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OpenVPNCVE-2021-3606

HistoryJul 02, 2021 - 1:15 p.m.

CVE-2021-3606

2021-07-0213:15:07

CWE-427

OpenVPN

web.nvd.nist.gov

openvpn

cve-2021-3606

windows

arbitrary code execution

openvpn 2.5.3

openssl configuration file

local users

dynamic loadable libraries

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

29.4%

JSON

OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).

Affected configurations

Nvd

Node

openvpnopenvpnRange<2.5.3

AND

microsoftwindowsMatch-

VendorProductVersionCPE
openvpnopenvpn*cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
microsoftwindows-cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
openvpn	openvpn	*	cpe:2.3:a:openvpn:openvpn::::::::
microsoft	windows	-	cpe:2.3:o:microsoft:windows:-:::::::*

CNA Affected

[
  {
    "product": "OpenVPN-GUI",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "2.5.2 and prior releases"
      }
    ]
  }
]

References

community.openvpn.net/openvpn/wiki/CVE-2021-3606

community.openvpn.net/openvpn/wiki/SecurityAnnouncements

Social References

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

29.4%

JSON

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