Vulnerability Information
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Vulnerability Title
Koa has Host Header Injection via `ctx.hostname`
Vulnerability Description
Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's `ctx.hostname` API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed Host header containing a `@` symbol is received, `ctx.hostname` returns `evil[.]com` - an attacker-controlled value. Applications using `ctx.hostname` for URL generation, password reset links, email verification URLs, or routing decisions are vulnerable to Host header injection attacks. Versions 3.1.2 and 2.16.4 fix the issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Vulnerability Type
输入验证不恰当
Vulnerability Title
koa 输入验证错误漏洞
Vulnerability Description
koa是Koa.js开源的一个使用node.js表达性中间件。 koa 3.1.2之前版本和2.16.4之前版本存在输入验证错误漏洞，该漏洞源于对HTTP Host标头的解析不当，可能导致主机标头注入攻击。
CVSS Information
N/A
Vulnerability Type
N/A