中危 mermaid_project mermaid 输出中的特殊元素转义处理不恰当（注入）
CVE编号
CVE-2022-31108利用情况
暂无补丁情况
官方补丁披露时间
2022-06-29漏洞描述
Mermaid is a JavaScript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. An attacker is able to inject arbitrary `CSS` into the generated graph allowing them to change the styling of elements outside of the generated graph, and potentially exfiltrate sensitive information by using specially crafted `CSS` selectors. The following example shows how an attacker can exfiltrate the contents of an input field by bruteforcing the `value` attribute one character at a time. Whenever there is an actual match, an `http` request will be made by the browser in order to "load" a background image that will let an attacker know what's the value of the character. This issue may lead to `Information Disclosure` via CSS selectors and functions able to generate HTTP requests. This also allows an attacker to change the document in ways which may lead a user to perform unintended actions, such as clicking on a link, etc. This issue has been resolved in version 9.1.3. Users are advised to upgrade. Users unable to upgrade should ensure that user input is adequately escaped before embedding it in CSS blocks.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/mermaid-js/mermaid/commit/0ae1bdb61adff1cd485caff8c62ec6b8ac57b225 | |
| https://github.com/mermaid-js/mermaid/security/advisories/GHSA-x3vm-38hw-55wf |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | mermaid_project | mermaid | * | From (including) 8.0.0 | Up to (excluding) 9.1.3 | ||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | node-mermaid | * | Up to (including) 8.7.0+ds+~cs27.17.17-3+deb11u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | node-mermaid | * | Up to (including) 8.14.0+~cs11.4.14-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | node-mermaid | * | Up to (including) 8.14.0+~cs11.4.14-1 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 普通权限
- 影响范围 越权影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-74 | 输出中的特殊元素转义处理不恰当（注入） |
| CWE-79 | 在Web页面生成时对输入的转义处理不恰当（跨站脚本） |
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