Inadequate Certificate Chain Verification in OpenCA 0.9.1.6 and Earlier

CVE-2004-0004 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

The libCheckSignature function in crypto-utils.lib for OpenCA 0.9.1.6 and earlier only compares the serial of the signer's certificate and the one in the database, which can cause OpenCA to incorrectly accept a signature if the certificate's chain is trusted by OpenCA's chain directory, allowing remote attackers to spoof requests from other users.

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