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Cisco Bug: CSCur00741 - Enforce checking of CertSign bit for CAPF certificate

Last Modified

Jun 08, 2017

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

10.5(1.10000.7)

Description (partial)

Symptom:
If you upload a 3rd party CA signed CAPF certificate without the Certificate Sign bit checked, phones will not register if they have a Secure Profile assigned to them.

Conditions:
The issue is that CAPF certificate that is signed by CA does not have the "Certificate Sign" bit set in the key usage field.
Below is the extract:
=================================================
            X509v3 Key Usage:
                Digital Signature, Key Encipherment
=================================================
 
 
For a self signed certs the key usage field would be as below:
=================================================
        X509v3 extensions:
            X509v3 Key Usage:
                Digital Signature, Key Encipherment, Certificate Sign
=================================================
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