CVE-2022-29167

HIGH

Hawk < 9.0.1 - Denial of Service via Host Header Regular Expression

Title source: llm
STIX 2.1

Description

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()`.

References (2)

Core 2
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/mozilla/hawk/security/advisories/GHSA-44pw-h2cw-w3vq
Patch, Third Party Advisory x_refsource_misc
https://github.com/mozilla/hawk/pull/286

Scores

CVSS v3 7.4
EPSS 0.0096
EPSS Percentile 56.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1333 CWE-400
Status published
Products (2)
mozilla/hawk < 9.0.1
npm/hawk 0 - 9.0.1npm
Published May 05, 2022
Tracked Since Feb 18, 2026