中危 nextcloud desktop 不可信的搜索路径
CVE编号
CVE-2021-37617利用情况
暂无补丁情况
官方补丁披露时间
2021-08-19漏洞描述
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. The Nextcloud Desktop Client invokes its uninstaller script when being installed to make sure there are no remnants of previous installations. In versions 3.0.3 through 3.2.4, the Client searches the `Uninstall.exe` file in a folder that can be written by regular users. This could lead to a case where a malicious user creates a malicious `Uninstall.exe`, which would be executed with administrative privileges on the Nextcloud Desktop Client installation. This issue is fixed in Nextcloud Desktop Client version 3.3.0. As a workaround, do not allow untrusted users to create content in the `C:\` system folder and verify that there is no malicious `C:\Uninstall.exe` file on the system.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/desktop/pull/3497 | |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2... | |
| https://hackerone.com/reports/1240749 |
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 | desktop | * | From (including) 3.0.3 | Up to (excluding) 3.3.0 | ||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | nextcloud-desktop | * | Up to (excluding) 2.5.1-3+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | nextcloud-desktop | * | Up to (excluding) 3.1.1-2+deb11u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | nextcloud-desktop | * | Up to (excluding) 3.7.3-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | nextcloud-desktop | * | Up to (excluding) 3.10.0-1 | |||||
- 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-426 | 不可信的搜索路径 |
| CWE-427 | 对搜索路径元素未加控制 |
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