Envoy up to 1.17.0 JWT Token improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Envoy up to 1.17.0. It has been declared as critical. This issue affects some unknown processing of the component JWT Token Handler. Executing a manipulation can lead to improper authentication. This vulnerability is tracked as CVE-2021-21378. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Envoy up to 1.17.0. It has been declared as critical. This vulnerability affects some unknown processing of the component JWT Token Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 03/11/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-21378. The technical details are unknown and an exploit is not available.

Upgrading to version 1.17.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: 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: 🔍

Upgrade: Envoy 1.17.1
Patch: github.com

Timelineinfo

12/22/2020 🔍
03/11/2021 +79 days 🔍
03/11/2021 +0 days 🔍
03/31/2021 +20 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21378 (🔍)
GCVE (CVE): GCVE-0-2021-21378
GCVE (VulDB): GCVE-100-171142

Entryinfo

Created: 03/11/2021 14:50
Updated: 03/31/2021 17:21
Changes: 03/11/2021 14:50 (38), 03/31/2021 17:16 (6), 03/31/2021 17:21 (8)
Complete: 🔍
Cache ID: 216::103

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