漏洞信息
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Vulnerability Title
Authelia Missing Username Canonicalization in Basic Auth (LDAP)
Vulnerability Description
Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web portal. In versions 4.38.0 through 4.39.19, when a user authenticates via Basic Auth (i.e via the `Authorization` header with the `Basic` scheme) on the authz verification endpoint, Authelia takes the username directly from the `Authorization` header and passes it as is to the regulation system for ban checking and attempt recording. LDAP treats usernames case insensitively : `john`, `John`, and `JOHN` all bind as the same user. But the regulation SQL queries treat the lookup of these values in certain scenarios as case sensitive. This allows each variation of a usernames case to have its own ban bucket. Upgrade to 4.39.20 to receive a patch. As a workaround, explicitly disable the basic auth mechanism.
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Vulnerability Type
大小写敏感处理不恰当
Vulnerability Title
Authelia 输入验证错误漏洞
Vulnerability Description
Authelia是Authelia组织开源的一个 Web 应用程序的单点登录多因素门户。 Authelia 4.38.0版本至4.39.19版本存在安全漏洞,该漏洞源于通过Basic Auth验证时,直接使用Authorization标头中的用户名进行监管查询,而LDAP对用户名大小写不敏感但SQL查询对大小写敏感,可能导致攻击者利用不同大小写的用户名绕过监管限制。
CVSS Information
N/A
Vulnerability Type
N/A