{"id":37292,"date":"2019-10-31T22:16:49","date_gmt":"2019-10-31T19:16:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-webmin-najden-bekdor-pozvolyayushhij-udalyonno-poluchit-dostup-s-pravami-root\/"},"modified":"2019-10-31T22:16:49","modified_gmt":"2019-10-31T19:16:49","slug":"v-webmin-najden-bekdor-pozvolyayushhij-udalyonno-poluchit-dostup-s-pravami-root","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/v-webmin-najden-bekdor-pozvolyayushhij-udalyonno-poluchit-dostup-s-pravami-root","title":{"rendered":"N\u00eb Webmin \u00ebsht\u00eb gjetur nj\u00eb backdoor q\u00eb lejon akses t\u00eb larg\u00ebt me t\u00eb drejta root","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

N\u00eb paket\u00ebn Webmin<\/a><\/noindex>, e cila ofron mjete p\u00ebr menaxhimin e larg\u00ebt t\u00eb serverit, u zbulua<\/a><\/noindex> nj\u00eb backdoor (CVE-2019-15107<\/a><\/noindex>), i zbuluar n\u00eb nd\u00ebrtimet zyrtare t\u00eb projektit, q\u00eb shp\u00ebrndahen<\/a><\/noindex> n\u00ebp\u00ebrmjet Sourceforge dhe t\u00eb rekomanduara<\/a><\/noindex> n\u00eb faqen kryesore. Backdoor ishte i pranish\u00ebm n\u00eb nd\u00ebrtimet nga 1.882 deri n\u00eb 1.921 p\u00ebrfshir\u00eb (n\u00eb git-repozitorin kodi me backdoor mungon) dhe lejonte ekzekutimin e komandeve shell t\u00eb rastit n\u00eb sistem me t\u00eb drejtat root pa kaluar verifikimin. <\/p>\n

P\u00ebr t\u00eb sulmuar, \u00ebsht\u00eb e mjaftueshme q\u00eb t\u00eb ket\u00eb nj\u00eb port rrjetik t\u00eb hapur me Webmin dhe aktivitet n\u00eb nd\u00ebrfaqen web t\u00eb funksionit p\u00ebr ndryshimin e fjal\u00ebkalimit t\u00eb vjet\u00ebr (q\u00eb aktivizohet n\u00eb nd\u00ebrtimet 1.890, por n\u00eb versionet e tjera \u00ebsht\u00eb \u00e7aktivizuar). Problemi \u00ebsht\u00eb eliminuar<\/a><\/noindex> n\u00eb p\u00ebrdit\u00ebsimin<\/a><\/noindex> 1.930. Si nj\u00eb mas\u00eb t\u00eb p\u00ebrkohshme p\u00ebr t\u00eb bllokuar backdoor-in, mjafton t\u00eb hiqni konfigurimin \u00abpasswd_mode=\u00bb nga skedari i konfigurimit \/etc\/webmin\/miniserv.conf. P\u00ebr testing \u00ebsht\u00eb p\u00ebrgatitur prototipin e eksploitit<\/a><\/noindex>.<\/p>\n

Problemi ishte zbuluar<\/a><\/noindex> n\u00eb skriptin password_change.cgi, n\u00eb t\u00eb cilin p\u00ebr verifikimin e fjal\u00ebkalimit t\u00eb vjet\u00ebr t\u00eb futur n\u00eb web-form\u00eb p\u00ebrdoret<\/a><\/noindex> funksioni unix_crypt, t\u00eb cilit i kalon fjal\u00ebkalimin e marr\u00eb nga p\u00ebrdoruesi pa ekzekutimin e karaktereve speciale. N\u00eb git-repozitorin kjo funksion \u00ebsht\u00eb<\/a><\/noindex> nj\u00eb mb\u00ebshtetje mbi modulimin Crypt::UnixCrypt dhe nuk paraqet rrezik, por n\u00eb arkivin e kodit t\u00eb ofruar n\u00eb faqen Sourceforge, ekzekutohet nj\u00eb kod q\u00eb lidhet drejtp\u00ebrdrejt me \/etc\/shadow, por e b\u00ebn k\u00ebt\u00eb duke p\u00ebrdorur nj\u00eb konstrukcion shell. P\u00ebr t\u00eb kryer sulmin, mjafton t\u00eb vendosni n\u00eb fush\u00ebn e fjal\u00ebs s\u00eb vjet\u00ebr nj\u00eb simbol \u00ab|\u00bb dhe kodi pas tij do t\u00eb ekzekutohet me t\u00eb drejtat root n\u00eb server.<\/p>\n

Sipas sipas<\/a><\/noindex> deklarat\u00ebs s\u00eb zhvilluesve t\u00eb Webmin, kodi keqdash\u00ebs ishte futur si rezultat i kompromentimit t\u00eb infrastruktur\u00ebs t\u00eb projektit. Detajet nuk jan\u00eb b\u00ebr\u00eb ende t\u00eb njohura, prandaj nuk \u00ebsht\u00eb e qart\u00eb n\u00ebse hack-u u kufizua n\u00eb marrjen e kontrollit mbi llogarin\u00eb n\u00eb Sourceforge apo ndikoi dhe n\u00eb elemente t\u00eb tjera t\u00eb infrastruktur\u00ebs zhvillimore dhe t\u00eb nd\u00ebrtimit t\u00eb Webmin. Kodi keqdash\u00ebs ishte i pranish\u00ebm n\u00eb arkivat q\u00eb nga marsi i vitit 2018. Problemi gjithashtu preku nd\u00ebrtimet Usermin<\/a><\/noindex>. Aktualisht t\u00eb gjitha arkivat e ngarkimit jan\u00eb rikonstruktuar nga Git.<\/p>\n

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

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

\u0412 \u043f\u0430\u043a\u0435\u0442\u0435 Webmin, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u043c \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0434\u043b\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u043c, \u0432\u044b\u044f\u0432\u043b\u0435\u043d \u0431\u044d\u043a\u0434\u043e\u0440 (CVE-2019-15107), \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0439 \u0432 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u0430, \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u043c\u044b\u0445 \u0447\u0435\u0440\u0435\u0437 Sourceforge \u0438 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c \u0441\u0430\u0439\u0442\u0435. \u0411\u044d\u043a\u0434\u043e\u0440 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u043b \u0432 \u0441\u0431\u043e\u0440\u043a\u0430\u0445 \u0441 1.882 \u043f\u043e 1.921 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (\u0432 git-\u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 \u043a\u043e\u0434 \u0441 \u0431\u044d\u043a\u0434\u043e\u0440\u043e\u043c \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u043b) \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u043b \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e \u0431\u0435\u0437 \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0435 shell-\u043a\u043e\u043c\u0430\u043d\u0434\u044b \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root. \u0414\u043b\u044f […]<\/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-37292","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\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\udd47Nj\u00eb backdoor u gjet n\u00eb Webmin, q\u00eb lejon qasje t\u00eb larg\u00ebt me t\u00eb drejtat root | ProHoster","description":"N\u00eb paket\u00ebn Webmin, e cila ofron mjete p\u00ebr menaxhimin e larg\u00ebt t\u00eb 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