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 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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 5.0 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

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

Configurations

Configuration 1 (hide)

cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-01-25 20:15

Updated : 2022-02-01 13:46

NVD link : CVE-2021-43298

Mitre link : CVE-2021-43298

CVE.ORG link : CVE-2021-43298

JSON object : View

Products Affected

embedthis

goahead

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

CWE-208

Observable Timing Discrepancy

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