OpenCA may accept a signature from a certificate if the certificate's chain is trusted by the chain directory of OpenCA.
The OpenCA PKI Development Project is a Certification Authority. A vulnerability exists in the way the libCheckSignature function compares the certificate in the database and the certificate of the signer.
From the OpenCA Security Advisory:
OpenCA may accept the signature of a certificate if the certificate's chain is trusted by the chain directory of OpenCA. This could allow a certificate from another PKI to authorize operations on the used PKI.
Thanks to OpenCA for the information contained in their security advisory. OpenCA credits Alexandru Matei for discovering this vulnerability.
This document was written by Damon Morda.
|Date First Published:||2004-01-19|
|Date Last Updated:||2004-01-22 18:45 UTC|