9.8
CRITICAL
CVE-2021-43298
Apache HTTPD Basic Authentication Password Brute-Force
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.

INFO

Published Date :

Jan. 25, 2022, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 6:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-43298 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Embedthis goahead
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-43298.

URL Resource
https://github.com/embedthis/goahead/issues/304 Third Party Advisory
https://github.com/embedthis/goahead/issues/304 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-43298 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-43298 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/embedthis/goahead/issues/304
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 01, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/embedthis/goahead/issues/304 No Types Assigned https://github.com/embedthis/goahead/issues/304 Third Party Advisory
    Added CWE NIST CWE-307
    Added CPE Configuration OR *cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.42 }} -0.06%

score

0.73746

percentile

CVSS31 - Vulnerability Scoring System
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