`authority-regex` returns the wrong authority in lambdaisland/uri

lambdaisland/uri is a pure Clojure/ClojureScript URI library. In versions prior to 1.14.120 `authority-regex` allows an attacker to send malicious URLs to be parsed by the `lambdaisland/uri` and return the wrong authority. This issue is similar to but distinct from CVE-2020-8910. The regex in question doesn't handle the backslash (`\`) character in the username correctly, leading to a wrong output. ex. a payload of `https://example.com\\@google.com` would return that the host is `google.com`, but the correct host should be `example.com`. Given that the library returns the wrong authority this may be abused to bypass host restrictions depending on how the library is used in an application. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

使用不正确的解析名称或索引

lambdaisland uri 输入验证错误漏洞

lambdaisland/uri是Lambda Island开源的一个纯 Clojure/ClojureScript URI 库。 lambdaisland uri 1.14.120之前版本存在安全漏洞。攻击者利用该漏洞发送恶意URL以供lambdaisland/uri解析并返回错误的权限。

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