Istio up to 1.8.5/1.9.4 HTTP Request improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Istio up to 1.8.5/1.9.4. This affects an unknown function of the component HTTP Request Handler. Performing a manipulation results in improper authorization. This vulnerability was named CVE-2021-31920. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Istio up to 1.8.5/1.9.4. This affects an unknown functionality of the component HTTP Request Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 05/27/2021 as istio-security-2021-005. The advisory is shared at istio.io. This vulnerability is uniquely identified as CVE-2021-31920. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

Upgrading to version 1.8.6 or 1.9.5 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: 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: Istio 1.8.6/1.9.5

Timelineinfo

04/30/2021 🔍
05/27/2021 +27 days 🔍
05/27/2021 +0 days 🔍
05/30/2021 +3 days 🔍

Sourcesinfo

Advisory: istio-security-2021-005
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-31920 (🔍)
GCVE (CVE): GCVE-0-2021-31920
GCVE (VulDB): GCVE-100-175953

Entryinfo

Created: 05/27/2021 16:04
Updated: 05/30/2021 09:58
Changes: 05/27/2021 16:04 (38), 05/30/2021 09:58 (6)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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