漏洞信息
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Vulnerability Title
File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-following RemoveAll in upload failure-cleanup
Vulnerability Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.16, a scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope (other tenants' data, and the application's own database) via the upload failure-cleanup path. ScopedFs.RemoveAll is the one dereferencing operation that skips the symlink guard every other method enforces. The direct-upload handler runs RemoveAll on the user-controlled path during failed-upload cleanup, gated only by Perm.Create. If an escaping directory symlink already exists inside the user's scope, an authenticated create-only user can delete an out-of-scope target, bypassing both the ScopedFs boundary and the Perm.Delete gate. This vulnerability is fixed in 2.63.16.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Vulnerability Title
FileBrowser 路径遍历漏洞
Vulnerability Description
FileBrowser是filebrowser团队开源的一个文件管理界面,在指定的目录,它可以用来上传、删除、预览和编辑文件。 FileBrowser 2.63.16之前版本存在安全漏洞,该漏洞源于上传失败清理路径中的ScopedFs.RemoveAll绕过符号链接防护,可能导致经过身份验证的仅拥有Create权限的用户删除作用域外的任意文件。
CVSS Information
N/A
Vulnerability Type
N/A