| タイトル | uftpd 2.6-2.10 Directory Traversal (Chroot Escape) |
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| 説明 | # 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`.
## 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. |
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| ソース | ⚠️ https://aaronesau.com/blog/posts/6 |
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| ユーザー | arinerron (UID 4337) |
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| 送信 | 2019年08月31日 20:36 (7 年 ago) |
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| モデレーション | 2019年09月03日 07:09 (2 days later) |
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| ステータス | 承諾済み |
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| VulDBエントリ | 141191 [uftpd 2.6-2.10 ディレクトリトラバーサル] |
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| ポイント | 20 |
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