漏洞信息
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Vulnerability Title
Dompdf: Local file read due to improper file path validation in SVG images encoded as data-URI
Vulnerability Description
Dompdf is an HTML to PDF converter for PHP. In versions 3.15 and prior, aAn attacker who controls the HTML input can bypass this restriction by embedding a target file path inside an SVG image delivered through a data: URI, because dompdf processes the SVG twice and the second pass does not enforce the same protections as the first. When rendering, dompdf hands the SVG to the separate php-svg-lib library with external references forced on, and that library has no knowledge of the chroot directory, blocks only the phar:// scheme, and ultimately reads the referenced file with no path or protocol validation. This lets an external, unauthenticated attacker read arbitrary image files from the server's file system in the default configuration. This issue has been fixed in version 3.16.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
输入验证不恰当
Vulnerability Title
dompdf 输入验证错误漏洞
Vulnerability Description
dompdf是dompdf团队开源的一个 HTML 到 PDF 的转换器。 dompdf 3.1.6之前版本存在输入验证错误漏洞,该漏洞源于对SVG图像中文件路径验证不足,导致未经身份验证的攻击者可以读取服务器文件系统中的任意图像文件。
CVSS Information
N/A
Vulnerability Type
N/A