OpenVPN up to 2.5.1 Control Channel Data authentication bypass

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in OpenVPN up to 2.5.1. Affected is an unknown function of the component Control Channel Data Handler. Executing a manipulation can lead to authentication bypass. This vulnerability appears as CVE-2020-15078. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in OpenVPN up to 2.5.1 (Network Encryption Software) and classified as problematic. This vulnerability affects an unknown function of the component Control Channel Data Handler. The manipulation with an unknown input leads to a authentication bypass vulnerability. The CWE definition for the vulnerability is CWE-305. The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error. As an impact it is known to affect confidentiality.

The weakness was presented 04/27/2021. The advisory is available at community.openvpn.net. This vulnerability was named CVE-2020-15078. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Authentication bypass
CWE: CWE-305 / CWE-287
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

06/25/2020 🔍
04/27/2021 +306 days 🔍
04/27/2021 +0 days 🔍
03/06/2025 +1409 days 🔍

Sourcesinfo

Advisory: community.openvpn.net
Status: Confirmed

CVE: CVE-2020-15078 (🔍)
GCVE (CVE): GCVE-0-2020-15078
GCVE (VulDB): GCVE-100-174118

Entryinfo

Created: 04/27/2021 11:49
Updated: 03/06/2025 10:22
Changes: 04/27/2021 11:49 (36), 05/01/2021 15:08 (2), 03/06/2025 10:19 (1), 03/06/2025 10:22 (20)
Complete: 🔍
Committer: lywand
Cache ID: 216::103

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