CVE-2022-29167

ReDoS vulnerability in header parsing in hawk

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()`.

Categories

7.4
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.08%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: mozilla hawk
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2022-29167?
CVE-2022-29167 has been scored as a high severity vulnerability.
How to fix CVE-2022-29167?
To fix CVE-2022-29167, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29167 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29167 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-29167?
CVE-2022-29167 affects mozilla hawk.
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