CVE-2023-28110

JumpServer Koko vulnerable to Command Injection for Kubernetes Connection

Severity Score

9.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Jumpserver is a popular open source bastion host, and Koko is a Jumpserver component that is the Go version of coco, refactoring coco's SSH/SFTP service and Web Terminal service. Prior to version 2.28.8, using illegal tokens to connect to a Kubernetes cluster through Koko can result in the execution of dangerous commands that may disrupt the Koko container environment and affect normal usage. The vulnerability has been fixed in v2.28.8.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-03-10 CVE Reserved
2023-03-16 CVE Published
2025-02-25 CVE Updated
2025-02-25 First Exploit
2025-04-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-6x5p-jm59-jh29	2025-02-25

URL	Date	SRC
https://github.com/jumpserver/jumpserver/releases/tag/v2.28.8	2023-03-23

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fit2cloud Search vendor "Fit2cloud"		Jumpserver Search vendor "Fit2cloud" for product "Jumpserver"				< 2.28.8 Search vendor "Fit2cloud" for product "Jumpserver" and version " < 2.28.8"		-		Affected
Fit2cloud Search vendor "Fit2cloud"		Koko Search vendor "Fit2cloud" for product "Koko"				-		go		Affected