JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.10.17, an authenticated administrator with Applet Host management and deployment permissions can inject Jinja2 expressions into the IP/Host field or Core Service Address field, causing Ansible to evaluate ansible_host inventory data or playbook variables during Applet Host deployment and execute arbitrary commands on the JumpServer control node. This issue is fixed in version 4.10.17.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
Low
Partial data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://github.com/jumpserver/jumpserver/commit/cc57ba0de5f6015746fae11cfc62402…
security-advisories@github.com
https://github.com/jumpserver/jumpserver/pull/16749
security-advisories@github.com
https://github.com/jumpserver/jumpserver/pull/16886
security-advisories@github.com
https://github.com/jumpserver/jumpserver/releases/tag/v4.10.17
security-advisories@github.com
https://github.com/jumpserver/jumpserver/security/advisories/GHSA-22h6-pcgh-9v7q
security-advisories@github.com