1 | /*
|
---|
2 | * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
|
---|
3 | *
|
---|
4 | * Licensed under the OpenSSL licenses, (the "License");
|
---|
5 | * you may not use this file except in compliance with the License.
|
---|
6 | * You may obtain a copy of the License at
|
---|
7 | * https://www.openssl.org/source/license.html
|
---|
8 | * or in the file LICENSE in the source distribution.
|
---|
9 | */
|
---|
10 |
|
---|
11 | /*
|
---|
12 | * Fuzz ASN.1 parsing for various data structures. Specify which on the
|
---|
13 | * command line:
|
---|
14 | *
|
---|
15 | * asn1 <data structure>
|
---|
16 | */
|
---|
17 |
|
---|
18 | #include <stdio.h>
|
---|
19 | #include <string.h>
|
---|
20 | #include <openssl/asn1.h>
|
---|
21 | #include <openssl/asn1t.h>
|
---|
22 | #include <openssl/dh.h>
|
---|
23 | #include <openssl/dsa.h>
|
---|
24 | #include <openssl/ec.h>
|
---|
25 | #include <openssl/ocsp.h>
|
---|
26 | #include <openssl/pkcs12.h>
|
---|
27 | #include <openssl/rsa.h>
|
---|
28 | #include <openssl/ts.h>
|
---|
29 | #include <openssl/x509v3.h>
|
---|
30 | #include <openssl/cms.h>
|
---|
31 | #include <openssl/err.h>
|
---|
32 | #include <openssl/rand.h>
|
---|
33 | #include <openssl/bio.h>
|
---|
34 | #include <openssl/evp.h>
|
---|
35 | #include <openssl/ssl.h>
|
---|
36 | #include "fuzzer.h"
|
---|
37 |
|
---|
38 | #include "rand.inc"
|
---|
39 |
|
---|
40 | static ASN1_ITEM_EXP *item_type[] = {
|
---|
41 | ASN1_ITEM_ref(ACCESS_DESCRIPTION),
|
---|
42 | #ifndef OPENSSL_NO_RFC3779
|
---|
43 | ASN1_ITEM_ref(ASIdentifierChoice),
|
---|
44 | ASN1_ITEM_ref(ASIdentifiers),
|
---|
45 | ASN1_ITEM_ref(ASIdOrRange),
|
---|
46 | #endif
|
---|
47 | ASN1_ITEM_ref(ASN1_ANY),
|
---|
48 | ASN1_ITEM_ref(ASN1_BIT_STRING),
|
---|
49 | ASN1_ITEM_ref(ASN1_BMPSTRING),
|
---|
50 | ASN1_ITEM_ref(ASN1_BOOLEAN),
|
---|
51 | ASN1_ITEM_ref(ASN1_ENUMERATED),
|
---|
52 | ASN1_ITEM_ref(ASN1_FBOOLEAN),
|
---|
53 | ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
|
---|
54 | ASN1_ITEM_ref(ASN1_GENERALSTRING),
|
---|
55 | ASN1_ITEM_ref(ASN1_IA5STRING),
|
---|
56 | ASN1_ITEM_ref(ASN1_INTEGER),
|
---|
57 | ASN1_ITEM_ref(ASN1_NULL),
|
---|
58 | ASN1_ITEM_ref(ASN1_OBJECT),
|
---|
59 | ASN1_ITEM_ref(ASN1_OCTET_STRING),
|
---|
60 | ASN1_ITEM_ref(ASN1_OCTET_STRING_NDEF),
|
---|
61 | ASN1_ITEM_ref(ASN1_PRINTABLE),
|
---|
62 | ASN1_ITEM_ref(ASN1_PRINTABLESTRING),
|
---|
63 | ASN1_ITEM_ref(ASN1_SEQUENCE),
|
---|
64 | ASN1_ITEM_ref(ASN1_SEQUENCE_ANY),
|
---|
65 | ASN1_ITEM_ref(ASN1_SET_ANY),
|
---|
66 | ASN1_ITEM_ref(ASN1_T61STRING),
|
---|
67 | ASN1_ITEM_ref(ASN1_TBOOLEAN),
|
---|
68 | ASN1_ITEM_ref(ASN1_TIME),
|
---|
69 | ASN1_ITEM_ref(ASN1_UNIVERSALSTRING),
|
---|
70 | ASN1_ITEM_ref(ASN1_UTCTIME),
|
---|
71 | ASN1_ITEM_ref(ASN1_UTF8STRING),
|
---|
72 | ASN1_ITEM_ref(ASN1_VISIBLESTRING),
|
---|
73 | #ifndef OPENSSL_NO_RFC3779
|
---|
74 | ASN1_ITEM_ref(ASRange),
|
---|
75 | #endif
|
---|
76 | ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
|
---|
77 | ASN1_ITEM_ref(AUTHORITY_KEYID),
|
---|
78 | ASN1_ITEM_ref(BASIC_CONSTRAINTS),
|
---|
79 | ASN1_ITEM_ref(BIGNUM),
|
---|
80 | ASN1_ITEM_ref(CBIGNUM),
|
---|
81 | ASN1_ITEM_ref(CERTIFICATEPOLICIES),
|
---|
82 | #ifndef OPENSSL_NO_CMS
|
---|
83 | ASN1_ITEM_ref(CMS_ContentInfo),
|
---|
84 | ASN1_ITEM_ref(CMS_ReceiptRequest),
|
---|
85 | ASN1_ITEM_ref(CRL_DIST_POINTS),
|
---|
86 | #endif
|
---|
87 | #ifndef OPENSSL_NO_DH
|
---|
88 | ASN1_ITEM_ref(DHparams),
|
---|
89 | #endif
|
---|
90 | ASN1_ITEM_ref(DIRECTORYSTRING),
|
---|
91 | ASN1_ITEM_ref(DISPLAYTEXT),
|
---|
92 | ASN1_ITEM_ref(DIST_POINT),
|
---|
93 | ASN1_ITEM_ref(DIST_POINT_NAME),
|
---|
94 | #ifndef OPENSSL_NO_EC
|
---|
95 | ASN1_ITEM_ref(ECPARAMETERS),
|
---|
96 | ASN1_ITEM_ref(ECPKPARAMETERS),
|
---|
97 | #endif
|
---|
98 | ASN1_ITEM_ref(EDIPARTYNAME),
|
---|
99 | ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
|
---|
100 | ASN1_ITEM_ref(GENERAL_NAME),
|
---|
101 | ASN1_ITEM_ref(GENERAL_NAMES),
|
---|
102 | ASN1_ITEM_ref(GENERAL_SUBTREE),
|
---|
103 | #ifndef OPENSSL_NO_RFC3779
|
---|
104 | ASN1_ITEM_ref(IPAddressChoice),
|
---|
105 | ASN1_ITEM_ref(IPAddressFamily),
|
---|
106 | ASN1_ITEM_ref(IPAddressOrRange),
|
---|
107 | ASN1_ITEM_ref(IPAddressRange),
|
---|
108 | #endif
|
---|
109 | ASN1_ITEM_ref(ISSUING_DIST_POINT),
|
---|
110 | #if OPENSSL_API_COMPAT < 0x10200000L
|
---|
111 | ASN1_ITEM_ref(LONG),
|
---|
112 | #endif
|
---|
113 | ASN1_ITEM_ref(NAME_CONSTRAINTS),
|
---|
114 | ASN1_ITEM_ref(NETSCAPE_CERT_SEQUENCE),
|
---|
115 | ASN1_ITEM_ref(NETSCAPE_SPKAC),
|
---|
116 | ASN1_ITEM_ref(NETSCAPE_SPKI),
|
---|
117 | ASN1_ITEM_ref(NOTICEREF),
|
---|
118 | #ifndef OPENSSL_NO_OCSP
|
---|
119 | ASN1_ITEM_ref(OCSP_BASICRESP),
|
---|
120 | ASN1_ITEM_ref(OCSP_CERTID),
|
---|
121 | ASN1_ITEM_ref(OCSP_CERTSTATUS),
|
---|
122 | ASN1_ITEM_ref(OCSP_CRLID),
|
---|
123 | ASN1_ITEM_ref(OCSP_ONEREQ),
|
---|
124 | ASN1_ITEM_ref(OCSP_REQINFO),
|
---|
125 | ASN1_ITEM_ref(OCSP_REQUEST),
|
---|
126 | ASN1_ITEM_ref(OCSP_RESPBYTES),
|
---|
127 | ASN1_ITEM_ref(OCSP_RESPDATA),
|
---|
128 | ASN1_ITEM_ref(OCSP_RESPID),
|
---|
129 | ASN1_ITEM_ref(OCSP_RESPONSE),
|
---|
130 | ASN1_ITEM_ref(OCSP_REVOKEDINFO),
|
---|
131 | ASN1_ITEM_ref(OCSP_SERVICELOC),
|
---|
132 | ASN1_ITEM_ref(OCSP_SIGNATURE),
|
---|
133 | ASN1_ITEM_ref(OCSP_SINGLERESP),
|
---|
134 | #endif
|
---|
135 | ASN1_ITEM_ref(OTHERNAME),
|
---|
136 | ASN1_ITEM_ref(PBE2PARAM),
|
---|
137 | ASN1_ITEM_ref(PBEPARAM),
|
---|
138 | ASN1_ITEM_ref(PBKDF2PARAM),
|
---|
139 | ASN1_ITEM_ref(PKCS12),
|
---|
140 | ASN1_ITEM_ref(PKCS12_AUTHSAFES),
|
---|
141 | ASN1_ITEM_ref(PKCS12_BAGS),
|
---|
142 | ASN1_ITEM_ref(PKCS12_MAC_DATA),
|
---|
143 | ASN1_ITEM_ref(PKCS12_SAFEBAG),
|
---|
144 | ASN1_ITEM_ref(PKCS12_SAFEBAGS),
|
---|
145 | ASN1_ITEM_ref(PKCS7),
|
---|
146 | ASN1_ITEM_ref(PKCS7_ATTR_SIGN),
|
---|
147 | ASN1_ITEM_ref(PKCS7_ATTR_VERIFY),
|
---|
148 | ASN1_ITEM_ref(PKCS7_DIGEST),
|
---|
149 | ASN1_ITEM_ref(PKCS7_ENC_CONTENT),
|
---|
150 | ASN1_ITEM_ref(PKCS7_ENCRYPT),
|
---|
151 | ASN1_ITEM_ref(PKCS7_ENVELOPE),
|
---|
152 | ASN1_ITEM_ref(PKCS7_ISSUER_AND_SERIAL),
|
---|
153 | ASN1_ITEM_ref(PKCS7_RECIP_INFO),
|
---|
154 | ASN1_ITEM_ref(PKCS7_SIGNED),
|
---|
155 | ASN1_ITEM_ref(PKCS7_SIGN_ENVELOPE),
|
---|
156 | ASN1_ITEM_ref(PKCS7_SIGNER_INFO),
|
---|
157 | ASN1_ITEM_ref(PKCS8_PRIV_KEY_INFO),
|
---|
158 | ASN1_ITEM_ref(PKEY_USAGE_PERIOD),
|
---|
159 | ASN1_ITEM_ref(POLICY_CONSTRAINTS),
|
---|
160 | ASN1_ITEM_ref(POLICYINFO),
|
---|
161 | ASN1_ITEM_ref(POLICY_MAPPING),
|
---|
162 | ASN1_ITEM_ref(POLICY_MAPPINGS),
|
---|
163 | ASN1_ITEM_ref(POLICYQUALINFO),
|
---|
164 | ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
|
---|
165 | ASN1_ITEM_ref(PROXY_POLICY),
|
---|
166 | ASN1_ITEM_ref(RSA_OAEP_PARAMS),
|
---|
167 | ASN1_ITEM_ref(RSAPrivateKey),
|
---|
168 | ASN1_ITEM_ref(RSA_PSS_PARAMS),
|
---|
169 | ASN1_ITEM_ref(RSAPublicKey),
|
---|
170 | ASN1_ITEM_ref(SXNET),
|
---|
171 | ASN1_ITEM_ref(SXNETID),
|
---|
172 | ASN1_ITEM_ref(USERNOTICE),
|
---|
173 | ASN1_ITEM_ref(X509),
|
---|
174 | ASN1_ITEM_ref(X509_ALGOR),
|
---|
175 | ASN1_ITEM_ref(X509_ALGORS),
|
---|
176 | ASN1_ITEM_ref(X509_ATTRIBUTE),
|
---|
177 | ASN1_ITEM_ref(X509_CERT_AUX),
|
---|
178 | ASN1_ITEM_ref(X509_CINF),
|
---|
179 | ASN1_ITEM_ref(X509_CRL),
|
---|
180 | ASN1_ITEM_ref(X509_CRL_INFO),
|
---|
181 | ASN1_ITEM_ref(X509_EXTENSION),
|
---|
182 | ASN1_ITEM_ref(X509_EXTENSIONS),
|
---|
183 | ASN1_ITEM_ref(X509_NAME),
|
---|
184 | ASN1_ITEM_ref(X509_NAME_ENTRY),
|
---|
185 | ASN1_ITEM_ref(X509_PUBKEY),
|
---|
186 | ASN1_ITEM_ref(X509_REQ),
|
---|
187 | ASN1_ITEM_ref(X509_REQ_INFO),
|
---|
188 | ASN1_ITEM_ref(X509_REVOKED),
|
---|
189 | ASN1_ITEM_ref(X509_SIG),
|
---|
190 | ASN1_ITEM_ref(X509_VAL),
|
---|
191 | #if OPENSSL_API_COMPAT < 0x10200000L
|
---|
192 | ASN1_ITEM_ref(ZLONG),
|
---|
193 | #endif
|
---|
194 | ASN1_ITEM_ref(INT32),
|
---|
195 | ASN1_ITEM_ref(ZINT32),
|
---|
196 | ASN1_ITEM_ref(UINT32),
|
---|
197 | ASN1_ITEM_ref(ZUINT32),
|
---|
198 | ASN1_ITEM_ref(INT64),
|
---|
199 | ASN1_ITEM_ref(ZINT64),
|
---|
200 | ASN1_ITEM_ref(UINT64),
|
---|
201 | ASN1_ITEM_ref(ZUINT64),
|
---|
202 | NULL
|
---|
203 | };
|
---|
204 |
|
---|
205 | static ASN1_PCTX *pctx;
|
---|
206 |
|
---|
207 | #define DO_TEST(TYPE, D2I, I2D, PRINT) { \
|
---|
208 | const unsigned char *p = buf; \
|
---|
209 | unsigned char *der = NULL; \
|
---|
210 | TYPE *type = D2I(NULL, &p, len); \
|
---|
211 | \
|
---|
212 | if (type != NULL) { \
|
---|
213 | int len2; \
|
---|
214 | BIO *bio = BIO_new(BIO_s_null()); \
|
---|
215 | \
|
---|
216 | PRINT(bio, type); \
|
---|
217 | BIO_free(bio); \
|
---|
218 | len2 = I2D(type, &der); \
|
---|
219 | if (len2 != 0) {} \
|
---|
220 | OPENSSL_free(der); \
|
---|
221 | TYPE ## _free(type); \
|
---|
222 | } \
|
---|
223 | }
|
---|
224 |
|
---|
225 | #define DO_TEST_PRINT_OFFSET(TYPE, D2I, I2D, PRINT) { \
|
---|
226 | const unsigned char *p = buf; \
|
---|
227 | unsigned char *der = NULL; \
|
---|
228 | TYPE *type = D2I(NULL, &p, len); \
|
---|
229 | \
|
---|
230 | if (type != NULL) { \
|
---|
231 | BIO *bio = BIO_new(BIO_s_null()); \
|
---|
232 | \
|
---|
233 | PRINT(bio, type, 0); \
|
---|
234 | BIO_free(bio); \
|
---|
235 | I2D(type, &der); \
|
---|
236 | OPENSSL_free(der); \
|
---|
237 | TYPE ## _free(type); \
|
---|
238 | } \
|
---|
239 | }
|
---|
240 |
|
---|
241 | #define DO_TEST_PRINT_PCTX(TYPE, D2I, I2D, PRINT) { \
|
---|
242 | const unsigned char *p = buf; \
|
---|
243 | unsigned char *der = NULL; \
|
---|
244 | TYPE *type = D2I(NULL, &p, len); \
|
---|
245 | \
|
---|
246 | if (type != NULL) { \
|
---|
247 | BIO *bio = BIO_new(BIO_s_null()); \
|
---|
248 | \
|
---|
249 | PRINT(bio, type, 0, pctx); \
|
---|
250 | BIO_free(bio); \
|
---|
251 | I2D(type, &der); \
|
---|
252 | OPENSSL_free(der); \
|
---|
253 | TYPE ## _free(type); \
|
---|
254 | } \
|
---|
255 | }
|
---|
256 |
|
---|
257 |
|
---|
258 | #define DO_TEST_NO_PRINT(TYPE, D2I, I2D) { \
|
---|
259 | const unsigned char *p = buf; \
|
---|
260 | unsigned char *der = NULL; \
|
---|
261 | TYPE *type = D2I(NULL, &p, len); \
|
---|
262 | \
|
---|
263 | if (type != NULL) { \
|
---|
264 | BIO *bio = BIO_new(BIO_s_null()); \
|
---|
265 | \
|
---|
266 | BIO_free(bio); \
|
---|
267 | I2D(type, &der); \
|
---|
268 | OPENSSL_free(der); \
|
---|
269 | TYPE ## _free(type); \
|
---|
270 | } \
|
---|
271 | }
|
---|
272 |
|
---|
273 |
|
---|
274 | int FuzzerInitialize(int *argc, char ***argv)
|
---|
275 | {
|
---|
276 | pctx = ASN1_PCTX_new();
|
---|
277 | ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT |
|
---|
278 | ASN1_PCTX_FLAGS_SHOW_SEQUENCE | ASN1_PCTX_FLAGS_SHOW_SSOF |
|
---|
279 | ASN1_PCTX_FLAGS_SHOW_TYPE | ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME);
|
---|
280 | ASN1_PCTX_set_str_flags(pctx, ASN1_STRFLGS_UTF8_CONVERT |
|
---|
281 | ASN1_STRFLGS_SHOW_TYPE | ASN1_STRFLGS_DUMP_ALL);
|
---|
282 |
|
---|
283 | OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
|
---|
284 | OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL);
|
---|
285 | ERR_get_state();
|
---|
286 | CRYPTO_free_ex_index(0, -1);
|
---|
287 | FuzzerSetRand();
|
---|
288 |
|
---|
289 | return 1;
|
---|
290 | }
|
---|
291 |
|
---|
292 | int FuzzerTestOneInput(const uint8_t *buf, size_t len)
|
---|
293 | {
|
---|
294 | int n;
|
---|
295 |
|
---|
296 |
|
---|
297 | for (n = 0; item_type[n] != NULL; ++n) {
|
---|
298 | const uint8_t *b = buf;
|
---|
299 | unsigned char *der = NULL;
|
---|
300 | const ASN1_ITEM *i = ASN1_ITEM_ptr(item_type[n]);
|
---|
301 | ASN1_VALUE *o = ASN1_item_d2i(NULL, &b, len, i);
|
---|
302 |
|
---|
303 | if (o != NULL) {
|
---|
304 | BIO *bio = BIO_new(BIO_s_null());
|
---|
305 |
|
---|
306 | ASN1_item_print(bio, o, 4, i, pctx);
|
---|
307 | BIO_free(bio);
|
---|
308 | ASN1_item_i2d(o, &der, i);
|
---|
309 | OPENSSL_free(der);
|
---|
310 | ASN1_item_free(o, i);
|
---|
311 | }
|
---|
312 | }
|
---|
313 |
|
---|
314 | #ifndef OPENSSL_NO_TS
|
---|
315 | DO_TEST(TS_REQ, d2i_TS_REQ, i2d_TS_REQ, TS_REQ_print_bio);
|
---|
316 | DO_TEST(TS_MSG_IMPRINT, d2i_TS_MSG_IMPRINT, i2d_TS_MSG_IMPRINT, TS_MSG_IMPRINT_print_bio);
|
---|
317 | DO_TEST(TS_RESP, d2i_TS_RESP, i2d_TS_RESP, TS_RESP_print_bio);
|
---|
318 | DO_TEST(TS_STATUS_INFO, d2i_TS_STATUS_INFO, i2d_TS_STATUS_INFO, TS_STATUS_INFO_print_bio);
|
---|
319 | DO_TEST(TS_TST_INFO, d2i_TS_TST_INFO, i2d_TS_TST_INFO, TS_TST_INFO_print_bio);
|
---|
320 | DO_TEST_NO_PRINT(TS_ACCURACY, d2i_TS_ACCURACY, i2d_TS_ACCURACY);
|
---|
321 | DO_TEST_NO_PRINT(ESS_ISSUER_SERIAL, d2i_ESS_ISSUER_SERIAL, i2d_ESS_ISSUER_SERIAL);
|
---|
322 | DO_TEST_NO_PRINT(ESS_CERT_ID, d2i_ESS_CERT_ID, i2d_ESS_CERT_ID);
|
---|
323 | DO_TEST_NO_PRINT(ESS_SIGNING_CERT, d2i_ESS_SIGNING_CERT, i2d_ESS_SIGNING_CERT);
|
---|
324 | #endif
|
---|
325 | #ifndef OPENSSL_NO_DH
|
---|
326 | DO_TEST(DH, d2i_DHparams, i2d_DHparams, DHparams_print);
|
---|
327 | DO_TEST(DH, d2i_DHxparams, i2d_DHxparams, DHparams_print);
|
---|
328 | #endif
|
---|
329 | #ifndef OPENSSL_NO_DSA
|
---|
330 | DO_TEST_NO_PRINT(DSA_SIG, d2i_DSA_SIG, i2d_DSA_SIG);
|
---|
331 | DO_TEST_PRINT_OFFSET(DSA, d2i_DSAPrivateKey, i2d_DSAPrivateKey, DSA_print);
|
---|
332 | DO_TEST_PRINT_OFFSET(DSA, d2i_DSAPublicKey, i2d_DSAPublicKey, DSA_print);
|
---|
333 | DO_TEST(DSA, d2i_DSAparams, i2d_DSAparams, DSAparams_print);
|
---|
334 | #endif
|
---|
335 | DO_TEST_PRINT_OFFSET(RSA, d2i_RSAPublicKey, i2d_RSAPublicKey, RSA_print);
|
---|
336 | #ifndef OPENSSL_NO_EC
|
---|
337 | DO_TEST_PRINT_OFFSET(EC_GROUP, d2i_ECPKParameters, i2d_ECPKParameters, ECPKParameters_print);
|
---|
338 | DO_TEST_PRINT_OFFSET(EC_KEY, d2i_ECPrivateKey, i2d_ECPrivateKey, EC_KEY_print);
|
---|
339 | DO_TEST(EC_KEY, d2i_ECParameters, i2d_ECParameters, ECParameters_print);
|
---|
340 | DO_TEST_NO_PRINT(ECDSA_SIG, d2i_ECDSA_SIG, i2d_ECDSA_SIG);
|
---|
341 | #endif
|
---|
342 | DO_TEST_PRINT_PCTX(EVP_PKEY, d2i_AutoPrivateKey, i2d_PrivateKey, EVP_PKEY_print_private);
|
---|
343 | DO_TEST(SSL_SESSION, d2i_SSL_SESSION, i2d_SSL_SESSION, SSL_SESSION_print);
|
---|
344 |
|
---|
345 | ERR_clear_error();
|
---|
346 |
|
---|
347 | return 0;
|
---|
348 | }
|
---|
349 |
|
---|
350 | void FuzzerCleanup(void)
|
---|
351 | {
|
---|
352 | ASN1_PCTX_free(pctx);
|
---|
353 | }
|
---|