CVE-2021-31606 : furlongm openvpn-monitor through 1.1.3 allows Authorization Bypass to disconnect

furlongm openvpn-monitor through 1.1.3 allows Authorization Bypass to disconnect arbitrary clients.

Published 2021-09-27 06:15:08

Updated 2023-12-22 15:15:18

Source MITRE

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2021-31606

Openvpn-monitor Project » Openvpn-monitor
Versions up to, including, (<=) 1.1.3
cpe:2.3:a:openvpn-monitor_project:openvpn-monitor:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

1.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 76 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: nvd@nist.gov (Primary)

https://github.com/furlongm/openvpn-monitor/commit/ddb9d31ef0ec56f578bdacf99ebe9d68455ed8ca

only allow disconnect if feature is enabled and sanitize args (#204) · furlongm/openvpn-monitor@ddb9d31 · GitHub
Patch
http://packetstormsecurity.com/files/164274/OpenVPN-Monitor-1.1.3-Authorization-Bypass-Denial-Of-Service.html

OpenVPN Monitor 1.1.3 Authorization Bypass / Denial Of Service ≈ Packet Storm
Third Party Advisory;VDB Entry
https://github.com/furlongm/openvpn-monitor/releases

Releases · furlongm/openvpn-monitor · GitHub
Third Party Advisory

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