What is the CVSS score of CVE-2020-27218?

CVE-2020-27218 has a CVSS 3.1 base score of 4.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L. EPSS exploitation probability: 8.1%.

Is there a patch available for CVE-2020-27218?

Yes, a patch is available for CVE-2020-27218. Update the affected software to the latest version immediately.

Jetty CVE-2020-27218

MEDIUM

Sensitive Information in Resource Not Removed Before Reuse (CWE-226)

2020-11-28 emo@eclipse.org

Apache Code Injection Debian Oracle Debian Linux Jetty Kafka Spark Blockchain Platform Communications Services Gatekeeper Oncommand System Manager Snap Creator Framework Retail Eftlink Flexcube Private Banking Communications Session Route Manager Communications Offline Mediation Controller Communications Pricing Design Center Communications Converged Application Server Service Controller Rest Data Services Hyperion Infrastructure Technology Siebel Core Automation Netapp Eclipse

4.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-226 ASVS 5.0 V14 - Data Protection Sensitive info in resource not removed before reuse
Impact	CVSS score of 4.8 (MEDIUM). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 8.1% exploitation probability (EPSS)

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AnalysisAI

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

maven org.eclipse.jetty:jetty-server fix: 9.4.35.v20201120

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in maven

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-226. In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request. Affected products include: Eclipse Jetty, Netapp Oncommand System Manager, Netapp Snap Creator Framework, Oracle Blockchain Platform, Oracle Communications Converged Application Server - Service Controller. Version information: version 9.4.0..

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.8 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

DescriptionNVD

In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.

Threat Intelligence Overview

EPSS Score

8.1%

Top 6% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 8.1%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +8

CVSS: +24

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Affected Products (CPE)NVD

cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:10.0.0:alpha0:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:10.0.0:alpha1:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:10.0.0:beta0:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:10.0.0:beta1:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:10.0.0:beta2:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:11.0.0:alpha0:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:11.0.0:beta1:*:*:*:*:*:*

cpe:2.3:a:eclipse:jetty:11.0.0:beta2:*:*:*:*:*:*

cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:netapp:snap_creator_framework:-:*:*:*:*:*:*:*

cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_converged_application_server_-_service_controller:6.2:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_services_gatekeeper:7.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:oracle:flexcube_private_banking:12.0.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:flexcube_private_banking:12.1.0:*:*:*:*:*:*:*

cpe:2.3:a:oracle:hyperion_infrastructure_technology:11.1.2.6.0:*:*:*:*:*:*:*

+ 7 more

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References

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