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Vulnerability Details :

CVE-2022-0547

Summary
Assigner-OpenVPN
Assigner Org ID-36a55730-e66d-4d39-8ca6-3c3b3017965e
Published At-18 Mar, 2022 | 18:00
Updated At-23 Apr, 2025 | 18:46
Rejected At-
Credits

OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:OpenVPN
Assigner Org ID:36a55730-e66d-4d39-8ca6-3c3b3017965e
Published At:18 Mar, 2022 | 18:00
Updated At:23 Apr, 2025 | 18:46
Rejected At:
▼CVE Numbering Authority (CNA)

OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

Affected Products
Vendor
n/a
Product
OpenVPN
Versions
Affected
  • version 2.1 until version 2.4.12 and 2.5.6.
Problem Types
TypeCWE IDDescription
CWECWE-305CWE-305 - Authentication Bypass by Primary Weakness
Type: CWE
CWE ID: CWE-305
Description: CWE-305 - Authentication Bypass by Primary Weakness
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
x_refsource_MISC
https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
x_refsource_MISC
https://openvpn.net/community-downloads/
x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
vendor-advisory
x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
vendor-advisory
x_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
mailing-list
x_refsource_MLIST
Hyperlink: https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
Resource:
x_refsource_MISC
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
Resource:
x_refsource_MISC
Hyperlink: https://openvpn.net/community-downloads/
Resource:
x_refsource_MISC
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
Resource:
vendor-advisory
x_refsource_FEDORA
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
Resource:
vendor-advisory
x_refsource_FEDORA
Hyperlink: https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
Resource:
mailing-list
x_refsource_MLIST
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
x_refsource_MISC
x_transferred
https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
x_refsource_MISC
x_transferred
https://openvpn.net/community-downloads/
x_refsource_MISC
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
vendor-advisory
x_refsource_FEDORA
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
vendor-advisory
x_refsource_FEDORA
x_transferred
https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
mailing-list
x_refsource_MLIST
x_transferred
Hyperlink: https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://openvpn.net/community-downloads/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
Resource:
vendor-advisory
x_refsource_FEDORA
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
Resource:
vendor-advisory
x_refsource_FEDORA
x_transferred
Hyperlink: https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
Resource:
mailing-list
x_refsource_MLIST
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@openvpn.net
Published At:18 Mar, 2022 | 18:15
Updated At:07 Nov, 2023 | 03:41

OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches
openvpn
openvpn
>>openvpn>>Versions from 2.1.0(inclusive) to 2.4.12(exclusive)
cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
openvpn
openvpn
>>openvpn>>Versions from 2.5.0(inclusive) to 2.5.6(exclusive)
cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>36
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
Debian GNU/Linux
debian
>>debian_linux>>9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-287Primarynvd@nist.gov
CWE-305Secondarysecurity@openvpn.net
CWE ID: CWE-287
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-305
Type: Secondary
Source: security@openvpn.net
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://community.openvpn.net/openvpn/wiki/CVE-2022-0547security@openvpn.net
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncementssecurity@openvpn.net
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00002.htmlsecurity@openvpn.net
Mailing List
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/security@openvpn.net
N/A
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/security@openvpn.net
N/A
https://openvpn.net/community-downloads/security@openvpn.net
Patch
Vendor Advisory
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
Source: security@openvpn.net
Resource:
Vendor Advisory
Hyperlink: https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
Source: security@openvpn.net
Resource:
Vendor Advisory
Hyperlink: https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
Source: security@openvpn.net
Resource:
Mailing List
Third Party Advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJ35WKPME4HYNQCQNAJHLCZOJL2SAE/
Source: security@openvpn.net
Resource: N/A
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R36OYC5SJ6FLPVAYJYYT4MOJ2I7MGYFF/
Source: security@openvpn.net
Resource: N/A
Hyperlink: https://openvpn.net/community-downloads/
Source: security@openvpn.net
Resource:
Patch
Vendor Advisory

Change History

0
Information is not available yet

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