concretecms concrete_cms 服务端请求伪造（ssrf）

CVE编号

CVE-2021-22969

利用情况

暂无

补丁情况

N/A

披露时间

2021-11-20

漏洞描述

Concrete CMS (formerly concrete5) versions below 8.5.7 has a SSRF mitigation bypass using DNS Rebind attack giving an attacker the ability to fetch cloud IAAS (ex AWS) IAM keys.To fix this Concrete CMS no longer allows downloads from the local network and specifies the validated IP when downloading rather than relying on DNS.Discoverer: Adrian Tiron from FORTBRIDGE ( https://www.fortbridge.co.uk/ )The Concrete CMS team gave this a CVSS 3.1 score of 3.5 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N . Please note that Cloud IAAS provider mis-configurations are not Concrete CMS vulnerabilities. A mitigation for this vulnerability is to make sure that the IMDS configurations are according to a cloud provider's best practices.This fix is also in Concrete version 9.0.0

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://documentation.concretecms.org/developers/introduction/version-history...
https://hackerone.com/reports/1369312

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	concretecms	concrete_cms	*		Up to (excluding) 8.5.7

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-918 服务端请求伪造（SSRF）