What is the CVSS score of CVE-2017-4960?

CVE-2017-4960 has a CVSS 3.0 base score of 7.5 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.5%.

Is there a patch available for CVE-2017-4960?

Yes, a patch is available for CVE-2017-4960. Update the affected software to the latest version immediately.

Cloud Foundry CVE-2017-4960

HIGH

2017-03-10 security_alert@emc.com

Denial Of Service Cloud Foundry Cloud Foundry Uaa Bosh Cloud Foundry Uaa Cloudfoundry Pivotal Software

7.5

CVSS 3.0 · NVD

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Vulnerability Assessment

Impact	CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.45%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.5% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered in Cloud Foundry release v247 through v252, UAA stand-alone release v3.9.0 through v3.11.0, and UAA Bosh Release v21 through v26. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

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.cloudfoundry.identity:cloudfoundry-identity-server fix: 3.9.8, 3.12.0

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

An issue was discovered in Cloud Foundry release v247 through v252, UAA stand-alone release v3.9.0 through v3.11.0, and UAA Bosh Release v21 through v26. There is a potential to subject the UAA OAuth clients to a denial of service attack. Affected products include: Cloudfoundry Cloud Foundry Uaa Bosh, Pivotal Software Cloud Foundry, Pivotal Software Cloud Foundry Uaa.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

DescriptionCVE.org

Threat Intelligence Overview

EPSS Score

0.5%

Top 36% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

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 HIGH

CISA KEV No

Public POC No

EPSS 0.5%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +38

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:21:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:22:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:23:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24.1:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24.2:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24.3:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24.4:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24.5:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:24.6:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:25:*:*:*:*:*:*:*

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:26:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry:247.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry:248.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry:249.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry:250.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry:251.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry:252.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry_uaa:3.9.0:*:*:*:*:*:*:*

cpe:2.3:a:pivotal_software:cloud_foundry_uaa:3.9.1:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://www.cloudfoundry.org/cve-2017-4960/ REF http://www.securityfocus.com/bid/96780

Search Externally

GitHub PoC

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