{"id":181731,"date":"2026-05-25T20:48:17","date_gmt":"2026-05-25T18:48:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-uyazvimost-v-rewrite-module-nginx"},"modified":"2026-05-25T20:48:17","modified_gmt":"2026-05-25T18:48:17","slug":"novaya-uyazvimost-v-rewrite-module-nginx","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/novaya-uyazvimost-v-rewrite-module-nginx","title":{"rendered":"Uus haavatavus nginx'i rewrite-moodulis","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <\/p>\n<p>Varsti p\u00e4rast avastamist <a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/security\/18295901\">18-aastase<\/a> potentsiaalse RCE k\u00f5rval avastati veel \u00fcks, <a rel=\"nofollow\" href=\"https:\/\/www.cve.org\/CVERecord?id=CVE-2026-9256\">CVE-2026-9256<\/a>, seekord kestis veel kauem&nbsp;&mdash; 21 aastat, alustades versioonist 0.1.17, mis ilmus 2005. aasta alguses.<\/noindex><br \/>\nHaavatavuse \u00e4rakasutamiseks on vajalik, et serveri konfiguraatsioonis oleks rewrite-direktiiv, millel:\n<\/p>\n<ul>\n<li> esimeses argumendis on kattuvad regulaarsed v\u00e4ljendid,\n<\/li>\n<li> teisest kasutatakse kahte v\u00f5i enamat neist, kuid muutujat ei tohi kasutada,\n<\/li>\n<li> samuti kas on m\u00e4\u00e4ratud t\u00fc\u00fcp &#171;redirect&#187; v\u00f5i teise argumendi parameetrid asuvad p\u00e4rast k\u00fcsim\u00e4rki.\n<\/li>\n<\/ul>\n<p>\nN\u00e4ited:<br \/>\nrewrite ^\/((.*))$ http:\/\/127.0.0.1:8080\/$1$2 redirect;<br \/>\nrewrite ^\/((.*))$ http:\/\/127.0.0.1:8080\/?$1$2;<\/p>\n<p>M\u00f5lemad saavad puskarite \u00fclevoolu, kui nad t\u00f6\u00f6tlevad p\u00e4ringut &#171;\/++++++++++++++++++++++++++++++&#187;.<\/p>\n<p>Nagu eelmine haavatavus, v\u00f5ib ka selle korral puhverpikkuse arvutus mitte katta tegelikku kirjutatud andmete hulka&nbsp;&mdash; pikkuse arvutamisel ei arvestatud igal pool v\u00f5imalikke p\u00f5genemisi.<\/p>\n<p>\u00dclaltoodud v\u00f5ib viia nginx t\u00f6\u00f6protsessi kokkuvarisemiseni ja ALSR puudumisel RCE-ni. Leevendavaks asjaoluks on siiski v\u00e4iksem t\u00f5en\u00e4osus leida haavatavaid konstruktsioone konfiguratsioonist kui eelmine kord.<\/p>\n<p>Viga on parandatud versioonides 1.30.2 ja 1.31.1 (<a rel=\"nofollow\" href=\"https:\/\/github.com\/nginx\/nginx\/commit\/ca4f92a27464ae6c2082245e4f67048c633aa032\">paranduse commit<\/a>).\n<\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/security\/18300022\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u0441\u043a\u043e\u0440\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f 18-\u043b\u0435\u0442\u043d\u0435\u0433\u043e \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0433\u043e RCE \u0431\u044b\u043b\u043e \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043e \u0435\u0449\u0451 \u043e\u0434\u043d\u043e, CVE-2026-9256, \u043d\u0430 \u044d\u0442\u043e\u0442 \u0440\u0430\u0437 \u043f\u0440\u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u0432\u0448\u0435\u0435 \u0435\u0449\u0451 \u0434\u043e\u043b\u044c\u0448\u0435&nbsp;&mdash; 21 \u0433\u043e\u0434, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 0.1.17, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0439 \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 2005 \u0433\u043e\u0434\u0430. \u0414\u043b\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u044b rewrite, \u0443 \u043a\u043e\u0442\u043e\u0440\u043e\u0439: \u0432 \u043f\u0435\u0440\u0432\u043e\u043c \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u0435 \u0438\u043c\u0435\u044e\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0438\u0435\u0441\u044f \u0432\u044b\u0434\u0435\u043b\u044f\u0435\u043c\u044b\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b \u0440\u0435\u0433\u0443\u043b\u044f\u0440\u043d\u043e\u0433\u043e \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f, \u0432\u043e \u0432\u0442\u043e\u0440\u043e\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0434\u0432\u0430 \u0438\u043b\u0438 \u0431\u043e\u043b\u044c\u0448\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181731","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u0441\u043a\u043e\u0440\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f 18-\u043b\u0435\u0442\u043d\u0435\u0433\u043e \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0433\u043e RCE \u0431\u044b\u043b\u043e \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043e \u0435\u0449\u0451 \u043e\u0434\u043d\u043e, CVE-2026-9256, \u043d\u0430 \u044d\u0442\u043e\u0442 \u0440\u0430\u0437 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\u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043e \u0435\u0449\u0451 \u043e\u0434\u043d\u043e, CVE-2026-9256, \u043d\u0430 \u044d\u0442\u043e\u0442 \u0440\u0430\u0437 \u043f\u0440\u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043e\u0432\u0430\u0432\u0448\u0435\u0435 \u0435\u0449\u0451 \u0434\u043e\u043b\u044c\u0448\u0435 \u2014 21 \u0433\u043e\u0434, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 0.1.17, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0439 \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 2005 \u0433\u043e\u0434\u0430. \u0414\u043b\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0435 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u0438\u0440\u0435\u043a\u0442\u0438\u0432\u044b 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