漏洞信息
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Vulnerability Title
Lemmy: Login Endpoint User Enumeration via HTTP Response Code Differential
Vulnerability Description
Lemmy is a link aggregator and forum for the fediverse. Prior to 0.19.19 and 1.0.0-beta.1, Lemmy's login endpoint in crates/api/api/src/local_user/login.rs returns different errors depending on whether the username_or_email value exists. LocalUserView::find_by_email_or_name propagates a NotFound response for an unknown account, while an existing account with a wrong password returns LemmyErrorType::IncorrectLogin. This observable response discrepancy, including HTTP 404 for a nonexistent account and HTTP 400 for an incorrect password on an existing account, allows an unauthenticated attacker to confirm registered usernames or email addresses and use the results for targeted credential attacks or social engineering. This issue is fixed in versions 0.19.19 and 1.0.0-beta.1.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
响应差异性信息暴露
Vulnerability Title
LemmyNet lemmy 侧信道信息泄露漏洞
Vulnerability Description
LemmyNet lemmy是LemmyNet组织的一个去中心化的链接聚合与讨论社区平台。 LemmyNet lemmy 0.19.19之前版本和1.0.0-beta.1之前版本存在侧信道信息泄露漏洞,该漏洞源于登录端点根据用户名或邮箱是否存在返回不同错误响应,导致未认证攻击者能够确认已注册的用户名或邮箱地址,并用于定向凭证攻击或社会工程学。
CVSS Information
N/A
Vulnerability Type
N/A