google exposure_notifications_verification_server 缺省权限不正确

CVE编号

CVE-2021-22538

利用情况

暂无

补丁情况

N/A

披露时间

2021-04-01

漏洞描述

A privilege escalation vulnerability impacting the Google Exposure Notification Verification Server (versions prior to 0.23.1), allows an attacker who (1) has UserWrite permissions and (2) is using a carefully crafted request or malicious proxy, to create another user with higher privileges than their own. This occurs due to insufficient checks on the allowed set of permissions. The new user creation event would be captured in the Event Log.

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/google/exposure-notifications-verification-server/commit/e...
https://github.com/google/exposure-notifications-verification-server/releases...
https://github.com/google/exposure-notifications-verification-server/releases...
https://github.com/google/exposure-notifications-verification-server/security...

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	google	exposure_notifications_verification_server	*		Up to (excluding) 0.23.1

CVSS3评分 8.8

• 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 无
• 可用性 高
• 保密性 高
• 完整性 高

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-ID 漏洞类型 CWE-276 缺省权限不正确