node/test/fixtures/x509-escaping/alt-25-cert.pem
Tobias Nießen 466e5415a2
crypto,tls: implement safe x509 GeneralName format
This change introduces JSON-compatible escaping rules for strings that
include X.509 GeneralName components (see RFC 5280). This non-standard
format avoids ambiguities and prevents injection attacks that could
previously lead to X.509 certificates being accepted even though they
were not valid for the target hostname.

These changes affect the format of subject alternative names and the
format of authority information access. The checkServerIdentity function
has been modified to safely handle the new format, eliminating the
possibility of injecting subject alternative names into the verification
logic.

Because each subject alternative name is only encoded as a JSON string
literal if necessary for security purposes, this change will only be
visible in rare cases.

This addresses CVE-2021-44532.

CVE-ID: CVE-2021-44532
PR-URL: https://github.com/nodejs-private/node-private/pull/300
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2022-01-10 22:38:05 +00:00

30 lines
1.7 KiB
Plaintext

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----