{"id":36147,"date":"2019-10-31T22:09:52","date_gmt":"2019-10-31T19:09:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vypusk-proksi-servera-squid-4-8-s-ustraneniem-kriticheskoj-uyazvimosti\/"},"modified":"2019-10-31T22:09:52","modified_gmt":"2019-10-31T19:09:52","slug":"vypusk-proksi-servera-squid-4-8-s-ustraneniem-kriticheskoj-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-proksi-servera-squid-4-8-s-ustraneniem-kriticheskoj-uyazvimosti","title":{"rendered":"Sortie du proxy serveur Squid 4.8 avec correction d'une vuln\u00e9rabilit\u00e9 critique","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Publi\u00e9<\/a><\/noindex> version corrective du serveur proxy Squid 4.8<\/a><\/noindex>, dans lequel 5 vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 corrig\u00e9es. L'une des vuln\u00e9rabilit\u00e9s (CVE-2019-12527) d'installer<\/a><\/noindex> peut potentiellement permettre l'ex\u00e9cution de code avec les droits du processus serveur. <\/p>\n

Le probl\u00e8me est caus\u00e9 par une erreur dans le gestionnaire d'authentification HTTP Basic, permettant de provoquer un d\u00e9bordement de tampon lors de la transmission de donn\u00e9es d'identification sp\u00e9cialement con\u00e7ues en acc\u00e9dant \u00e0 Squid Cache.
\n Manager ou passerelle FTP int\u00e9gr\u00e9e. La vuln\u00e9rabilit\u00e9 se manifeste \u00e0 partir de la version Squid 4.0.23. Pour contourner le blocage de la vuln\u00e9rabilit\u00e9, vous pouvez recompiler squid avec l'option «—disable-auth-basic» ou interdire dans la configuration l'acc\u00e8s aux services utilisant l'authentification HTTP :<\/p>\n

acl FTP proto FTP
\n http_access deny FTP
\n http_access deny manager<\/p>\n

Les trois autres vuln\u00e9rabilit\u00e9s peuvent entra\u00eener un d\u00e9ni de service lors de manipulations avec cachemgr.cgi, authentification HTTP Digest ou HTTP Basic. La derni\u00e8re vuln\u00e9rabilit\u00e9 permet d'organiser un script intersite via cachemgr.cgi.<\/p>\n

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

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

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\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0435 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 HTTP Basic \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u043d\u0438\u0446\u0438\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u0443\u0447\u0451\u0442\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0438 \u043a Squid Cache Manager 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