{"id":36164,"date":"2019-10-31T22:09:56","date_gmt":"2019-10-31T19:09:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-zavisimostyah-k-npm-paketu-s-ustanovshhikom-purescript-vyyavleny-vredonosnye-izmeneniya\/"},"modified":"2019-10-31T22:09:56","modified_gmt":"2019-10-31T19:09:56","slug":"v-zavisimostyah-k-npm-paketu-s-ustanovshhikom-purescript-vyyavleny-vredonosnye-izmeneniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/v-zavisimostyah-k-npm-paketu-s-ustanovshhikom-purescript-vyyavleny-vredonosnye-izmeneniya","title":{"rendered":"I npm-pakkens afh\u00e6ngigheder med PureScript-installatoren blev der identificeret skadelige \u00e6ndringer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>I afh\u00e6ngighederne til npm-pakken med PureScript-installatoren <noindex><a rel=\"nofollow\" href=\"https:\/\/harry.garrood.me\/blog\/malicious-code-in-purescript-npm-installer\/\">opdaget<\/a><\/noindex> skadelig kode, der viser sig ved fors\u00f8g p\u00e5 installation af pakken <noindex><a rel=\"nofollow\" href=\"https:\/\/www.npmjs.com\/package\/purescript\">purescript<\/a><\/noindex>. Skadelig kode er indlejret gennem afh\u00e6ngigheder <noindex><a rel=\"nofollow\" href=\"https:\/\/npmjs.com\/package\/load-from-cwd-or-npm\">load-from-cwd-or-npm<\/a><\/noindex> og <noindex><a rel=\"nofollow\" href=\"https:\/\/npmjs.com\/package\/rate-map\">rate-map<\/a><\/noindex>. Bem\u00e6rkelsesv\u00e6rdigt er, at vedligeholdelsen af pakker med disse afh\u00e6ngigheder h\u00e5ndteres af den oprindelige forfatter af npm-pakken med PureScript-installatoren, som indtil for nylig har v\u00e6ret ansvarlig for denne npm-pakke, men for omkring en m\u00e5ned siden blev pakken overdraget til andre vedligeholdere. <\/p>\n<p> Problemet blev opdaget af en af de nye vedligeholdere af pakken, som fik rettighederne til vedligeholdelsen overdraget efter mange uenigheder og sv\u00e6re diskussioner med den oprindelige forfatter af npm-pakken purescript. De nye vedligeholdere er ansvarlige for PureScript-kompilatoren og insisterede p\u00e5, at npm-pakken med dens installator skulle vedligeholdes af de samme vedligeholdere og ikke af en udenforst\u00e5ende. Forfatteren af npm-pakken med PureScript-installatoren var l\u00e6nge uenig, men efterf\u00f8lgende gav han efter og overf\u00f8rte adgangen til repository. Nogle afh\u00e6ngigheder forblev dog under hans kontrol.<\/p>\n<p>I sidste uge blev der udgivet en ny version af PureScript-kompilatoren 0.13.2, og<br \/>\nDe nye vedligeholdere har udarbejdet en tilsvarende opdatering af npm-pakken med installat\u00f8ren, i hvis afh\u00e6ngigheder der blev opdaget ondsindet kode. Den fraskrevne vedligeholder af npm-pakken med installat\u00f8ren PureScript udtalte, at hans konto var blevet kompromitteret af ukendte angribere. Ikke desto mindre var de ondsindede handlinger i sin nuv\u00e6rende form begr\u00e6nset til at sabotere installationen af pakken, som blev den f\u00f8rste version fra de nye vedligeholdere. De ondsindede handlinger bestod i en uendelig l\u00f8kke, der resulterede i en fejlmeddelelse, n\u00e5r man fors\u00f8gte at installere pakken med kommandoen &#171;npm i -g purescript&#187; uden at udf\u00f8re \u00e5benlyse ondsindede aktiviteter.<\/p>\n<p>Der blev identificeret to angreb. Flere timer efter den officielle udgivelse af den nye version af npm-pakken purescript blev der dannet en ny version af afh\u00e6ngigheden load-from-cwd-or-npm 3.0.2, hvor \u00e6ndringerne medf\u00f8rte, at kaldet til loadFromCwdOrNpm() i stedet for listen af n\u00f8dvendige bin\u00e6re filer til installation returnerede en str\u00f8m <noindex><a rel=\"nofollow\" href=\"https:\/\/nodejs.org\/api\/stream.html#stream_class_stream_passthrough\">PassThrough<\/a><\/noindex>, der spejlede indg\u00e5ende anmodninger som udg\u00e5ende v\u00e6rdier. <\/p>\n<p>Efter 4 dage, da udviklerne havde fundet \u00e5rsagen til fejlene og forberedte sig p\u00e5 at udsende en opdatering for at udelukke load-from-cwd-or-npm fra afh\u00e6ngighederne, blev der af angribere udgivet endnu en opdatering af load-from-cwd-or-npm 3.0.4, hvor den ondsindede kode blev fjernet. Ikke desto mindre blev der n\u00e6sten straks udsendt en opdatering af en anden afh\u00e6ngighed, rate-map 1.0.3, hvor der blev tilf\u00f8jet en rettelse, som blokerede callback-kald til indl\u00e6sning. Det vil sige, at \u00e6ndringerne i de nye versioner af load-from-cwd-or-npm og rate-map var klare sabotagehandlinger. Desuden var der i den ondsindede kode en kontrol, der aktiverede fejlhandlinger kun ved installation af versionen fra nye maintainere og overhovedet ikke viste sig ved installation af \u00e6ldre versioner.<\/p>\n<p>Udviklerne l\u00f8ste problemet ved at udsende en opdatering, hvor de problematiske afh\u00e6ngigheder blev fjernet. For at udelukke spredning af kompromitteret kode p\u00e5 brugernes systemer efter et fors\u00f8g p\u00e5 at installere den problematiske version, anbefales det at slette indholdet i mapperne node_modules og filerne package-lock.json, hvorefter versionen af purescript b\u00f8r s\u00e6ttes til minimum 0.13.2.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51093\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u043a npm-\u043f\u0430\u043a\u0435\u0442\u0443 \u0441 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0449\u0438\u043a\u043e\u043c PureScript \u0432\u044b\u044f\u0432\u043b\u0435\u043d \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0439 \u043a\u043e\u0434, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0438\u0439\u0441\u044f \u043f\u0440\u0438 \u043f\u043e\u043f\u044b\u0442\u043a\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 purescript. \u0412\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0439 \u043a\u043e\u0434 \u0432\u0441\u0442\u0440\u043e\u0435\u043d \u0447\u0435\u0440\u0435\u0437 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 load-from-cwd-or-npm \u0438 rate-map. \u041f\u0440\u0438\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e, \u0447\u0442\u043e \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0441 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438 \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u0442\u0441\u044f \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u044b\u0439 \u0430\u0432\u0442\u043e\u0440 npm-\u043f\u0430\u043a\u0435\u0442\u0430 \u0441 \u0438\u043d\u0441\u0442\u0430\u043b\u043b\u044f\u0442\u043e\u0440\u043e\u043c PureScript, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0434\u043e \u043d\u0435\u0434\u0430\u0432\u043d\u0438\u0445 \u043f\u043e\u0440 \u0437\u0430\u043d\u0438\u043c\u0430\u043b\u0441\u044f \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u0434\u0430\u043d\u043d\u043e\u0433\u043e npm-\u043f\u0430\u043a\u0435\u0442\u0430, \u043d\u043e \u043e\u043a\u043e\u043b\u043e \u043c\u0435\u0441\u044f\u0446\u0430 \u043d\u0430\u0437\u0430\u0434 \u043f\u0430\u043a\u0435\u0442 \u043f\u0435\u0440\u0435\u0448\u0451\u043b \u043a \u0434\u0440\u0443\u0433\u0438\u043c \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u043c. [&hellip;]<\/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-36164","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u043a npm-\u043f\u0430\u043a\u0435\u0442\u0443 \u0441 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0449\u0438\u043a\u043e\u043c PureScript \u0432\u044b\u044f\u0432\u043b\u0435\u043d \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0439 \u043a\u043e\u0434, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0438\u0439\u0441\u044f.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" 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