Vulnerability Details : CVE-2021-33880
The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.
Products affected by CVE-2021-33880
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:1.14.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.14.0:*:*:*:*:*:*:*
- cpe:2.3:a:websockets_project:websockets:*:*:*:*:*:python:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33880
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33880
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.6
|
LOW | AV:N/AC:H/Au:N/C:P/I:N/A:N |
4.9
|
2.9
|
NIST | |
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2021-33880
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33880
-
https://www.oracle.com/security-alerts/cpuapr2022.html
Oracle Critical Patch Update Advisory - April 2022Patch;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujan2022.html
Oracle Critical Patch Update Advisory - January 2022Patch;Third Party Advisory
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https://github.com/aaugustin/websockets/commit/547a26b685d08cac0aa64e5e65f7867ac0ea9bc0
Use constant-time comparison for passwords. · aaugustin/websockets@547a26b · GitHubPatch;Third Party Advisory
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