Kubero through 3.1.1 fails to apply authentication guards to the notifications API endpoints, allowing unauthenticated attackers to read webhook secrets and service URLs. Attackers can retrieve stored credentials and register malicious webhooks to intercept pipeline events or suppress alerting by deleting existing configurations.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/kubero-dev/kubero
disclosure@vulncheck.com
https://github.com/kubero-dev/kubero/blob/v3.1.1/server/src/main.ts
disclosure@vulncheck.com
https://github.com/kubero-dev/kubero/blob/v3.1.1/server/src/notifications/notif…
disclosure@vulncheck.com
https://github.com/kubero-dev/kubero/issues/753
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/kubero-through-3.1.1-unauthenticated-notif…
disclosure@vulncheck.com