{"id":105334,"date":"2022-10-19T15:37:13","date_gmt":"2022-10-19T13:37:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-git-proyavlyayushhiesya-pri-klonirovanii-submodulej-i-ispolzovanii-git-shell"},"modified":"2022-10-19T15:37:13","modified_gmt":"2022-10-19T13:37:13","slug":"uyazvimosti-v-git-proyavlyayushhiesya-pri-klonirovanii-submodulej-i-ispolzovanii-git-shell","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/uyazvimosti-v-git-proyavlyayushhiesya-pri-klonirovanii-submodulej-i-ispolzovanii-git-shell","title":{"rendered":"Ranljive to\u010dke v Gitu, ki se pojavijo pri kloniranju podmodulov in uporabi git shell","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Objavljene so popravne razli\u010dice distribuiranega sistema za upravljanje izvornih besedil Git 2.38.1, 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3 in 2.37.4, v katerih so bile odpravljene dve ranljivosti, ki se pojavljata pri uporabi ukaza &#171;git clone&#187; v na\u010dinu &#171;&#8212;recurse-submodules&#187; z nepreverjenimi repozitoriji in pri uporabi interaktivnega na\u010dina dela &#171;git shell&#187;. Sproti lahko spremljate izdaje posodobitev paketov v distribucijah na straneh Debian, Ubuntu, RHEL, SUSE\/openSUSE, Fedora, Arch, FreeBSD.      <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-39253 &#8212; ranljivost omogo\u010da napadalcu, ki nadzira vsebino kloniranega repozitorija, dostop do zaupnih podatkov v uporabni\u0161kem sistemu, preko namestitve simboli\u010dnih povezav na pomembne datoteke v imeniku $GIT_DIR\/objects kloniranega repozitorija. Te\u017eava se pojavlja samo pri lokalnem kloniranju (v na\u010dinu &#171;&#8212;local&#187;, ki se uporablja, ko sta ciljna in izvorna podatka kloniranja v istem razdelku) ali pri kloniranju zlonamernega repozitorija, ki je zapakiran v obliki submodula v drugem repozitoriju (na primer, pri rekurzivnem vklju\u010devanju submodulov z ukazom &#171;git clone &#8212;recurse-submodules&#187;).\n<p>Ranljivost je povzro\u010dena s tem, da v na\u010dinu kloniranja &#171;&#8212;local&#187; git premakne vsebino $GIT_DIR\/objects v ciljni imenik (ustvari trde povezave ali kopije datotek), pri \u010demer razdere simboli\u010dne povezave (t.j. na koncu se v ciljni imenik skopirajo ne simboli\u010dne povezave, temve\u010d neposredno datoteke, na katere povezave ka\u017eejo). Za prepre\u010ditev izrazite ranljivosti v novih izdajah git je bilo kloniranje repozitorijev v na\u010dinu &#171;&#8212;local&#187;, ki vsebujejo simboli\u010dne povezave v imeniku $GIT_DIR\/objects, prepovedano. Poleg tega je bila privzeta vrednost parametra protocol.file.allow spremenjena na &#171;user&#187;, kar kloniranje z uporabo protokola file:\/\/ uvr\u0161\u010da med nevarne operacije.    <\/p>\n<li class=\"l\"> CVE-2022-39260 \u2014 celo\u0161tevilsko prelivanje pri funkciji split_cmdline(), ki se uporablja v ukazu \u00abgit shell\u00bb. Te\u017eava se lahko izkoristi za napad na uporabnike, ki uporabljajo \u00abgit shell\u00bb kot lupino pri prijavi in imajo omogo\u010den interaktivni na\u010din delovanja (ustvarjena je datoteka $HOME\/git-shell-commands). Izkori\u0161\u010danje ranljivosti lahko privede do izvajanja poljubne kode v sistemu z vnosom posebno oblikovanega ukaza, ve\u010djega od 2 GB.    <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57940\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u043c\u0438 \u0442\u0435\u043a\u0441\u0442\u0430\u043c\u0438 Git 2.38.1, 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3 \u0438 2.37.4, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0438\u0435\u0441\u044f \u043f\u0440\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u043a\u043e\u043c\u0430\u043d\u0434\u044b &#171;git clone&#187; \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 &#171;&#8212;recurse-submodules&#187; \u0441 \u043d\u0435\u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u043d\u044b\u043c\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f\u043c\u0438 \u0438 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0438\u043d\u0442\u0435\u0440\u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0440\u0435\u0436\u0438\u043c\u0430 \u0440\u0430\u0431\u043e\u0442\u044b &#171;git shell&#187;. \u041f\u0440\u043e\u0441\u043b\u0435\u0434\u0438\u0442\u044c \u0437\u0430 \u0432\u044b\u043f\u0443\u0441\u043a\u043e\u043c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u043f\u0430\u043a\u0435\u0442\u043e\u0432 \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430\u0445 \u043c\u043e\u0436\u043d\u043e \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445 Debian, [&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-105334","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b 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