{"id":84602,"date":"2020-06-09T13:42:14","date_gmt":"2020-06-09T11:42:14","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/novaya-versiya-pochtovogo-servera-exim-4-94"},"modified":"2020-06-09T13:42:14","modified_gmt":"2020-06-09T11:42:14","slug":"novaya-versiya-pochtovogo-servera-exim-4-94","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/novaya-versiya-pochtovogo-servera-exim-4-94","title":{"rendered":"Uus Exim 4.94 meiliserveri versioon","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>P\u00e4rast 6 kuu arendust\u00f6\u00f6d <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.exim.org\/lurker\/message\/20200601.152400.f7bce8f6.en.html\">leidis aset<\/a><\/noindex> e-posti serveri v\u00e4ljalaskmine <noindex><a rel=\"nofollow\" href=\"http:\/\/exim.org\/\">Exim 4.94<\/a><\/noindex>, kuhu on kantud kokku kogunenud parandused ja lisatud uusi funktsioone. Vastavalt mai <noindex><a rel=\"nofollow\" href=\"http:\/\/www.securityspace.com\/s_survey\/data\/man.202005\/mxsurvey.html\">automatiseeritud k\u00fcsitlusest<\/a><\/noindex> Umbes miljonit meiliserverit, Eximi osakaal on 57,59% (aasta tagasi 53,03%), Postfixi kasutatakse 34,70% (34,51%) meiliserveritest, Sendmail - 3,75% (4,05%), Microsoft Exchange - 0,42% (0,57%). <\/p>\n<p>Uue versiooni muudatused v\u00f5ivad p\u00f5hjustada tagasipoole \u00fchilduvuse katkemist. Eelk\u00f5ige on m\u00f5ned transpordiviisid l\u00f5petanud t\u00f6\u00f6tamise mitte-puhastatud andmetega (tainted, saatjalt saadud andmetel p\u00f5hinevad v\u00e4\u00e4rtused) kohaletoimetamise asukoha m\u00e4\u00e4ramisel. N\u00e4iteks v\u00f5ivad probleemid tekkida muutuja $local_part kasutamisel seadistuses \u00abcheck_local_user\u00bb kirjade suunamisel. $local_part asemel tuleks kasutada uut puhastatud muutujat \u00ab$local_part_data\u00bb. Samuti on n\u00fc\u00fcd operaatorite option headers_remove korral lubatud kasutada maske, mida m\u00e4\u00e4ratakse t\u00e4rniga \u00ab*\u00bb, mis v\u00f5ib p\u00f5hjustada konfiguratsioonide eba\u00f5nnestumist, kus eemaldati pealkirjad, mis l\u00f5pevad t\u00e4rniga (konkreetsete pealkirjade eemaldamise asemel toimub eemaldamine maski alusel).<\/p>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/git.exim.org\/exim.git\/blob_plain\/HEAD:\/doc\/doc-txt\/ChangeLog\">Peamised<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/git.exim.org\/exim.git\/blob_plain\/HEAD:\/doc\/doc-txt\/NewStuff\">muudatused<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> Lisatud eksperimentaalne sisseehitatud tugi SRS (Saatja Uuendamise Skeem) mehhanismile, mis v\u00f5imaldab saatja aadressi \u00fcmber kirjutada edasi saatmisel ilma SPF kontrollide rikkumiseta (<noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Sender_Rewriting_Scheme\">Saatja Poliitika Raamistik<\/a><\/noindex>) ja tagab saatjate andmete s\u00e4ilimise serveri poolt s\u00f5numite suunamisel edasise saatmise korral. Meetodi olemus seisneb selles, et \u00fchenduse loomisel edastatakse algsest saatjast teave identiteedi kohta, n\u00e4iteks kui alice@example.org asendatakse alice@example.com, siis antakse teada \u00abSRS0=HHH=TT=example.org=alice@example.com\u00bb. SRS on oluline n\u00e4iteks postitusloendite haldamisel, kus algne s\u00f5num suunatakse teistele adressaatidele.\n<li class=\"l\"> OpenSSL-i kasutamisel on lisatud kanali fikseerimise tugi <noindex><a rel=\"nofollow\" href=\"https:\/\/www.exim.org\/exim-html-current\/doc\/html\/spec_html\/ch-smtp_authentication.html\">autentifikaatoritele<\/a><\/noindex> (varem toetati ainult GnuTLS-i jaoks).\n<li class=\"l\"> Lisatud s\u00fcndmus \u00abmsg:defer\u00bb.\n<li class=\"l\"> Rakendatud on kliendi poole autentifikaatori gsasl tugi, mis on testitud ainult avatud paroolide (plaintext) t\u00f6\u00f6tlejaga. SCRAM-SHA-256 ja SCRAM-SHA-256-PLUS meetodite toimimine on v\u00f5imalik ainult l\u00e4bi gsasl-i. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.exim.org\/exim-html-current\/doc\/html\/spec_html\/ch-the_gsasl_authenticator.html\">gsasl<\/a><\/noindex>.\n<li class=\"l\">  Serveri poolel on rakendatud gsasl autentikaatori tugi kr\u00fcpteeritud paroolide jaoks, mis on alternatiiv varasemale plaintext re\u017eiimile.\n<li class=\"l\"> Nimekirjades m\u00e4\u00e4ratlemisel v\u00f5ivad n\u00fc\u00fcd olevikud olla m\u00e4rgitud eesliitega \u00abhide\u00bb, et v\u00e4ltida sisu kuvamist k\u00e4su \u00ab-bP\u00bb t\u00e4itmisel.\n<li class=\"l\"> IMAP-serveri Dovecot autentikaatorisse on lisatud eksperimentealne tugi interneti socket'itele (varem toetati ainult unix-domain socket'e).\n<li class=\"l\"> ACL v\u00e4ljend \u00abqueue_only\u00bb v\u00f5ib n\u00fc\u00fcd olla m\u00e4\u00e4ratud kui \u00abqueue\u00bb ja toetab varianti \u00abfirst_pass_route\u00bb, mis sarnaneb k\u00e4surea valikule \u00ab-odqs\u00bb.\n<li class=\"l\"> Lisatud uued muutujad $queue_size ja $local_part_{pre,suf}fix_v.\n<li class=\"l\"> Peamisse konfiguratsiooniblokki on lisatud variant \u00absqlite_dbfile\u00bb otsingu stringi prefiksi m\u00e4\u00e4ramiseks. See muudatus katkestab tagasipoole \u00fchilduvuse - vana meetod prefiksi m\u00e4\u00e4ramiseks ei t\u00f6\u00f6ta enam mitte-puhastatud (tainted) muutujaid lookup-p\u00e4ringutes m\u00e4\u00e4rates. Uus meetod (\u00absqlite_dbfile\u00bb) v\u00f5imaldab hoida faili nime eraldi.\n<li class=\"l\"> dsearch lookup-blokki on lisatud valikud t\u00e4ispika tee ja failit\u00fc\u00fcpide filtreerimise tagastamiseks vastendamisel.\n<li class=\"l\"> pgsql ja mysql lookup-blokki on lisatud valikud serveri nime m\u00e4\u00e4ramiseks eraldi otsingureast.\n<li class=\"l\"> \u00dche v\u00f5tmega valimisi sooritavatele lookup-blokkidele on lisatud valik tagastada puhastatud (de-tainted) versioon v\u00f5tme, juhul kui vasteid leidub, asemel otsitavate andmete.\n<li class=\"l\"> K\u00f5ikide eduka valimise list-match puhul on tagatud muutujate $domain_data ja $localpart_data seadmine (varasemalt sisestati valimis osalenud loendi elemendid). Lisaks m\u00e4\u00e4ratakse n\u00fc\u00fcd vastendamisel kasutatavad loendi elemendid muutujatele $0, $1 jne.\n<li class=\"l\"> Lisatud avamise operaator \u00ab${listquote {} {}}\u00bb.\n<li class=\"l\"> Avamise operaatorisse ${readsocket {}{}{}} on lisatud valik tulemuste vahem\u00e4lu tagamiseks.\n<li class=\"l\"> Lisatud seade dkim_verify_min_keysizes minimaalsete lubatud avalike v\u00f5tmete suuruste loetlemiseks.\n<li class=\"l\"> Tagatud on parameetrite &#171;bounce_message_file&#187; ja &#171;warn_message_file&#187; avalikustamine enne nende esmakordset kasutamist.\n<li class=\"l\"> Lisatud on valik &#171;spf_smtp_comment_template&#187; muutuja v\u00e4\u00e4rtuse &#171;$spf_smtp_comment&#187; seadistamiseks.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53116\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Exim 4.94, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043d\u0435\u0441\u0435\u043d\u044b \u043d\u0430\u043a\u043e\u043f\u0438\u0432\u0448\u0438\u0435\u0441\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u044b \u043d\u043e\u0432\u044b\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438. \u0412 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043c\u0430\u0439\u0441\u043a\u0438\u043c \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043e\u043f\u0440\u043e\u0441\u043e\u043c \u043e\u043a\u043e\u043b\u043e \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u0430 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, \u0434\u043e\u043b\u044f Exim \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 57.59% (\u0433\u043e\u0434 \u043d\u0430\u0437\u0430\u0434 53.03%), Postfix \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043d\u0430 34.70% (34.51%) \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u0432, Sendmail &#8212; 3.75% (4.05%), Microsoft Exchange &#8212; 0.42% (0.57%). \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u043d\u043e\u0432\u043e\u043c [&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-84602","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 6 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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