Bug ID 698420: SSL handshake fails for some servers if their root certificates are not in the configured CA bundle

Last Modified: Oct 17, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6

Opened: Dec 11, 2017

Severity: 3-Major

Symptoms

SSL code builds the chain only until it can find the first trust anchor. However, the OCSP and CRL code builds the chain all the way up to the root. In a case where the intermediate cert was found, but the root was not found in the CA bundle, the cert chain building fails and the handshake will be aborted.

Impact

SSL handshake fails for some servers if their root certificates are not in the configured CA bundle.

Conditions

Forward Proxy and OCSP are enabled on a serverssl profile

Workaround

Upgrade the ca bundle used to configure 'Trusted Certificate Authorities' on ServerSSL profile to include the root certificate for the server.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips