Istio up to 1.8.5/1.9.4 Routing Configuration improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Istio up to 1.8.5/1.9.4. This affects an unknown part of the component Routing Configuration Handler. The manipulation leads to improper authorization. This vulnerability is referenced as CVE-2021-31921. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Istio up to 1.8.5/1.9.4. It has been rated as critical. This issue affects some unknown functionality of the component Routing Configuration Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability.

The weakness was published 06/02/2021 as istio-security-2021-006. It is possible to read the advisory at istio.io. The identification of this vulnerability is CVE-2021-31921. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 1.8.6 or 1.9.5 eliminates this vulnerability.

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

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Improper authorization
CWE: CWE-285 / CWE-266
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: Istio 1.8.6/1.9.5

Timelineinfo

04/30/2021 🔍
06/02/2021 +33 days 🔍
06/02/2021 +0 days 🔍
06/05/2021 +3 days 🔍

Sourcesinfo

Advisory: istio-security-2021-006
Status: Confirmed

CVE: CVE-2021-31921 (🔍)
GCVE (CVE): GCVE-0-2021-31921
GCVE (VulDB): GCVE-100-176255

Entryinfo

Created: 06/02/2021 22:44
Updated: 06/05/2021 15:41
Changes: 06/02/2021 22:44 (38), 06/05/2021 15:41 (5)
Complete: 🔍
Cache ID: 216::103

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