CVE-2021-43298

Description

The code that performs password matching when using 'Basic' HTTP authentication does not use a constant-time memcmp and has no rate-limiting. This means that an unauthenticated network attacker can brute-force the HTTP basic password, byte-by-byte, by recording the webserver's response time until the unauthorized (401) response.

Categories

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.27%
Third-Party Advisory github.com
Affected: embedthis goahead
Published at:
Updated at:

References

Link Tags
https://github.com/embedthis/goahead/issues/304 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-43298?
CVE-2021-43298 has been scored as a critical severity vulnerability.
How to fix CVE-2021-43298?
To fix CVE-2021-43298, 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-2021-43298 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43298 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-2021-43298?
CVE-2021-43298 affects embedthis goahead.
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