nextcloud nextcloud_server 信息暴露

CVE编号

CVE-2021-41239

利用情况

暂无

补丁情况

N/A

披露时间

2022-03-09

漏洞描述

Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds.

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-g72...
https://github.com/nextcloud/server/issues/27122
https://github.com/nextcloud/server/pull/29260

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) 20.0.14
	运行在以下环境
	应用	nextcloud	nextcloud_server	*	From (including) 21.0.0	Up to (excluding) 21.0.6
	运行在以下环境
	应用	nextcloud	nextcloud_server	22.2.0	-
	运行在以下环境
	系统	opensuse_Leap_15.3	nextcloud-apache	*		Up to (excluding) 21.0.9-bp153.2.12.1

CVSS3评分 5.3

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 无
• 影响范围 未更改
• 用户交互 无
• 可用性 无
• 保密性 低
• 完整性 无

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CWE-ID 漏洞类型 CWE-200 信息暴露