CVE编号
CVE-2021-44878利用情况
暂无补丁情况
N/A披露时间
2022-01-06漏洞描述
Pac4j v5.1 and earlier allows (by default) clients to accept and successfully validate ID Tokens with "none" algorithm (i.e., tokens with no signature) which is not secure and violates the OpenID Core Specification. The "none" algorithm does not require any signature verification when validating the ID tokens, which allows the attacker to bypass the token validation by injecting a malformed ID token using "none" as the value of "alg" key in the header with an empty signature value.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/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae | |
https://openid.net/specs/openid-connect-core-1_0.html#IDToken | |
https://www.pac4j.org/blog/cve_2021_44878_is_this_serious.html |
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 | pac4j | pac4j | * |
Up to (including) 5.1.0 |
- 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 无
- 完整性 高
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