PerFact OpenVPN Client up to 1.4.1.0 Config Command external control of setting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability was found in PerFact OpenVPN Client up to 1.4.1.0. It has been declared as very critical. The impacted element is an unknown function of the component Config Command Handler. The manipulation results in external control of setting. This vulnerability was named CVE-2021-27406. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical has been found in PerFact OpenVPN Client up to 1.4.1.0 (Network Encryption Software). Affected is some unknown processing of the component Config Command Handler. The manipulation with an unknown input leads to a external control of setting vulnerability. CWE is classifying the issue as CWE-15. One or more system settings or configuration elements can be externally controlled by a user. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was presented 10/14/2022 as icsa-21-056-01. The advisory is shared for download at cisa.gov. This vulnerability is traded as CVE-2021-27406 since 02/19/2021. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/14/2022).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (ICS-CERT): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: External control of setting
CWE: CWE-15
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/19/2021 🔍
10/14/2022 +601 days 🔍
10/14/2022 +0 days 🔍
10/14/2022 +0 days 🔍

Sourcesinfo

Advisory: icsa-21-056-01
Status: Confirmed

CVE: CVE-2021-27406 (🔍)
GCVE (CVE): GCVE-0-2021-27406
GCVE (VulDB): GCVE-100-210888

Entryinfo

Created: 10/14/2022 23:28
Changes: 10/14/2022 23:28 (30), 10/14/2022 23:29 (20)
Complete: 🔍
Cache ID: 216::103

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