{"id":53107,"date":"2019-11-24T00:00:00","date_gmt":"2019-11-23T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/37-uyazvimostej-v-razlichnyh-realizatsiyah-vnc"},"modified":"2020-02-18T14:00:58","modified_gmt":"2020-02-18T11:00:58","slug":"37-uyazvimostej-v-razlichnyh-realizatsiyah-vnc","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/37-uyazvimostej-v-razlichnyh-realizatsiyah-vnc","title":{"rendered":"37 vulnerabilitete n\u00eb implementime t\u00eb ndryshme VNC","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pavel Cheremushkin nga Laboratori i Kaspersky analizoi<\/a><\/noindex> implementime t\u00eb ndryshme t\u00eb sistemit t\u00eb qasjes s\u00eb larg\u00ebt VNC (Virtual Network Computing) dhe zbuloi 37 dob\u00ebsi, t\u00eb shkaktuara nga problemet n\u00eb pun\u00ebn me memory. Dob\u00ebsit\u00eb e zbuluara n\u00eb implementimet e server\u00ebve VNC mund t\u00eb shfryt\u00ebzohen vet\u00ebm nga nj\u00eb p\u00ebrdorues i autentikuar, nd\u00ebrsa sulmet ndaj dob\u00ebsive n\u00eb kodin e klientit jan\u00eb t\u00eb mundshme kur p\u00ebrdoruesi lidhet me nj\u00eb server t\u00eb kontrolluar nga nj\u00eb sulmues.<\/p>\n

Numri m\u00eb i madh i dob\u00ebsive u zbulua n\u00eb paket\u00ebn UltraVNC<\/a><\/noindex>, e cila \u00ebsht\u00eb e disponueshme vet\u00ebm p\u00ebr platform\u00ebn Windows. N\u00eb total, n\u00eb UltraVNC u zbuluan 22 dob\u00ebsi. 13 dob\u00ebsi mund t\u00eb \u00e7ojn\u00eb potencialisht n\u00eb ekzekutimin e kodit n\u00eb sistem, 5 n\u00eb rrjedhjen e p\u00ebrmbajtjes s\u00eb hap\u00ebsirave t\u00eb memories dhe 4 n\u00eb munges\u00ebn e sh\u00ebrbimit.
\nDob\u00ebsit\u00eb jan\u00eb rregulluar n\u00eb versionin 1.2.3.0<\/a><\/noindex>.<\/p>\n

N\u00eb bibliotek\u00ebn e hapur LibVNC<\/a><\/noindex> (LibVNCServer dhe LibVNCClient), e cila p\u00ebrdoret<\/a><\/noindex> n\u00eb VirtualBox, u zbuluan 10 dob\u00ebsi.
\n5 dob\u00ebsi (CVE-2018-20020<\/a><\/noindex>, CVE-2018-20019<\/a><\/noindex>, CVE-2018-15127<\/a><\/noindex>, CVE-2018-15126<\/a><\/noindex>, CVE-2018-6307<\/a><\/noindex>) jan\u00eb shkaktuar nga tejmbushja e buffers dhe mund t\u00eb \u00e7ojn\u00eb potencialisht n\u00eb ekzekutimin e kodit. 3 dob\u00ebsi mund t\u00eb \u00e7ojn\u00eb n\u00eb rrjedhjen e informacionit, 2 n\u00eb nj\u00eb munges\u00eb sh\u00ebrbimi.
\nT\u00eb gjitha problemet tashm\u00eb jan\u00eb rregulluar nga zhvilluesit, por ndryshimet p\u00ebr momentin reflektohen<\/a><\/noindex> vet\u00ebm n\u00eb deg\u00ebn master.<\/p>\n

N\u00eb TightVNC<\/a><\/noindex> (u testua nj\u00eb deg\u00eb e vjet\u00ebr nd\u00ebr-platform\u00eb, 1.3<\/a><\/noindex>, pasi versioni aktual 2.x l\u00ebshohet vet\u00ebm p\u00ebr Windows), u zbuluan 4 dob\u00ebsi. Tre probleme (CVE-2019-15679<\/a><\/noindex>, CVE-2019-15678<\/a><\/noindex>, CVE-2019-8287<\/a><\/noindex>) shkaktohen nga tejmbushja e buffers n\u00eb funksionet InitialiseRFBConnection, rfbServerCutText dhe HandleCoRREBBP dhe potencialisht mund t\u00eb \u00e7ojn\u00eb n\u00eb ekzekutimin e kodit. Nj\u00eb problem (CVE-2019-15680<\/a><\/noindex>) \u00e7on n\u00eb munges\u00ebn e sh\u00ebrbimit. Pavar\u00ebsisht se zhvilluesit e TightVNC u njoftuan<\/a><\/noindex> p\u00ebr problemet ver\u00ebn q\u00eb kaloi, dob\u00ebsit\u00eb ende mbeten t\u00eb pa rregulluara.<\/p>\n

N\u00eb paket\u00ebn nd\u00ebr-platform\u00eb TurboVNC<\/a><\/noindex> (fork i TightVNC 1.3, q\u00eb p\u00ebrdor bibliotek\u00ebn libjpeg-turbo), u gjet vet\u00ebm nj\u00eb dob\u00ebsi (CVE-2019-15683<\/a><\/noindex>), por ajo \u00ebsht\u00eb e rrezikshme dhe me nj\u00eb akses t\u00eb autentikuar n\u00eb server, jep mund\u00ebsin\u00eb p\u00ebr t\u00eb organizuar ekzekutimin e kodit tuaj, pasi n\u00eb tejmbushjen e buffers ka mund\u00ebsin\u00eb p\u00ebr t\u00eb kontrolluar adres\u00ebn e rikthimit. Problemi \u00ebsht\u00eb rregulluar m\u00eb 23 gusht<\/a><\/noindex> dhe nuk shfaqet n\u00eb versionin aktual 2.2.3<\/a><\/noindex>.<\/p>\n

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

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

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