{"id":86563,"date":"2020-06-27T01:42:01","date_gmt":"2020-06-26T23:42:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-curl-7-71-0-s-ustraneniem-dvuh-uyazvimostej"},"modified":"2020-06-27T01:42:01","modified_gmt":"2020-06-26T23:42:01","slug":"vypusk-curl-7-71-0-s-ustraneniem-dvuh-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/vypusk-curl-7-71-0-s-ustraneniem-dvuh-uyazvimostej","title":{"rendered":"curl 7.71.0 release with the fix of two vulnerabilities","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/curl.haxx.se\/mail\/archive-2020-06\/0055.html\">Available<\/a><\/noindex> the new version of the utility for sending and receiving data over the network \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/curl.haxx.se\/\">curl 7.71.0<\/a><\/noindex>, providing the ability to flexibly formulate requests with parameters such as cookie, user_agent, referer, and any other headers. cURL supports HTTP, HTTPS, HTTP\/2.0, HTTP\/3, SMTP, IMAP, POP3, Telnet, FTP, LDAP, RTSP, RTMP, and other network protocols. At the same time, an update was released for the concurrently developed libcurl library, which provides an API to utilize all cURL functions in programs written in languages such as C, Perl, PHP, Python. <\/p>\n<p>the latest release adds the option \u00ab\u2014retry-all-errors\u00bb for retrying operations when any errors occur and fixes two vulnerabilities:<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2020\/06\/24\/2\">The vulnerability<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/curl.haxx.se\/docs\/CVE-2020-8177.html)\">CVE-2020-8177<\/a><\/noindex> allows overwriting a local file in the system when accessing a server controlled by an attacker. The issue arises only when using the options \u00ab-J\u00bb (\u00ab\u2014remote-header-name\u00bb) and \u00ab-i\u00bb (\u00ab\u2014head\u00bb) simultaneously. The \u00ab-J\u00bb option allows saving the file with the name specified in the header<br \/>\n\u00abContent-Disposition\u00bb. If a file with that name already exists, the curl program normally refuses to overwrite it, but when the \u00ab-i\u00bb option is present, the verification logic is compromised, and the file is overwritten (verification occurs during the response body retrieval stage, but with the \u00ab-i\u00bb option, HTTP headers are output first, and they are saved before the response body processing begins). Only HTTP headers are written to the file, but the server may return arbitrary data instead of headers, and that data will be saved.<\/p>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2020\/06\/24\/1\">The vulnerability<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/curl.haxx.se\/docs\/CVE-2020-8169.html\">CVE-2020-8169<\/a><\/noindex>  may lead to a DNS server leak of some website access passwords (Basic, Digest, NTLM, etc.). When using the symbol '@' in a password, which is also used as a password delimiter in a URL, when HTTP redirection occurs, curl will send the part of the password after the '@' along with the domain to determine the name. For instance, when specifying the password 'passw@rd123' and the username 'dan', curl will generate the URL 'https:\/\/dan:passw@rd123@example.com\/path' instead of 'https:\/\/dan:passwrd123@example.com\/path' and will send a request to resolve the host 'rd123@example.com' instead of 'example.com'.\n<p>The issue arises when enabling support for relative HTTP redirects (disabled via CURLOPT_FOLLOWLOCATION). In the case of traditional DNS usage, a DNS provider and an attacker capable of intercepting transit network traffic can obtain part of the password information (even if the initial request was made over HTTPS, as DNS traffic is not encrypted). When using DNS-over-HTTPS (DoH), the leak is limited to the DoH operator.<\/p>\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Source: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53239\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u043e \u0441\u0435\u0442\u0438 &#8212; curl 7.71.0, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0439 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0433\u0438\u0431\u043a\u043e\u0433\u043e \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u0441 \u0437\u0430\u0434\u0430\u043d\u0438\u0435\u043c \u0442\u0430\u043a\u0438\u0445 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432, \u043a\u0430\u043a cookie, user_agent, referer \u0438 \u043b\u044e\u0431\u044b\u0445 \u0434\u0440\u0443\u0433\u0438\u0445 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u043e\u0432. cURL \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 HTTP, HTTPS, HTTP\/2.0, HTTP\/3, SMTP, IMAP, POP3, Telnet, FTP, LDAP, RTSP, RTMP \u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0441\u0435\u0442\u0435\u0432\u044b\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b. \u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0432\u044b\u0448\u043b\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 [&hellip;]<\/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-86563","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u043e \u0441\u0435\u0442\u0438 -\" 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