CVE-2021-33880
First published: Sun Jun 06 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Websockets Project Websockets Python | <9.1 | |
| Oracle Communications Cloud Native Core Policy | =1.14.0 | |
| Oracle Communications Cloud Native Core Security Edge Protection Proxy | =1.5.0 | |
| Oracle Communications Cloud Native Core Service Communication Proxy | =1.14.0 | |
| Oracle Communications Cloud Native Core Unified Data Repository | =1.14.0 | |
| pip/websockets | <9.1 | 9.1 |
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Reference Links
- https://github.com/aaugustin/websockets/commit/547a26b685d08cac0aa64e5e65f7867ac0ea9bc0
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-33880
- https://github.com/pypa/advisory-database/tree/main/vulns/websockets/PYSEC-2021-95.yaml
- https://github.com/advisories/GHSA-8ch4-58qp-g3mp (Advisory)
Frequently Asked Questions
What is the severity of CVE-2021-33880?
The severity of CVE-2021-33880 is medium.
How does CVE-2021-33880 affect the aaugustin websockets library?
CVE-2021-33880 affects the aaugustin websockets library version up to 9.1.
What is the vulnerability in CVE-2021-33880?
The vulnerability in CVE-2021-33880 is an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory.
How can an attacker exploit CVE-2021-33880?
An attacker can exploit CVE-2021-33880 by guessing a password via a timing attack.
Are there any fixes or patches available for CVE-2021-33880?
Yes, fixes are available for CVE-2021-33880. Please refer to the references for more information.
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