Envoy up to 1.22.8/1.23.5/1.24.3/1.25.2 HTTP1 Service input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Envoy up to 1.22.8/1.23.5/1.24.3/1.25.2. This vulnerability affects unknown code of the component HTTP1 Service. The manipulation results in input validation. This vulnerability is cataloged as CVE-2023-27491. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Envoy up to 1.22.8/1.23.5/1.24.3/1.25.2. Affected is an unknown code block of the component HTTP1 Service. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, There is a possibility that non compliant HTTP/1 service may allow malformed requests, potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9.

The weakness was shared 04/05/2023 as GHSA-5jmv-cw9p-f9rp. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-27491 since 03/01/2023. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.22.9, 1.23.6, 1.24.4, 1.25.3 or 1.26.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Input validation
CWE: CWE-20
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 1.22.9/1.23.6/1.24.4/1.25.3/1.26.0

Timelineinfo

03/01/2023 🔍
04/05/2023 +34 days 🔍
04/05/2023 +0 days 🔍
04/05/2023 +0 days 🔍

Sourcesinfo

Advisory: GHSA-5jmv-cw9p-f9rp
Status: Confirmed

CVE: CVE-2023-27491 (🔍)
GCVE (CVE): GCVE-0-2023-27491
GCVE (VulDB): GCVE-100-224964

Entryinfo

Created: 04/05/2023 07:30
Changes: 04/05/2023 07:30 (49)
Complete: 🔍
Cache ID: 216::103

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