漏洞信息
尽管我们使用了先进的大模型技术,但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性,但请您根据实际情况进行核实和判断。
Vulnerability Title
SSHFS Symlink Escape: Rogue SFTP Server → Local File Read/Write
Vulnerability Description
SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local filesystem. The documented transform_symlinks mitigation does not contain relative targets because transform_symlink() returns early at sshfs.c:2181, while sshfs_readlink() at sshfs.c:2234 to sshfs.c:2236 otherwise copies the server-supplied link target to the kernel. A victim or victim-side tool that follows such a link through ordinary operations such as cp, rsync, backup tooling, or an editor can disclose readable local files back to the server or write server-controlled content to writable local files, potentially including startup or scheduled-task files. This issue is fixed in version 3.7.6.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Vulnerability Title
libfuse sshfs 后置链接漏洞
Vulnerability Description
libfuse sshfs是libfuse组织的一款基于SSH协议的文件系统挂载工具。 libfuse sshfs 3.7.6之前版本存在后置链接漏洞,该漏洞源于符号链接处理不当,恶意SFTP服务器可返回绝对符号链接目标或包含父目录组件的相对目标,导致用户通过普通操作跟踪此类链接时,可能将本地可读文件泄露给服务器或写入服务器控制的内容到可写本地文件。
CVSS Information
N/A
Vulnerability Type
N/A