Observable discrepancy in aaugustin websockets
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-33880 |
| CWE-ID | CWE-203 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
websockets Universal components / Libraries / Libraries used by multiple products |
| Vendor | Aymeric Augustin |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Observable discrepancy
EUVDB-ID: #VU54078
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-33880
CWE-ID:
CWE-203 - Observable discrepancy
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to observable timing discrepancy on server when HTTP Basic authentication is enabled with basic_auth_protocol_factory(credentials=...). A remote attacker can guess passwords via timing attack.
Install updates from vendor's website.
Vulnerable software versionswebsockets: 1.0 - 9.0.2
External linkshttp://github.com/aaugustin/websockets/commit/547a26b685d08cac0aa64e5e65f7867ac0ea9bc0
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
