diff options
author | Dr. David von Oheimb <David.von.Oheimb@siemens.com> | 2021-08-17 23:13:28 +0200 |
---|---|---|
committer | Dr. David von Oheimb <dev@ddvo.net> | 2021-11-11 20:18:55 +0100 |
commit | adbd77f6d7cc4efb7b4bde483036fab8e48ce870 (patch) | |
tree | 2de0061bf11418cb9ebd080eb77f136c707040fa /apps | |
parent | b0c1214e1e82bc4c98eadd11d368b4ba9ffa202c (diff) |
X509: Fix handling of AKID and SKID extensions according to configuration
Fixes #16300
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/16342)
Diffstat (limited to 'apps')
-rw-r--r-- | apps/ca.c | 11 | ||||
-rw-r--r-- | apps/include/apps.h | 1 | ||||
-rw-r--r-- | apps/lib/apps.c | 20 | ||||
-rw-r--r-- | apps/pkcs12.c | 2 | ||||
-rw-r--r-- | apps/req.c | 4 | ||||
-rw-r--r-- | apps/x509.c | 4 |
6 files changed, 31 insertions, 11 deletions
@@ -1709,7 +1709,16 @@ static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, /* Initialize the context structure */ X509V3_set_ctx(&ext_ctx, selfsign ? ret : x509, - ret, req, NULL, X509V3_CTX_REPLACE); + ret, NULL /* no need to give req, needed info is in ret */, + NULL, X509V3_CTX_REPLACE); + /* prepare fallback for AKID, but only if issuer cert equals subject cert */ + if (selfsign) { + if (!X509V3_set_issuer_pkey(&ext_ctx, pkey)) + goto end; + if (!cert_matches_key(ret, pkey)) + BIO_printf(bio_err, + "Warning: Signature key and public key of cert do not match\n"); + } /* Lets add the extensions, if there are any */ if (ext_sect) { diff --git a/apps/include/apps.h b/apps/include/apps.h index 9d5db16600..6018a83ca4 100644 --- a/apps/include/apps.h +++ b/apps/include/apps.h @@ -247,6 +247,7 @@ int x509_req_ctrl_string(X509_REQ *x, const char *value); int init_gen_str(EVP_PKEY_CTX **pctx, const char *algname, ENGINE *e, int do_param, OSSL_LIB_CTX *libctx, const char *propq); +int cert_matches_key(const X509 *cert, const EVP_PKEY *pkey); int do_X509_sign(X509 *x, EVP_PKEY *pkey, const char *md, STACK_OF(OPENSSL_STRING) *sigopts, X509V3_CTX *ext_ctx); int do_X509_verify(X509 *x, EVP_PKEY *pkey, STACK_OF(OPENSSL_STRING) *vfyopts); diff --git a/apps/lib/apps.c b/apps/lib/apps.c index b15abac857..82eeaea249 100644 --- a/apps/lib/apps.c +++ b/apps/lib/apps.c @@ -2224,8 +2224,8 @@ static int adapt_keyid_ext(X509 *cert, X509V3_CTX *ext_ctx, idx = X509v3_get_ext_by_OBJ(exts, X509_EXTENSION_get_object(new_ext), -1); if (idx >= 0) { X509_EXTENSION *found_ext = X509v3_get_ext(exts, idx); - ASN1_OCTET_STRING *data = X509_EXTENSION_get_data(found_ext); - int disabled = ASN1_STRING_length(data) <= 2; /* config said "none" */ + ASN1_OCTET_STRING *encoded = X509_EXTENSION_get_data(found_ext); + int disabled = ASN1_STRING_length(encoded) <= 2; /* indicating "none" */ if (disabled) { X509_delete_ext(cert, idx); @@ -2239,6 +2239,16 @@ static int adapt_keyid_ext(X509 *cert, X509V3_CTX *ext_ctx, return rv; } +int cert_matches_key(const X509 *cert, const EVP_PKEY *pkey) +{ + int match; + + ERR_set_mark(); + match = X509_check_private_key(cert, pkey); + ERR_pop_to_mark(); + return match; +} + /* Ensure RFC 5280 compliance, adapt keyIDs as needed, and sign the cert info */ int do_X509_sign(X509 *cert, EVP_PKEY *pkey, const char *md, STACK_OF(OPENSSL_STRING) *sigopts, X509V3_CTX *ext_ctx) @@ -2254,16 +2264,14 @@ int do_X509_sign(X509 *cert, EVP_PKEY *pkey, const char *md, goto end; /* - * Add default SKID before such that default AKID can make use of it + * Add default SKID before AKID such that AKID can make use of it * in case the certificate is self-signed */ /* Prevent X509_V_ERR_MISSING_SUBJECT_KEY_IDENTIFIER */ if (!adapt_keyid_ext(cert, ext_ctx, "subjectKeyIdentifier", "hash", 1)) goto end; /* Prevent X509_V_ERR_MISSING_AUTHORITY_KEY_IDENTIFIER */ - ERR_set_mark(); - self_sign = X509_check_private_key(cert, pkey); - ERR_pop_to_mark(); + self_sign = cert_matches_key(cert, pkey); if (!adapt_keyid_ext(cert, ext_ctx, "authorityKeyIdentifier", "keyid, issuer", !self_sign)) goto end; diff --git a/apps/pkcs12.c b/apps/pkcs12.c index dcb173f201..acc45c405a 100644 --- a/apps/pkcs12.c +++ b/apps/pkcs12.c @@ -555,7 +555,7 @@ int pkcs12_main(int argc, char **argv) /* Look for matching private key */ for (i = 0; i < sk_X509_num(certs); i++) { x = sk_X509_value(certs, i); - if (X509_check_private_key(x, key)) { + if (cert_matches_key(x, key)) { ee_cert = x; /* Zero keyid and alias */ X509_keyid_set1(ee_cert, NULL, 0); diff --git a/apps/req.c b/apps/req.c index 7997ea7649..274f839902 100644 --- a/apps/req.c +++ b/apps/req.c @@ -838,11 +838,9 @@ int req_main(int argc, char **argv) if (CAcert == NULL) { if (!X509V3_set_issuer_pkey(&ext_ctx, issuer_key)) goto end; - ERR_set_mark(); - if (!X509_check_private_key(new_x509, issuer_key)) + if (!cert_matches_key(new_x509, issuer_key)) BIO_printf(bio_err, "Warning: Signature key and public key of cert do not match\n"); - ERR_pop_to_mark(); } X509V3_set_nconf(&ext_ctx, req_conf); diff --git a/apps/x509.c b/apps/x509.c index b88fb4f5ea..ff95821bab 100644 --- a/apps/x509.c +++ b/apps/x509.c @@ -810,6 +810,10 @@ int x509_main(int argc, char **argv) goto end; if (!x509toreq && !reqfile && !newcert && !self_signed(ctx, x)) goto end; + } else { + if (privkey != NULL && !cert_matches_key(x, privkey)) + BIO_printf(bio_err, + "Warning: Signature key and public key of cert do not match\n"); } if (sno != NULL && !X509_set_serialNumber(x, sno)) |