From a4e726428608e352283d745cb0716248d29ecf26 Mon Sep 17 00:00:00 2001
From: Matt Caswell <matt@openssl.org>
Date: Tue, 7 Mar 2023 15:22:40 +0000
Subject: [PATCH] Generate some certificates with the certificatePolicies
 extension

Related-to: CVE-2023-0465

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20585)
---
 test/certs/ca-pol-cert.pem          | 19 +++++++++++++++++++
 test/certs/ee-cert-policies-bad.pem | 20 ++++++++++++++++++++
 test/certs/ee-cert-policies.pem     | 20 ++++++++++++++++++++
 test/certs/mkcert.sh                |  9 +++++++--
 test/certs/setup.sh                 |  6 ++++++
 5 files changed, 72 insertions(+), 2 deletions(-)
 create mode 100644 test/certs/ca-pol-cert.pem
 create mode 100644 test/certs/ee-cert-policies-bad.pem
 create mode 100644 test/certs/ee-cert-policies.pem

diff --git a/test/certs/ca-pol-cert.pem b/test/certs/ca-pol-cert.pem
new file mode 100644
index 0000000000..244af3292b
--- /dev/null
+++ b/test/certs/ca-pol-cert.pem
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/test/certs/ee-cert-policies-bad.pem b/test/certs/ee-cert-policies-bad.pem
new file mode 100644
index 0000000000..0fcd6372b3
--- /dev/null
+++ b/test/certs/ee-cert-policies-bad.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/test/certs/ee-cert-policies.pem b/test/certs/ee-cert-policies.pem
new file mode 100644
index 0000000000..2f06d7433f
--- /dev/null
+++ b/test/certs/ee-cert-policies.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/test/certs/mkcert.sh b/test/certs/mkcert.sh
index 88e8740037..5bba589358 100755
--- a/test/certs/mkcert.sh
+++ b/test/certs/mkcert.sh
@@ -119,11 +119,12 @@ genca() {
     local OPTIND=1
     local purpose=
 
-    while getopts p: o
+    while getopts p:c: o
     do
         case $o in
         p) purpose="$OPTARG";;
-        *) echo "Usage: $0 genca [-p EKU] cn keyname certname cakeyname cacertname" >&2
+        c) certpol="$OPTARG";;
+        *) echo "Usage: $0 genca [-p EKU][-c policyoid] cn keyname certname cakeyname cacertname" >&2
            return 1;;
         esac
     done
@@ -146,6 +147,10 @@ genca() {
     if [ -n "$NC" ]; then
         exts=$(printf "%s\nnameConstraints = %s\n" "$exts" "$NC")
     fi
+    if [ -n "$certpol" ]; then
+        exts=$(printf "%s\ncertificatePolicies = %s\n" "$exts" "$certpol")
+    fi
+
     csr=$(req "$key" "CN = $cn") || return 1
     echo "$csr" |
         cert "$cert" "$exts" -CA "${cacert}.pem" -CAkey "${cakey}.pem" \
diff --git a/test/certs/setup.sh b/test/certs/setup.sh
index 7cd7e78b5e..bd8d49337d 100755
--- a/test/certs/setup.sh
+++ b/test/certs/setup.sh
@@ -465,3 +465,9 @@ OPENSSL_SIGALG=ED448 OPENSSL_KEYALG=ed448 ./mkcert.sh genee ed448 \
 
 # critical id-pkix-ocsp-no-check extension
 ./mkcert.sh geneeextra server.example ee-key ee-cert-ocsp-nocheck ca-key ca-cert "1.3.6.1.5.5.7.48.1.5=critical,DER:05:00"
+
+# certificatePolicies extension
+./mkcert.sh genca -c "1.3.6.1.4.1.16604.998855.1" "CA" ca-key ca-pol-cert root-key root-cert
+./mkcert.sh geneeextra server.example ee-key ee-cert-policies ca-key ca-cert "certificatePolicies=1.3.6.1.4.1.16604.998855.1"
+# We can create a cert with a duplicate policy oid - but its actually invalid!
+./mkcert.sh geneeextra server.example ee-key ee-cert-policies-bad ca-key ca-cert "certificatePolicies=1.3.6.1.4.1.16604.998855.1,1.3.6.1.4.1.16604.998855.1"
-- 
2.36.1