title":{"rendered":"Une m\u00e9thode a \u00e9t\u00e9 trouv\u00e9e pour d\u00e9tecter la navigation en mode incognito dans Chrome 76","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans Chrome 76, une faille a \u00e9t\u00e9<\/a><\/noindex> corrig\u00e9e dans l'impl\u00e9mentation de l'API FileSystem, permettant de d\u00e9terminer \u00e0 partir d'une application web l'utilisation du mode incognito. \u00c0 partir de Chrome 76, au lieu de bloquer l'acc\u00e8s \u00e0 l'API FileSystem, qui \u00e9tait utilis\u00e9 comme un indicateur d'activit\u00e9 du mode incognito, le navigateur a cess\u00e9 de restreindre l'API FileSystem, mais a nettoy\u00e9 les modifications apport\u00e9es apr\u00e8s la session. Il s'est av\u00e9r\u00e9 que la nouvelle impl\u00e9mentation pr\u00e9sente<\/a><\/noindex> des d\u00e9fauts qui permettent, comme autrefois, de d\u00e9terminer l'activit\u00e9 du mode incognito.<\/p>\n

Le probl\u00e8me r\u00e9side dans le fait que la session avec l'API FileSystem en mode incognito est temporaire, et que les donn\u00e9es ne sont pas enregistr\u00e9es sur le disque, mais sont conserv\u00e9es en m\u00e9moire vive. En cons\u00e9quence, en mesurant<\/a><\/noindex> le temps de sauvegarde des donn\u00e9es via l'API FileSystem et les \u00e9carts qui en r\u00e9sultent (lors de l'enregistrement en RAM, des caract\u00e9ristiques constantes sont enregistr\u00e9es, tandis que lors de l'\u00e9criture sur le disque, les d\u00e9lais changent), on peut juger assez concr\u00e8tement si la page est consult\u00e9e en mode incognito ou non. Le d\u00e9savantage de cette m\u00e9thode est le processus de mesure des \u00e9carts, qui peut durer environ une minute (d\u00e9monstration<\/a><\/noindex>). <\/p>\n

Cependant, dans Chrome 76, une autre probl\u00e8me<\/a><\/noindex>faille reste non corrig\u00e9e, qui permet de juger de l'activit\u00e9 du mode incognito sur la base de l'\u00e9valuation des restrictions mises en place par l'API Quota Management<\/a><\/noindex>. Pour le stockage temporaire utilis\u00e9 en mode incognito, des limites diff\u00e9rentes sont \u00e9tablies de celles de la conservation compl\u00e8te sur disque.<\/p>\n

Rappelons que les sites int\u00e9ress\u00e9s par la d\u00e9finition du mode incognito sont ceux qui fonctionnent sur un mod\u00e8le d'acc\u00e8s complet par abonnement payant (paywall). Pour attirer un nouveau public, ces sites offrent aux nouveaux utilisateurs un acc\u00e8s complet d\u00e9mo pendant un certain temps, ce qui est activement utilis\u00e9 pour contourner le paywall. Le moyen le plus simple d'acc\u00e9der au contenu payant dans ces syst\u00e8mes est d'utiliser le mode incognito, dans lequel le site consid\u00e8re que l'utilisateur a ouvert la page pour la premi\u00e8re fois. Ce comportement ne satisfait pas les \u00e9diteurs, qui ont donc utilis\u00e9 activement la faille li\u00e9e \u00e0 l'API FileSystem pour exiger la d\u00e9sactivation du mode incognito pour continuer \u00e0 naviguer.<\/p>\n

<\/a><\/noindex><\/p>\n

Source : opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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