CVE-2021-43298
—CVSS 3.1
9.8 critical
EPSS
2%p82
Published
()
Modified
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.
- Vendors
- embedthis
- Products
- goahead
- Weakness
- CWE-208, CWE-307
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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