cbcvebase.
CVE-2021-43298
published 2022-01-25

CVE-2021-43298: 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…

PriorityP261critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.26%
80.8th percentile
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

2 ranges
VendorProductVersion rangeFixed in
embedthisgoahead< 5.1.45.1.4
embedthisgoahead>= unspecified < 5.1.45.1.4

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
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