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Use the untrusted certificate chain to create a valid certificate ID for OCSP_request

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Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22192)
This commit is contained in:
olszomal 2024-01-05 13:41:59 +01:00 committed by Tomas Mraz
parent 52a75f4088
commit d6aafeb107
1 changed files with 30 additions and 14 deletions
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44
apps/s_server.c
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@ -476,7 +476,10 @@ static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
char *proxy = NULL, *no_proxy = NULL;
int use_ssl;
STACK_OF(OPENSSL_STRING) *aia = NULL;
X509 *x = NULL;
X509 *x = NULL, *cert;
X509_NAME *iname;
STACK_OF(X509) *chain = NULL;
SSL_CTX *ssl_ctx;
X509_STORE_CTX *inctx = NULL;
X509_OBJECT *obj;
OCSP_REQUEST *req = NULL;
@ -487,6 +490,7 @@ static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
/* Build up OCSP query from server certificate */
x = SSL_get_certificate(s);
iname = X509_get_issuer_name(x);
aia = X509_get1_ocsp(x);
if (aia != NULL) {
if (!OSSL_HTTP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &use_ssl,
@ -511,21 +515,33 @@ static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx,
proxy = srctx->proxy;
no_proxy = srctx->no_proxy;
inctx = X509_STORE_CTX_new();
if (inctx == NULL)
ssl_ctx = SSL_get_SSL_CTX(s);
if (!SSL_CTX_get0_chain_certs(ssl_ctx, &chain))
goto err;
if (!X509_STORE_CTX_init(inctx,
SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
NULL, NULL))
goto err;
obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509,
X509_get_issuer_name(x));
if (obj == NULL) {
BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
goto done;
for (i = 0; i < sk_X509_num(chain); i++) {
/* check the untrusted certificate chain (-cert_chain option) */
cert = sk_X509_value(chain, i);
if (X509_name_cmp(iname, X509_get_subject_name(cert)) == 0) {
/* the issuer certificate is found */
id = OCSP_cert_to_id(NULL, x, cert);
break;
}
}
if (id == NULL) {
inctx = X509_STORE_CTX_new();
if (inctx == NULL)
goto err;
if (!X509_STORE_CTX_init(inctx, SSL_CTX_get_cert_store(ssl_ctx),
NULL, NULL))
goto err;
obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, iname);
if (obj == NULL) {
BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n");
goto done;
}
id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
X509_OBJECT_free(obj);
}
id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj));
X509_OBJECT_free(obj);
if (id == NULL)
goto err;
req = OCSP_REQUEST_new();