中危 pugjs pug 输出中的特殊元素转义处理不恰当（注入）
CVE编号
CVE-2021-21353利用情况
暂无补丁情况
官方补丁披露时间
2021-03-03漏洞描述
Pug is an npm package which is a high-performance template engine. In pug before version 3.0.1, if a remote attacker was able to control the `pretty` option of the pug compiler, e.g. if you spread a user provided object such as the query parameters of a request into the pug template inputs, it was possible for them to achieve remote code execution on the node.js backend. This is fixed in version 3.0.1. This advisory applies to multiple pug packages including "pug", "pug-code-gen". pug-code-gen has a backported fix at version 2.0.3. This advisory is not exploitable if there is no way for un-trusted input to be passed to pug as the `pretty` option, e.g. if you compile templates in advance before applying user input to them, you do not need to upgrade.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。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 | pugjs | pug | * | Up to (excluding) 3.0.1 | |||||
| 运行在以下环境 | |||||||||
| 应用 | pugjs | pug-code-gen | * | Up to (excluding) 2.0.3 | |||||
| 运行在以下环境 | |||||||||
| 应用 | pugjs | pug-code-gen | * | From (including) 3.0.0 | Up to (excluding) 3.0.2 | ||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 全局影响
- 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） |
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