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Envoy CVE-2020-25017

HIGH
2020-10-01 cve@mitre.org
Information Disclosure Envoy
8.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.3 HIGH
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

1
CVE Published
Oct 01, 2020 - 17:15 nvd
HIGH 8.3

DescriptionNVD

Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header.

AnalysisAI

Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

Envoy through 1.15.0 only considers the first value when multiple header values are present for some HTTP headers. Envoy’s setCopy() header map API does not replace all existing occurences of a non-inline header. Affected products include: Envoyproxy Envoy. Version information: through 1.15.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2020-25017 vulnerability details – vuln.today
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