{"id":86356,"date":"2020-06-24T13:42:00","date_gmt":"2020-06-24T11:42:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-zashhishhyonnom-brauzere-bitdefender-safepay-privodyashhaya-k-vypolneniyu-koda"},"modified":"2020-06-24T13:42:00","modified_gmt":"2020-06-24T11:42:00","slug":"uyazvimost-v-zashhishhyonnom-brauzere-bitdefender-safepay-privodyashhaya-k-vypolneniyu-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/uyazvimost-v-zashhishhyonnom-brauzere-bitdefender-safepay-privodyashhaya-k-vypolneniyu-koda","title":{"rendered":"Nj\u00eb vulnerabilitet n\u00eb shfletuesin e sigurt Bitdefender SafePay, q\u00eb \u00e7on n\u00eb ekzekutimin e kodit","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Vladimir Palant, krijuesi i Adblock Plus, identifikuar<\/a><\/noindex> vulnerabiliteti<\/a><\/noindex> (CVE-2020-8102<\/a><\/noindex>) n\u00eb shfletuesin web t\u00eb specializuar Safepay, i bazuar n\u00eb motorin Chromium, i ofruar si pjes\u00eb e paket\u00ebs antivirus Bitdefender Total Security 2020 dhe i cili fokusohet n\u00eb rritjen e siguris\u00eb s\u00eb p\u00ebrdoruesit n\u00eb internet (p.sh., ofrohet nj\u00eb izolim shtes\u00eb kur aksesoni banka dhe sisteme pagesash). Vulnerabiliteti lejon q\u00eb faqet e hapura n\u00eb shfletues t\u00eb ekzekutojn\u00eb kod t\u00eb arbitratur n\u00eb nivelin e sistemit operativ.<\/p>\n

Arsyeja e problemit \u00ebsht\u00eb se antivirus Bitdefender kryen interceptimin lokal t\u00eb trafikut HTTPS p\u00ebrmes z\u00ebvend\u00ebsimit t\u00eb certifikat\u00ebs TLS origjinale t\u00eb faqes. N\u00eb sistemin e klientit instalohet nj\u00eb certifikat\u00eb rr\u00ebnj\u00ebsore shtes\u00eb, e cila lejon fshehjen e funksionimit t\u00eb sistemit t\u00eb inspektimit t\u00eb trafikut. Antivirus i nd\u00ebrhyn n\u00eb trafikun e sigurt dhe fut kodin e tij JavaScript n\u00eb disa faqe p\u00ebr t\u00eb realizuar funksionin Safe Search, dhe n\u00eb rast t\u00eb problemeve me certifikatat e lidhjes s\u00eb sigurt, z\u00ebvend\u00ebson faqen e gabimit me nj\u00eb t\u00eb tij\u00ebn. Duke qen\u00eb se faqja e re e gabimit nga shkarkohet n\u00eb emrin e serverit t\u00eb hapur, faqet e tjera t\u00eb k\u00ebtij serveri kan\u00eb qasje t\u00eb plot\u00eb n\u00eb p\u00ebrmbajtjen e futur nga Bitdefender.<\/p>\n

Kur hap nj\u00eb faqe n\u00ebn kontrollin e keqb\u00ebr\u00ebsit, kjo faqe mund t\u00eb d\u00ebrgoj\u00eb nj\u00eb k\u00ebrkes\u00eb XMLHttpRequest dhe t\u00eb simuloj\u00eb nj\u00eb problem me \u00e7ertifikat\u00ebn HTTPS n\u00eb p\u00ebrgjigje, duke \u00e7uar n\u00eb kthimin e nj\u00eb faqe me gabim, e modifikuar nga Bitdefender. Duke qen\u00eb se faqja me gabim hapet n\u00eb kontekstin e domenit t\u00eb sulmuesit, ai mund ta lexoj\u00eb p\u00ebrmbajtjen e faqeve t\u00eb modifikuara me parametrat e Bitdefender. N\u00eb faqen e modifikuar nga Bitdefender gjithashtu p\u00ebrfshihet nj\u00eb \u00e7el\u00ebs sesioni, q\u00eb lejon, p\u00ebrmes API-s\u00eb s\u00eb brendshme t\u00eb Bitdefender, t\u00eb fillohet nj\u00eb seanc\u00eb t\u00eb ve\u00e7ant\u00eb shfletuesi Safepay, duke treguar gjithashtu ndonj\u00eb flamur t\u00eb rast\u00ebsish\u00ebm t\u00eb komand\u00ebs, dhe t\u00eb arrihet ekzekutimi i ndonj\u00eb komande sistemi p\u00ebrmes flamurit \u2018--utility-cmd-prefix\u2019. Shembulli i eksploitit (param1 dhe param2 jan\u00eb vlerat e marra nga faqja me gabim):<\/p>\n

var request = new XMLHttpRequest();
\n request.open('POST', Math.random());
\n request.setRequestHeader('Content-type', 'application\/x-www-form-urlencoded');
\n request.setRequestHeader('BDNDSS_B67EA559F21B487F861FDA8A44F01C50', param1);
\n request.setRequestHeader('BDNDCA_BBACF84D61A04F9AA66019A14B035478', param2);
\n request.setRequestHeader('BDNDWB_5056E556833D49C1AF4085CB254FC242', 'obk.run');
\n request.setRequestHeader('BDNDOK_4E961A95B7B44CBCA1907D3D3643370D', location.href);
\n request.send('data:text\/html,nada --utility-cmd-prefix=\\cmd.exe \/k whoami & echo\\>');<\/p>\n

\"Nj\u00eb<\/a><\/noindex><\/center><\/p>\n

Rikujtojm\u00eb se studimi i realizuar n\u00eb vitin 2017 tregoi<\/a><\/noindex>, q\u00eb 24 nga 26 produktet antivirus t\u00eb testuara, q\u00eb inspektojn\u00eb trafikun HTTPS p\u00ebrmes z\u00ebvend\u00ebsimit t\u00eb certifikatave, e ul\u00ebn nivelin e p\u00ebrgjithsh\u00ebm t\u00eb siguris\u00eb s\u00eb lidhjes HTTPS.
\nGrupet aktuale t\u00eb \u00e7el\u00ebsve ishin ofruar vet\u00ebm n\u00eb 11 nga 26 produkte. 5 sisteme nuk realizonin verifikimin e certifikatave (Kaspersky Internet Security 16 Mac, NOD32 AV 9, CYBERsitter, Net Nanny 7 Win, Net Nanny 7 Mac). Produktet Kaspersky Internet Security dhe Total Security ishin t\u00eb ekspozuara ndaj sulmeve CRIME<\/a><\/noindex>, nd\u00ebrsa produktet AVG, Bitdefender dhe Bullguard ndaj sulmeve Logjam<\/a><\/noindex> dhe POODLE<\/a><\/noindex>. Produkti Dr.Web Antivirus 11 lejon rikthimin n\u00eb \u00e7el\u00ebsa t\u00eb padisht\u00eb eksporti (sulm FREAK<\/a><\/noindex>).<\/p>\n

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

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

\u0412\u043b\u0430\u0434\u0438\u043c\u0438\u0440 \u041f\u0430\u043b\u0430\u043d\u0442, \u0441\u043e\u0437\u0434\u0430\u0442\u0435\u043b\u044c Adblock Plus, \u0432\u044b\u044f\u0432\u0438\u043b \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2020-8102) \u0432 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u043d\u0430 \u0434\u0432\u0438\u0436\u043a\u0435 Chromium \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c web-\u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0435 Safepay, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u043c\u043e\u043c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432\u0435 \u0430\u043d\u0442\u0438\u0432\u0438\u0440\u0443\u0441\u043d\u043e\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u0430 Bitdefender Total Security 2020 \u0438 \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u043e\u043c \u043d\u0430 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 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