Istio up to 1.9.7/1.10.3/1.11.0 HTTP Host Header Hostname improper authorization

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 Istio up to 1.9.7/1.10.3/1.11.0. It has been declared as critical. Affected by this issue is some unknown functionality of the component HTTP Host Header Handler. The manipulation of the argument Hostname results in improper authorization. This vulnerability is identified as CVE-2021-39155. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Istio up to 1.9.7/1.10.3/1.11.0. It has been classified as critical. Affected is some unknown processing of the component HTTP Host Header Handler. The manipulation of the argument hostname 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 released 08/25/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-39155. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 1.9.8, 1.10.4 or 1.11.1 eliminates this vulnerability.

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Productinfo

Name

Version

Website

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: 🔍

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 1.9.8/1.10.4/1.11.1

Timelineinfo

08/16/2021 🔍
08/25/2021 +9 days 🔍
08/25/2021 +0 days 🔍
08/29/2021 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-39155 (🔍)
GCVE (CVE): GCVE-0-2021-39155
GCVE (VulDB): GCVE-100-181446

Entryinfo

Created: 08/25/2021 11:34
Updated: 08/29/2021 08:24
Changes: 08/25/2021 11:34 (38), 08/29/2021 08:23 (3), 08/29/2021 08:24 (1)
Complete: 🔍
Cache ID: 216::103

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