In rsync, einem Dienstprogramm zur Datei-Synchronisierung und Backup, wurde eine Sicherheitsl\u00fccke (CVE-2022-29154) entdeckt, die es erm\u00f6glicht, beim Zugriff auf einen von einem Angreifer kontrollierten rsync-Server beliebige Dateien im Zielverzeichnis auf der Benutzerseite zu schreiben oder zu \u00fcberschreiben. Potenziell kann der Angriff auch durch ein Man-in-the-Middle (MITM)-Eingreifen im \u00dcbergangstraffic zwischen Client und legitimem Server erfolgen. Das Problem wurde in der Testversion Rsync 3.2.5pre1 behoben. <\/p>\n
Die Sicherheitsl\u00fccke erinnert an fr\u00fchere Probleme in SCP und wird ebenfalls dadurch verursacht, dass der Server entscheidet, wo die zu schreibende Datei abgelegt wird, w\u00e4hrend der Client nicht richtig \u00fcberpr\u00fcft, was der Server zur\u00fcckgibt im Vergleich zu dem, was angefordert wurde, was es erlaubt zu einem Server<\/a> Dateien zu schreiben, die urspr\u00fcnglich nicht vom Client angefordert wurden. Beispielsweise kann beim Kopieren von Dateien in das Home-Verzeichnis des Benutzers Server<\/a> anstatt der angeforderten Dateien Dateien mit den Namen .bash_aliases oder .ssh\/authorized_keys zur\u00fcckgegeben werden, die im Home-Verzeichnis des Benutzers gespeichert werden. \u0412 rsync, \u0443\u0442\u0438\u043b\u0438\u0442\u0435 \u0434\u043b\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0430\u0439\u043b\u043e\u0432 \u0438 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-29154), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0438 \u043a rsync-\u0441\u0435\u0440\u0432\u0435\u0440\u0443, \u043f\u043e\u0434\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u043e\u043c\u0443 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443, \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0438\u043b\u0438 \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0435 \u0444\u0430\u0439\u043b\u044b \u0432 \u0446\u0435\u043b\u0435\u0432\u043e\u043c \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0435 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f. \u041f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0430\u0442\u0430\u043a\u0430 \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0430 \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0432\u043c\u0435\u0448\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0430 (MITM) \u0432 \u0442\u0440\u0430\u043d\u0437\u0438\u0442\u043d\u044b\u0439 \u0442\u0440\u0430\u0444\u0438\u043a \u043c\u0435\u0436\u0434\u0443 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u043c \u0438 \u043b\u0435\u0433\u0438\u0442\u0438\u043c\u043d\u044b\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u043e\u043c. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0442\u0435\u0441\u0442\u043e\u0432\u043e\u043c \u0432\u044b\u043f\u0443\u0441\u043a\u0435 Rsync 3.2.5pre1. […]<\/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-104759","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47Sicherheitsl\u00fccke in Rsync, die das \u00dcberschreiben von Dateien auf der Client-Seite erm\u00f6glicht | ProHoster","description":"In rsync, einem Dienstprogramm zur Datei-Synchronisierung und Backup, wurde eine Sicherheitsl\u00fccke (CVE-2022-29154) entdeckt, die es erm\u00f6glicht, beim Zugriff auf einen von einem Angreifer kontrollierten rsync-Server zu schreiben oder zu 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Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"