| Event Source: | Microsoft-Windows-CertificationAuthority |
| Event ID: | 133 (0x85) |
| Event log: | Application |
| Event type: | Error |
| Event text (English): | The certification authority (CA) failed to encode a server extension required to validate a certificate or certification revocation list (CRL). The CA will not issue any certificates or CRLs that do not contain this extension. To correct this problem, use the Certification Authority snap-in to remove any Unicode characters in the URLs for the AIA, CDP, and IDP extensions, then restart the CA. |
| Event text (German): | The server extension required for the verification of a certificate or revocation list could not be encoded by the certification authority. The certification authority will not issue certificates or revocation lists that do not contain this extension. To resolve this issue, use the CA snap-in to remove all Unicode characters in the URLs for the "AIA", "CDP" and "IDP" extensions and then restart the CA. |
Description
Do you know TameMyCerts? TameMyCerts is an add-on for the Microsoft certification authority (Active Directory Certificate Services). It extends the function of the certification authority and enables the Application of regulationsto realize the secure automation of certificate issuance. TameMyCerts is unique in the Microsoft ecosystem, has already proven itself in countless companies around the world and is available under a free license. It can downloaded via GitHub and can be used free of charge. Professional maintenance is also offered.
No description has been written for this yet.
Safety assessment
The security assessment is based on the three dimensions of confidentiality, integrity and availability.
No description has been written for this yet.
Microsoft rating
Microsoft evaluates this event in the Securing Public Key Infrastructure (PKI) Whitepaper with a severity score of "Low".
Related links:
- Overview of Windows events generated by the certification authority
- Overview of audit events generated by the Certification Authority
External sources
- Securing Public Key Infrastructure (PKI) (Microsoft)
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