CVE-2023-27491

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://datatracker.ietf.org/doc/html/rfc9113#section-8.3	Not Applicable
https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1	Not Applicable
https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp	Exploit Vendor Advisory
https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2	Not Applicable
https://datatracker.ietf.org/doc/html/rfc9113#section-8.3	Not Applicable
https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1	Not Applicable
https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp	Exploit Vendor Advisory
https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2	Not Applicable

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::

History

21 Nov 2024, 07:53

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-04-04 19:15

Updated : 2024-11-21 07:53

NVD link : CVE-2023-27491

Mitre link : CVE-2023-27491

CVE.ORG link : CVE-2023-27491

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-20

Improper Input Validation

CWE-444

Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

{"id": "CVE-2023-27491", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2023-04-04T19:15:07.150", "references": [{"url": "https://datatracker.ietf.org/doc/html/rfc9113#section-8.3", "tags": ["Not Applicable"], "source": "security-advisories@github.com"}, {"url": "https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1", "tags": ["Not Applicable"], "source": "security-advisories@github.com"}, {"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2", "tags": ["Not Applicable"], "source": "security-advisories@github.com"}, {"url": "https://datatracker.ietf.org/doc/html/rfc9113#section-8.3", "tags": ["Not Applicable"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1", "tags": ["Not Applicable"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp", "tags": ["Exploit", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2", "tags": ["Not Applicable"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-444"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2024-11-21T07:53:00.813", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DAD93214-C958-4A69-9291-15D1C22CFD3F", "versionEndExcluding": "1.22.9"}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17BFB303-DA5A-4E83-93F7-3C1EA340E434", "versionEndExcluding": "1.23.6", "versionStartIncluding": "1.23.0"}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92B633B8-FA4A-4630-9302-96F2C8336E36", "versionEndExcluding": "1.24.4", "versionStartIncluding": "1.24.0"}, {"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8AFC6741-6FDF-47F6-A4AF-B5F5233ABB71", "versionEndExcluding": "1.25.3", "versionStartIncluding": "1.25.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}