KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.21.0 until 1.21.2, 1.22.2, and 1.23.1, ConfigUpdateJob processing in edge/pkg/taskmanager/actions/configupdatejob.go concatenates authenticated user-controlled updateFields values into the keadm config-update command and executes it through a system shell. A user with permission to create or modify ConfigUpdateJob resources can include shell metacharacters in the complete --set value and cause arbitrary commands to execute on an enrolled target edge node with the privileges of the KubeEdge process handling the job.
This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 13
https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.md
security-advisories@github.com
https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.22.md
security-advisories@github.com
https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.23.md
security-advisories@github.com
https://github.com/kubeedge/kubeedge/commit/14f65fc6207787f266cbcb0dceac7f09a81…
security-advisories@github.com
https://github.com/kubeedge/kubeedge/commit/6309a335c8e5e3c154b6bb0a09292f5c7dc…
security-advisories@github.com
https://github.com/kubeedge/kubeedge/commit/ee78415a36911c1a93e59a921c23b8e4ecd…
security-advisories@github.com
https://github.com/kubeedge/kubeedge/pull/7028
security-advisories@github.com
https://github.com/kubeedge/kubeedge/pull/7029
security-advisories@github.com
https://github.com/kubeedge/kubeedge/pull/7030
security-advisories@github.com
https://github.com/kubeedge/kubeedge/releases/tag/v1.21.2
security-advisories@github.com
https://github.com/kubeedge/kubeedge/releases/tag/v1.22.2
security-advisories@github.com
https://github.com/kubeedge/kubeedge/releases/tag/v1.23.1
security-advisories@github.com
https://github.com/kubeedge/kubeedge/security/advisories/GHSA-m3c6-2p7h-cfr3
security-advisories@github.com