Hashicorp Vault/Vault Enterprise up to 1.6.3/1.7.0 TLS Certificate certificate validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Hashicorp Vault and Vault Enterprise up to 1.6.3/1.7.0. It has been rated as critical. Affected by this vulnerability is an unknown functionality of the component TLS Certificate Handler. The manipulation leads to certificate validation. This vulnerability is uniquely identified as CVE-2021-27400. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Hashicorp Vault and Vault Enterprise up to 1.6.3/1.7.0 and classified as critical. This issue affects an unknown function of the component TLS Certificate Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. Using CWE to declare the problem leads to CWE-295. The product does not validate, or incorrectly validates, a certificate. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 04/22/2021. It is possible to read the advisory at discuss.hashicorp.com. The identification of this vulnerability is CVE-2021-27400. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

Upgrading to version 1.6.4 or 1.7.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: 🔍

Upgrade: Vault/Vault Enterprise 1.6.4/1.7.1

Timelineinfo

02/19/2021 🔍
04/22/2021 +61 days 🔍
04/22/2021 +0 days 🔍
04/24/2021 +2 days 🔍

Sourcesinfo

Advisory: discuss.hashicorp.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-27400 (🔍)
GCVE (CVE): GCVE-0-2021-27400
GCVE (VulDB): GCVE-100-173327

Entryinfo

Created: 04/22/2021 20:58
Updated: 04/24/2021 08:24
Changes: 04/22/2021 20:58 (38), 04/24/2021 08:24 (6)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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