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Vulnerability Details :

CVE-2021-27406

Summary
Assigner-icscert
Assigner Org ID-7d14cffa-0d7d-4270-9dc0-52cabd5a23a6
Published At-14 Oct, 2022 | 00:00
Updated At-16 Apr, 2025 | 17:46
Rejected At-
Credits

PerFact OpenVPN-Client

An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.

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:icscert
Assigner Org ID:7d14cffa-0d7d-4270-9dc0-52cabd5a23a6
Published At:14 Oct, 2022 | 00:00
Updated At:16 Apr, 2025 | 17:46
Rejected At:
▼CVE Numbering Authority (CNA)
PerFact OpenVPN-Client

An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.

Affected Products
Vendor
PerFact
Product
OpenVPN-Client
Versions
Affected
  • From unspecified through 1.4.1.0 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-15CWE-15 External Control of System or Configuration Setting
Type: CWE
CWE ID: CWE-15
Description: CWE-15 External Control of System or Configuration Setting
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

PerFact has released Version 1.6.0, which mitigates this vulnerability.

Configurations
Workarounds
Exploits
Credits
Sharon Brizinov of Claroty reported this vulnerability to CISA.
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01
N/A
Hyperlink: https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01
Resource: N/A
▼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://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01
x_transferred
Hyperlink: https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01
Resource:
x_transferred
2. CISA ADP Vulnrichment
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
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:ics-cert@hq.dhs.gov
Published At:14 Oct, 2022 | 17:15
Updated At:18 Oct, 2022 | 13:38

An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.

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
Primary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Secondary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CPE Matches
perfact
perfact
>>openvpn-client>>Versions up to 1.4.1.0(inclusive)
cpe:2.3:a:perfact:openvpn-client:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-610Primarynvd@nist.gov
CWE-15Secondaryics-cert@hq.dhs.gov
CWE ID: CWE-610
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-15
Type: Secondary
Source: ics-cert@hq.dhs.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01ics-cert@hq.dhs.gov
Third Party Advisory
US Government Resource
Hyperlink: https://www.cisa.gov/uscert/ics/advisories/icsa-21-056-01
Source: ics-cert@hq.dhs.gov
Resource:
Third Party Advisory
US Government Resource

Change History

0
Information is not available yet

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