CVE-2022-29167— ReDoS vulnerability in header parsing in hawk

ReDoS vulnerability in header parsing in hawk

Hawk is an HTTP authentication scheme providing mechanisms for making authenticated HTTP requests with partial cryptographic verification of the request and response, covering the HTTP method, request URI, host, and optionally the request payload. Hawk used a regular expression to parse `Host` HTTP header (`Hawk.utils.parseHost()`), which was subject to regular expression DoS attack - meaning each added character in the attacker's input increases the computation time exponentially. `parseHost()` was patched in `9.0.1` to use built-in `URL` class to parse hostname instead. `Hawk.authenticate()` accepts `options` argument. If that contains `host` and `port`, those would be used instead of a call to `utils.parseHost()`.

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

未加控制的资源消耗(资源穷尽)

hawk 资源管理错误漏洞

hawk是Mozilla基金会的一个 HTTP 密钥持有者身份验证方案。 hawk 9.0.1版本之前存在安全漏洞，该漏洞源于hawk使用正则表达式解析 HTTP 标头，攻击者利用该漏洞可导致正则表达式所引发的Dos攻击（ReDoS）。

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