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Critical severity9.8NVD Advisory· Published Jan 25, 2022· Updated Jun 17, 2026

CVE-2021-43298

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.

Affected products

3
  • Embedthis/Goahead3 versions
    cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:*range: <5.1.4
    • (no CPE)
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

0

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