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CVE-2021-43298 PUBLISHED CVSS 9.800000190734863 CRITICAL

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.

EPSS 0.38% · 59.1th percentile

Risk Scores

CVSS v3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.38%
59.1th percentile

Affected Products

VendorProductVersions
embedthisgoaheadunspecified, 0

Timeline

References

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