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4.4

F5 CIS may expose SSL keys in debug logs

CVE-2019-6648 · published 7 years ago
Summary

The F5 Container Ingress Service (CIS) used with Kubernetes or Red Hat OpenShift can write BIG‑IP private keys and passphrases to its log files when debug logging is turned on. This could let anyone who can read the logs see sensitive encryption material. Turn off debug logging or apply the latest update that removes secrets from log output.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
f5 container_ingress_service 1.9.0
cpe:2.3:a:f5:container_ingress_service:1.9.0:*:*:*:*:*:*:*
redhat openshift All versions
cpe:2.3:a:redhat:openshift:-:*:*:*:*:*:*:*
Original advisory text
On version 1.9.0, If DEBUG logging is enable, F5 Container Ingress Service (CIS) for Kubernetes and Red Hat OpenShift (k8s-bigip-ctlr) log files may contain BIG-IP secrets such as SSL Private Keys ...
On version 1.9.0, If DEBUG logging is enable, F5 Container Ingress Service (CIS) for Kubernetes and Red Hat OpenShift (k8s-bigip-ctlr) log files may contain BIG-IP secrets such as SSL Private Keys and Private key Passphrases as provided as inputs by an AS3 Declaration.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.4 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-532Insertion of Sensitive Information into Log File
Timeline
Published4 Sep 2019
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2019-6648 · NVD
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