VDB-230020 · CVE-2023-20882 · EUVD-2023-25054

Cloud Foundry Routing/CF Deployment Client Disconnect resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Cloud Foundry Routing and CF Deployment. Affected is an unknown function of the component Client Disconnect. Executing a manipulation can lead to resource consumption. This vulnerability is registered as CVE-2023-20882. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cloud Foundry Routing and CF Deployment (Cloud Software) (version unknown). It has been declared as problematic. This vulnerability affects an unknown function of the component Client Disconnect. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. CVE summarizes:

In Cloud foundry routing release versions from 0.262.0 and prior to 0.266.0,a bug in the gorouter process can lead to a denial of service of applications hosted on Cloud Foundry. Under the right circumstances, when client connections are closed prematurely, gorouter marks the currently selected backend as failed and removes it from the routing pool.

The weakness was published 05/26/2023. The advisory is shared for download at cloudfoundry.org. This vulnerability was named CVE-2023-20882 since 11/01/2022. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-25054). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Cloud Software

Vendor

Cloud Foundry

Name

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/01/2022 🔍
05/26/2023 +205 days 🔍
05/26/2023 +0 days 🔍
09/02/2025 +830 days 🔍

Sourcesinfo

Advisory: cloudfoundry.org
Status: Confirmed

CVE: CVE-2023-20882 (🔍)
GCVE (CVE): GCVE-0-2023-20882
GCVE (VulDB): GCVE-100-230020
EUVD: 🔍

Entryinfo

Created: 05/26/2023 19:35
Updated: 09/02/2025 03:19
Changes: 05/26/2023 19:35 (39), 06/21/2023 09:12 (11), 01/16/2025 17:04 (26), 09/02/2025 03:19 (1)
Complete: 🔍
Cache ID: 216::103