CVE-2023-28110 - CVE House
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Status published Medium CVE-2023-28110

JumpServer Koko vulnerable to Command Injection for Kubernetes Connection

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Critical 10

Affected Vendor

Affected Software

jumpserver
Vulnerable Versions:
< 2.28.8

Timeline

Official Publish: March 16th, 2023
Last Modified: February 25th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:H

Weaknesses (CWE)

CWE-77

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1105 Ingress Tool Transfer
Command and Control