SSLVPN Client : Missing authentication on management interface (CVE-2021-31814)
| Advisory ID | CVE Number | Date discovered | Severity | Advisory revision |
|---|---|---|---|---|
| STORM-2021-019 | CVE-2021-31814 | 04/15/2021 | medium | v1 |
Vulnerability details
Any user with local privileges can access OpenVPN’s managment interface. This could lead to a denial of service and information leak.
Impacted products
| Products | Severity | Detail |
|---|---|---|
| Stormshield Network Security | medium | impacted |
Revisions
| Version | Date | Description |
|---|---|---|
| v1 | 02/09/2021 | Initial release |
Stormshield Network Security |
CVSS v3.1 Overall Score: 6.8
|
Analysis |
Impacted version |
|
An attacker on the host could access OpenVPN’s managment interface. The interface can be used to read logs, show active connections status, or terminate VPN sessions.
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Workaround solution |
Solution |
|
There is no workaround. |
The 3.0.0 update fixes this vulnerability. |
| Attack Vector | Attack Complexity | Privileges Required | User Interaction | Scope | Confidentiality Impact | Integrity Impact | Availability impact |
|---|---|---|---|---|---|---|---|
| Local | Low | Low | None | Unchanged | Low | None | High |
| CVSS Base score: 6.1 | CVSS Vector: (AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H) |
| Exploit Code Maturity | Remediation Level | Report Confidence |
|---|---|---|
| Proof of concept code | Official fix | Confirmed |
| CVSS Temporal score: 5.5 | CVSS Vector: (AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C) |
| Confidentiality Requirement (CR) | Integrity Requirement (IR) | Availability Requirement (AR) |
|---|---|---|
| High | High | High |
| CVSS Environmental score: 6.8 | CVSS Vector: (AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C/CR:H/IR:H/AR:H/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X) |