Critical severity · published Mar 16, 2023
CVE-2023-28110
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
9.9
CVSS
0.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JU
Jumpserver · Fit2cloud
before 2.28.8 · source: NVD
KO
Koko · Fit2cloud
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28110
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28110
Patch
https://github.com/jumpserver/jumpserver/releases/tag/v2.28.8
Exploit
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-6x5p-jm59-jh29
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