{"id":99397,"date":"2021-03-09T22:22:47","date_gmt":"2021-03-09T20:22:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda"},"modified":"2021-03-09T22:22:47","modified_gmt":"2021-03-09T20:22:47","slug":"obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda","title":{"rendered":"Git-Update zur Behebung einer Sicherheitsanf\u00e4lligkeit, die die remote Ausf\u00fchrung von Code erm\u00f6glicht","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Es wurden Korrekturversionen des verteilten Versionskontrollsystems Git 2.30.2, 2.17.6, 2.18.5, 2.19.6, 2.20.5, 2.21.4, 2.22.5, 2.23.4, 2.24.4, 2.25.5, 2.26.3, 2.27.1, 2.28.1 und 2.29.3 ver\u00f6ffentlicht, in denen eine Schwachstelle (CVE-2021-21300) behoben wurde, die es erm\u00f6glicht, beim Klonen eines Repositories eines Angreifers \u00fcber den Befehl \u201egit clone\u201c Remote-Code auszuf\u00fchren. Alle Git-Versionen ab 2.15 sind von dieser Schwachstelle betroffen. <\/p>\n

Das Problem tritt bei der Verwendung von verz\u00f6gerten Checkout-Operationen auf, die in einigen Bereinigungfiltern verwendet werden, wie zum Beispiel in Git LFS. Die Ausnutzung der Sicherheitsanf\u00e4lligkeit ist nur in Dateisystemen m\u00f6glich, die keine Gro\u00df- und Kleinschreibung unterscheiden, aber symbolische Links unterst\u00fctzen, wie NTFS, HFS+ und APFS (d.h. auf Windows- und macOS-Plattformen). <\/p>\n

Als Schutzma\u00dfnahme kann die Verarbeitung von symbolischen Links in Git deaktiviert werden, indem der Befehl \u201egit config --global core.symlinks false\u201c ausgef\u00fchrt wird, oder die Unterst\u00fctzung f\u00fcr Filterprozesse kann mit dem Befehl \u201egit config --show-scope --get-regexp 'filter..*\\.process'\u201c deaktiviert werden. Au\u00dferdem wird empfohlen, das Klonen von nicht \u00fcberpr\u00fcften Repositories zu vermeiden.
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 2.30.2, 2.17.6, 2.18.5, 2.19.6, 2.20.5, 2.21.4, 2.22.5, 2.23.4, 2.24.4, 2.25.5, 2.26.3, 2.27.1, 2.28.1 \u0438 2.29.3, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-21300), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043a\u043b\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043a\u043e\u043c\u0430\u043d\u0434\u044b «git clone». \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b \u0432\u0441\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 Git, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 2.15. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0438 […]<\/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-99397","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 Aktualisierung von Git zur Behebung einer Schwachstelle, die remote Codeausf\u00fchrung erm\u00f6glicht | ProHoster","description":"Es wurden Korrekturversionen des verteilten Systems zur Verwaltung von Quelltexten Git 2.30.2, 2.17.6, 2.18.5, 2.19.6, 2.20.5, 2.21.4, 2.22.5, 2.23.4, 2.24.4, 2.25.5, 2.26.3, 2.27.1, 2.28.1 und 2.29.3 ver\u00f6ffentlicht, die eine Schwachstelle (CVE-2021-21300) beheben, die es erm\u00f6glicht, bei der Klonung eines Repositories eines Angreifers mit dem Befehl \"git clone\" remote Code auszuf\u00fchren. Alle Git-Versionen ab 2.15 sind von der Schwachstelle betroffen. Das Problem tritt auf, wenn","canonical_url":"https:\/\/prohoster.info\/de\/blog\/novosti-interneta\/obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"de_DE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 Git \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0435\u0439 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\u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043a\u043b\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043a\u043e\u043c\u0430\u043d\u0434\u044b "git clone". \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b \u0432\u0441\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 Git, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 2.15. 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