nextcloud nextcloud_server 输出中的特殊元素转义处理不恰当（注入）
CVE编号
CVE-2022-31014利用情况
暂无补丁情况
N/A披露时间
2022-07-06漏洞描述
Nextcloud server is an open source personal cloud server. Affected versions were found to be vulnerable to SMTP command injection. The impact varies based on which commands are supported by the backend SMTP server. However, the main risk here is that the attacker can then hijack an already-authenticated SMTP session and run arbitrary SMTP commands as the email user, such as sending emails to other users, changing the FROM user, and so on. As before, this depends on the configuration of the server itself, but newlines should be sanitized to mitigate such arbitrary SMTP command injection. It is recommended that the Nextcloud Server is upgraded to 22.2.8 , 23.0.5 or 24.0.1. There are no known workarounds for this issue.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/nextcloud/security-advisories/security/advisories/GHSA-264... | |
| https://github.com/nextcloud/server/pull/32428 | |
| https://hackerone.com/reports/1516377 |
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 | nextcloud | nextcloud_server | * | Up to (excluding) 19.0.13.7 | |||||
| 运行在以下环境 | |||||||||
| 应用 | nextcloud | nextcloud_server | * | Up to (excluding) 22.2.8 | |||||
| 运行在以下环境 | |||||||||
| 应用 | nextcloud | nextcloud_server | * | From (including) 20.0.0 | Up to (excluding) 20.0.14.6 | ||||
| 运行在以下环境 | |||||||||
| 应用 | nextcloud | nextcloud_server | * | From (including) 21.0.0 | Up to (excluding) 21.0.9.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | nextcloud | nextcloud_server | * | From (including) 23.0.0 | Up to (excluding) 23.0.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | nextcloud | nextcloud_server | 24.0.0 | - | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 需要
- 可用性 无
- 保密性 无
- 完整性 低
| 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-93 | 对CRLF序列的转义处理不恰当（CRLF注入） |
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