漏洞信息
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Vulnerability Title
AsyncSSH: SCP Path Traversal to Arbitrary File Write
Vulnerability Description
AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.1, a malicious SSH server can write arbitrary files on the asyncssh SCP client's filesystem by sending filenames containing ../ traversal sequences because _parse_cd_args in scp.py returns server-provided names verbatim and _recv_files joins them to the destination path without enforcing the target directory boundary. This issue is fixed in version 2.23.1.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Vulnerability Title
Ron Frederick AsyncSSH 路径遍历漏洞
Vulnerability Description
Ron Frederick AsyncSSH是Ron Frederick个人开发者的一款异步SSH协议库。 Ron Frederick AsyncSSH 2.23.1之前版本存在路径遍历漏洞,该漏洞源于SCP客户端未对服务器提供的文件名进行路径边界检查,可能允许恶意SSH服务器发送包含../遍历序列的文件名,从而在客户端文件系统上写入任意文件。
CVSS Information
N/A
Vulnerability Type
N/A