漏洞信息
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Vulnerability Title
MarkUs: YAML alias (‘billion laughs’) DoS in config upload
Vulnerability Description
MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs allows course instructors to upload YAML files to create/update various entities (e.g., assignment settings). These YAML files are parsed with aliases enabled. This issue has been patched in version 2.9.4.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
DTD中递归实体索引的不恰当限制(XML实体扩展)
Vulnerability Title
MarkUs 安全漏洞
Vulnerability Description
MarkUs是MarkUs开源的一个 Ruby on Rails 和 React web 应用程序,用于提交和评分学生作业。 MarkUs 2.9.4之前版本存在安全漏洞,该漏洞源于允许课程讲师上传YAML文件创建或更新实体,且解析YAML文件时启用了别名。
CVSS Information
N/A
Vulnerability Type
N/A