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HIGH · 7.4

CVE-2021-23018

Intra-cluster communication does not use TLS. The services within the NGINX Controller 3.x before 3.4.0 namespace are using cleartext protocols inside the cluster.

Vulnerability Description

Intra-cluster communication does not use TLS. The services within the NGINX Controller 3.x before 3.4.0 namespace are using cleartext protocols inside the cluster.

CVSS Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
F5Nginx Controller>= 3.0.0, <= 3.4.0

Related Weaknesses (CWE)

CWE-319

References

FAQ

What is CVE-2021-23018?

CVE-2021-23018 is a vulnerability with a CVSS score of 7.4 (HIGH). Intra-cluster communication does not use TLS. The services within the NGINX Controller 3.x before 3.4.0 namespace are using cleartext protocols inside the cluster.

How severe is CVE-2021-23018?

CVE-2021-23018 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-23018?

Check the references section above for vendor advisories and patch information. Affected products include: F5 Nginx Controller.