漏洞信息
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Vulnerability Title
Gotenberg: Path traversal in zip entry name via Windows-style separators in upload filename
Vulnerability Description
Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, filename handling in pkg/modules/api/context.go uses filepath.Base on Linux, which does not treat backslashes as path separators, so a multipart filename containing Windows-style parent directory components survives sanitization. The original filename flows through ctx.diskToOriginal and the multi-output PDF routes into archives.FilesFromDisk and archives.Zip.Archive as the generated zip entry name. A remote attacker can submit a name such as ........\Windows\System32\evil.pdf through an upload or an upstream downloadFrom Content-Disposition header, and a Windows archive extractor can write the resulting file outside the intended extraction directory. The affected paths include /forms/pdfengines/split and other multi-output PDF, LibreOffice, and conversion routes, and exploitation can cause arbitrary file writes on a downstream Windows system when a user or process extracts the returned archive. This issue is fixed in version 8.33.0.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Vulnerability Title
Gotenberg 路径遍历漏洞
Vulnerability Description
Gotenberg是Gotenberg团队开源的一个文档转换应用服务器。 Gotenberg 8.33.0之前版本存在路径遍历漏洞,该漏洞源于pkg/modules/api/context.go文件中的文件名处理在Linux环境下使用filepath.Base,未将反斜杠视为路径分隔符,导致包含Windows样式父目录组件的文件名绕过清理,远程攻击者可通过上传或Content-Disposition标头提交恶意文件名,当解压返回的压缩包时可能导致任意文件写入。
CVSS Information
N/A
Vulnerability Type
N/A