إرسال #83: uftpd 2.6-2.10 Directory Traversal (Chroot Escape)المعلومات

عنوانuftpd 2.6-2.10 Directory Traversal (Chroot Escape)
الوصف# Directory Traversal (Chroot Escape) ## Description It is possible for an unauthenticated user to perform a directory traversal attack using multiple different FTP commands and read and write to arbitrary locations on the filesystem due to the lack of a well-written chroot jail in `compose_abspath`. ![dir trav](https://aaronesau.com/files/blog/uftpd-handle_MKD.png) ## Reproduction Steps To reproduce this vulnerability, connect via `netcat <ip> <port>` and write to the FTP server socket the following: ``` MKD ../../../../../tmp/itworked ``` Then, `ls /tmp/itworked` from terminal to verify that the folder was created. ## Mitigation Properly sanitize paths.
المصدر⚠️ https://aaronesau.com/blog/posts/6
المستخدم
 arinerron (UID 4337)
ارسال31/08/2019 08:36 PM (7 سنوات منذ)
الاعتدال03/09/2019 07:09 AM (2 days later)
الحالةتمت الموافقة
إدخال VulDB141191 [uftpd 2.6-2.10 اجتياز الدليل]
النقاط20

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