linuxfoundation dex 密码学签名的验证不恰当

CVE编号

CVE-2020-26290

利用情况

暂无

补丁情况

N/A

披露时间

2020-12-29

漏洞描述

Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).

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/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8
https://github.com/dexidp/dex/releases/tag/v2.27.0
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/...
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/...
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/...
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/

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	linuxfoundation	dex	*		Up to (excluding) 2.27.0

CVSS3评分 9.6

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CWE-ID 漏洞类型 CWE-347 密码学签名的验证不恰当