漏洞信息
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Vulnerability Title
RansomLook Analysis PDF Generation Allows Server-Side Request Forgery and Arbitrary Local File Access
Vulnerability Description
RansomLook contains insufficient resource validation in the analysis PDF generation functionality. Analysis documents are converted from Markdown to HTML and passed to WeasyPrint for PDF rendering. Prior to the fix, WeasyPrint used its default URL fetcher, allowing resource references contained in an analysis to be resolved without restrictions.
An authenticated attacker able to create or modify an analysis could embed crafted resource references using schemes such as file:// or http://. When the analysis was subsequently rendered as PDF, WeasyPrint would process these references with the privileges and network access of the RansomLook server.
A malicious file:// reference could cause the renderer to access arbitrary files readable by the RansomLook process, potentially exposing sensitive configuration, credentials, or other local data through rendered resources. Network URLs could cause the server to initiate requests to localhost, internal network services, or external systems, resulting in server-side request forgery (SSRF) and potentially bypassing network-level access restrictions.
The patch introduces a dedicated WeasyPrint URL fetcher that permits only data: resources, the RansomLook report logo, and files contained within the analysis asset directory. Network resources and filesystem paths outside these explicitly permitted locations are rejected.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Vulnerability Type
服务端请求伪造(SSRF)
Vulnerability Title
RansomLook 服务端请求伪造漏洞
Vulnerability Description
RansomLook是RansomLook团队的一款勒索软件监测与分析平台。 RansomLook 2.0.0及之前版本存在服务端请求伪造漏洞,该漏洞源于分析PDF生成功能资源验证不足,可能导致经过身份验证的攻击者嵌入特制的file://或http://资源引用,利用WeasyPrint默认URL获取器访问任意文件或发起服务端请求伪造攻击。
CVSS Information
N/A
Vulnerability Type
N/A