Um dos desenvolvedores de pacotes JavaScript conduziu um experimento criando e publicando no reposit\u00f3rio NPM o pacote «everything», que abrange todas as depend\u00eancias de todos os pacotes existentes no reposit\u00f3rio. Para implementar essa possibilidade, o pacote «everything» est\u00e1 vinculado diretamente a cinco pacotes «@everything-registry\/chunk-N», que, por sua vez, t\u00eam depend\u00eancias de mais de 3000 pacotes «sub-chunk-N», cada um dos quais est\u00e1 vinculado a 800 pacotes existentes no reposit\u00f3rio. <\/p>\n
A publica\u00e7\u00e3o do «everything» no NPM resultou em dois efeitos interessantes. Primeiro, o pacote «everything» se tornou uma esp\u00e9cie de ferramenta para realizar ataques DoS, pois a tentativa de instala\u00e7\u00e3o leva ao download de milh\u00f5es de pacotes hospedados no NPM, esgotando o espa\u00e7o em disco dispon\u00edvel ou interrompendo a execu\u00e7\u00e3o de processos de build. De acordo com as estat\u00edsticas, o pacote NPM foi baixado cerca de 250 vezes, mas nada impede que ele seja adicionado como depend\u00eancia a outro pacote ap\u00f3s a invas\u00e3o da conta do desenvolvedor para realizar um ataque. Al\u00e9m disso, algumas ferramentas e servi\u00e7os que monitoram e verificam novos pacotes publicados no NPM acabaram sendo involuntariamente vulner\u00e1veis ao ataque. <\/p>\n
Em segundo lugar, a publica\u00e7\u00e3o do pacote «everything» efetivamente bloqueou a possibilidade de remover qualquer pacote no NPM que estivesse na lista de suas depend\u00eancias. Um pacote no NPM pode ser removido pelo autor apenas se n\u00e3o estiver sendo utilizado nas depend\u00eancias de outros pacotes, mas ap\u00f3s a publica\u00e7\u00e3o do «everything», todas as depend\u00eancias foram abrangidas por todos os pacotes no reposit\u00f3rio. \u00c9 not\u00e1vel que a remo\u00e7\u00e3o do pr\u00f3prio pacote «everything» tamb\u00e9m foi bloqueada, pois h\u00e1 9 anos um pacote de teste «everything-else» foi publicado no reposit\u00f3rio, onde a string «everything» foi indicada na lista de depend\u00eancias. Assim, ap\u00f3s a publica\u00e7\u00e3o, o pacote «everything» acabou se tornando uma depend\u00eancia de outro pacote. \u041e\u0434\u0438\u043d \u0438\u0437 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 JavaScript-\u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u043f\u0440\u043e\u0432\u0451\u043b \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442 \u0441 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435\u043c \u0438 \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u0435\u043c \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 NPM \u043f\u0430\u043a\u0435\u0442\u0430 «everything», \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u0435\u0442 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438 \u0432\u0441\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043f\u0430\u043a\u0435\u0442\u044b \u0432 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438. \u0414\u043b\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u043e\u0434\u043e\u0431\u043d\u043e\u0439 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043f\u0430\u043a\u0435\u0442 «everything» \u0441\u0432\u044f\u0437\u0430\u043d \u043f\u0440\u044f\u043c\u044b\u043c\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438 \u0441 \u043f\u044f\u0442\u044c\u044e \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438 «@everything-registry\/chunk-N», \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0432 \u0441\u0432\u043e\u044e \u043e\u0447\u0435\u0440\u0435\u0434\u044c \u043f\u0440\u0438\u0432\u044f\u0437\u044b\u0432\u0430\u044e\u0442\u0441\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438 \u043a \u0431\u043e\u043b\u0435\u0435 3000 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 «sub-chunk-N», \u0432 \u043a\u0430\u0436\u0434\u043e\u043c \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u0432\u044f\u0437\u043a\u0430 \u043a 800 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-112714","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Experimento de cria\u00e7\u00e3o de um pacote NPM dependente de todos os pacotes no reposit\u00f3rio | ProHoster","description":"Um dos desenvolvedores de pacotes JavaScript realizou um 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"