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ba390f2399
An IP-literal host must only be authenticated via a matching iPAddress SAN, never via the certificate's Common Name (RFC 9110), as the OpenSSL backend already does through X509_check_ip. The Mbed TLS and wolfSSL backends instead fell back to the CN when no IP SAN matched, and recognized IPv4 only. This is a more complete solution for #2476, which gated the CN fallback for IPv4 hosts only; here the same gap is closed for IPv6 as well, and IPv6 iPAddress SANs are actually matched. - Add impl::parse_ip_address() to parse IPv4/IPv6 literals into raw bytes - Match IPv6 (16-byte) iPAddress SANs, not just IPv4 - Skip the CN fallback for IP-literal hosts (both IPv4 and IPv6) - Remove the unused SSLClient::verify_host* dead code - Add regression tests and test certificates for the IP-host cases
30 lines
1.9 KiB
Bash
Executable File
30 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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if [[ $(openssl version) =~ 3\.[2-9]\.[0-9]+ ]]; then
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OPENSSL_X509_FLAG='-x509v1'
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else
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OPENSSL_X509_FLAG='-x509'
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fi
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openssl genrsa 2048 > key.pem
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openssl req -new -batch -config test.conf -key key.pem | openssl x509 -days 3650 -req -signkey key.pem > cert.pem
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openssl req -x509 -config test.conf -key key.pem -sha256 -days 3650 -nodes -out cert2.pem -extensions SAN
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openssl genrsa 2048 > rootCA.key.pem
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openssl req $OPENSSL_X509_FLAG -new -batch -config test.rootCA.conf -key rootCA.key.pem -days 1024 > rootCA.cert.pem
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openssl genrsa 2048 > client.key.pem
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openssl req -new -batch -config test.conf -key client.key.pem | openssl x509 -days 370 -req -CA rootCA.cert.pem -CAkey rootCA.key.pem -CAcreateserial > client.cert.pem
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openssl genrsa -passout pass:test123! 2048 > key_encrypted.pem
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openssl req -new -batch -config test.conf -key key_encrypted.pem | openssl x509 -days 3650 -req -signkey key_encrypted.pem > cert_encrypted.pem
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openssl genrsa 2048 | openssl pkcs8 -topk8 -v1 PBE-SHA1-3DES -passout pass:test012! -out client_encrypted.key.pem
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openssl req -new -batch -config test.conf -key client_encrypted.key.pem -passin pass:test012! | openssl x509 -days 370 -req -CA rootCA.cert.pem -CAkey rootCA.key.pem -CAcreateserial > client_encrypted.cert.pem
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# Certificates for IP-host hostname verification regression tests.
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# cert_ip_cn.pem: CN is an IPv4 literal with NO subjectAltName. An IP host must
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# NOT be authenticated via the CN, so verifying it against this
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# cert must fail.
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openssl req -x509 -key key.pem -sha256 -days 3650 -nodes -subj "/CN=127.0.0.1" -out cert_ip_cn.pem
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# cert_ipv6.pem: CN is an IPv6 literal plus an IPv6 iPAddress SAN for a
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# different address. The SAN address must match; the CN address
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# must be ignored.
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openssl req -x509 -key key.pem -sha256 -days 3650 -nodes -subj "/CN=::1" -addext "subjectAltName=IP:2001:db8::1" -out cert_ipv6.pem
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