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OpenVPNCVE-2021-3824

HistorySep 23, 2021 - 3:15 p.m.

CVE-2021-3824

2021-09-2315:15:07

CWE-84

CWE-79

OpenVPN

web.nvd.nist.gov

openvpn

access server

cve-2021-3824

security

vulnerability

web script injection

html injection

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

45.9%

JSON

OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.

Affected configurations

Nvd

Node

openvpnopenvpn_access_serverRange2.9.0–2.9.4

VendorProductVersionCPE
openvpnopenvpn_access_server*cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
openvpn	openvpn_access_server	*	cpe:2.3:a:openvpn:openvpn_access_server::::::::

CNA Affected

[
  {
    "product": "OpenVPN Access Server",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "2.9.0 through 2.9.4"
      }
    ]
  }
]

References

openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-9-5

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

AI Score

6.3

Confidence

High

EPSS

0.001

Percentile

45.9%

JSON

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