5111374265

Committed 29 May 2023 11:19AM UTC coverage: 92.227% (+0.5%) from 91.723%

Build # 5111374265

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push

github

Committed by

randombit

Commit Message

Next release will be 3.1.0. Update release notes

Run Details

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11886470.91 hits per line

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36.51

/src/fuzzer/tls_server.cpp

/*
* (C) 2015,2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "fuzzers.h"

#include <botan/data_src.h>
#include <botan/pkcs8.h>
#include <botan/tls_server.h>
#include <botan/tls_session_manager_noop.h>

const char* fixed_rsa_key =
   "-----BEGIN PRIVATE KEY-----\n"
   "MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCe6qqpMQVJ7zCJ\n"
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   "kbf4VLg8Vk9u/R3RU1HsYWhe\n"
   "-----END PRIVATE KEY-----\n";

const char* fixed_rsa_cert =
   "-----BEGIN CERTIFICATE-----\n"
   "MIIDUDCCAjgCCQD7pIb1ZsoafjANBgkqhkiG9w0BAQsFADBqMQswCQYDVQQGEwJW\n"
   "VDEQMA4GA1UECAwHVmVybW9udDEWMBQGA1UEBwwNVGhlIEludGVybmV0czEUMBIG\n"
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   "Dk02a/1AOJZdZReDbgXhlqaUx5pk/rzo4mDzvu5HSCeXmClz\n"
   "-----END CERTIFICATE-----\n";

class Fuzzer_TLS_Server_Creds : public Botan::Credentials_Manager {
   public:
      Fuzzer_TLS_Server_Creds() {
         Botan::DataSource_Memory cert_in(fixed_rsa_cert);
         m_rsa_cert.reset(new Botan::X509_Certificate(cert_in));

         Botan::DataSource_Memory key_in(fixed_rsa_key);
         m_rsa_key.reset(Botan::PKCS8::load_key(key_in).release());
      }

      std::vector<Botan::X509_Certificate> cert_chain(
         const std::vector<std::string>& algos,
         const std::vector<Botan::AlgorithmIdentifier>& /*signature_schemes*/,
         const std::string& /*type*/,
         const std::string& /*hostname*/) override {
         std::vector<Botan::X509_Certificate> v;

         for(auto algo : algos) {
            if(algo == "RSA") {
               v.push_back(*m_rsa_cert);
               break;
            }
         }

         return v;
      }

      std::shared_ptr<Botan::Private_Key> private_key_for(const Botan::X509_Certificate& /*cert*/,
                                                          const std::string& type,
                                                          const std::string& /*context*/) override {
         if(type == "RSA")
            return m_rsa_key;
         return nullptr;
      }

      std::string psk_identity_hint(const std::string&, const std::string&) override { return "psk_hint"; }

      std::string psk_identity(const std::string&, const std::string&, const std::string&) override { return "psk_id"; }

      Botan::SymmetricKey psk(const std::string&, const std::string&, const std::string&) override {
         return Botan::SymmetricKey("AABBCCDDEEFF00112233445566778899");
      }

   private:
      std::unique_ptr<Botan::X509_Certificate> m_rsa_cert;
      std::shared_ptr<Botan::Private_Key> m_rsa_key;
};

class Fuzzer_TLS_Policy : public Botan::TLS::Policy {
   public:
      // TODO: Enable this once the TLS 1.3 server implementation is ready.
      //       Maybe even build individual fuzz targets for different versions.
      bool allow_tls13() const override { return false; }

      std::vector<uint16_t> ciphersuite_list(Botan::TLS::Protocol_Version) const override {
         std::vector<uint16_t> ciphersuites;

         for(auto&& suite : Botan::TLS::Ciphersuite::all_known_ciphersuites()) {
            if(suite.valid())
               ciphersuites.push_back(suite.ciphersuite_code());
         }

         return ciphersuites;
      }
};

class Fuzzer_TLS_Server_Callbacks : public Botan::TLS::Callbacks {
   public:
      void tls_emit_data(std::span<const uint8_t>) override {
         // discard
      }

      void tls_record_received(uint64_t, std::span<const uint8_t>) override {
         // ignore peer data
      }

      void tls_alert(Botan::TLS::Alert) override {
         // ignore alert
      }

      std::string tls_server_choose_app_protocol(const std::vector<std::string>& client_protos) override {
         if(client_protos.size() > 1)
            return client_protos[0];
         else
            return "fuzzy";
      }

      void tls_verify_cert_chain(const std::vector<Botan::X509_Certificate>& cert_chain,
                                 const std::vector<std::optional<Botan::OCSP::Response>>& ocsp_responses,
                                 const std::vector<Botan::Certificate_Store*>& trusted_roots,
                                 Botan::Usage_Type usage,
                                 std::string_view hostname,
                                 const Botan::TLS::Policy& policy) override {
         try {
            // try to validate to exercise those code paths
            Botan::TLS::Callbacks::tls_verify_cert_chain(
               cert_chain, ocsp_responses, trusted_roots, usage, hostname, policy);
         } catch(...) {
            // ignore validation result
         }
      }
};

void fuzz(const uint8_t in[], size_t len) {
   if(len <= 1)
      return;

   auto session_manager = std::make_shared<Botan::TLS::Session_Manager_Noop>();
   auto policy = std::make_shared<Fuzzer_TLS_Policy>();
   Botan::TLS::Server_Information info("server.name", 443);
   auto creds = std::make_shared<Fuzzer_TLS_Server_Creds>();
   auto callbacks = std::make_shared<Fuzzer_TLS_Server_Callbacks>();

   const bool is_datagram = in[0] & 1;

   Botan::TLS::Server server(callbacks, session_manager, creds, policy, fuzzer_rng_as_shared(), is_datagram);

   try {
      server.received_data(in + 1, len - 1);
   } catch(std::exception& e) {}
}

1	/*
2	* (C) 2015,2016 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include "fuzzers.h"
8
9	#include <botan/data_src.h>
10	#include <botan/pkcs8.h>
11	#include <botan/tls_server.h>
12	#include <botan/tls_session_manager_noop.h>
13
14	const char* fixed_rsa_key =
15	"-----BEGIN PRIVATE KEY-----\n"
16	"MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCe6qqpMQVJ7zCJ\n"
17	"oSnpxia0yO6M7Ie3FGqPcd0DzueC+kWPvuHQ+PpP5vfO6qqRaDVII37PFX5NUZQm\n"
18	"GK/rAm7spjIHTCMgqSZ8pN13LU8m1gDwIdu9al16LXN9zZjB67uLlFn2trtLi234\n"
19	"i0cnyeF8IC0cz7tgCOzMSVEBcqJjkdgGrZ3WUgOXecVm2lXVrYlEiaSxFp4VOE9k\n"
20	"RFeVrELCjmNtc4hRd1yJsF+vObCtvyqGYQE1Qcb0MVSQDBHMkiUVmO6zuW7td5ef\n"
21	"O/1OyntQJGyVa+SnWbkSLCybta2J7MreHENrF5GA0K1KL140SNRHeWifRMuNQua7\n"
22	"qmKXMBTFAgMBAAECggEAIk3fxyQI0zvpy1vZ01ft1QqmzA7nAPNMSWi33/GS8iga\n"
23	"SfxXfKeySPs/tQ/dAARxs//NiOBH4mLgyxR7LQzaawU5OXALCSraXv+ruuUx990s\n"
24	"WKnGaG4EfbJAAwEVn47Gbkv425P4fEc91vAhzQn8PbIoatbAyOtESpjs/pYDTeC/\n"
25	"mnJId8gqO90cqyRECEMjk9sQ8iEjWPlik4ayGlUVbeeMu6/pJ9F8IZEgkLZiNDAB\n"
26	"4anmOFaT7EmqUjI4IlcaqfbbXyDXlvWUYukidEss+CNvPuqbQHBDnpFVvBxdDR2N\n"
27	"Uj2D5Xd5blcIe2/+1IVRnznjoQ5zvutzb7ThBmMehQKBgQDOITKG0ht2kXLxjVoR\n"
28	"r/pVpx+f3hs3H7wE0+vrLHoQgkVjpMWXQ47YuZTT9rCOOYNI2cMoH2D27t1j78/B\n"
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30	"tGYBRRJ+JJxjj1zPXj9SGshPgwKBgQDFXUtoxY3mCStH3+0b1qxGG9r1L5goHEmd\n"
31	"Am8WBYDheNpL0VqPNzouhuM/ZWMGyyAs/py6aLATe+qhR1uX5vn7LVZwjCSONZ4j\n"
32	"7ieEEUh1BHetPI1oI5PxgokRYfVuckotqVseanI/536Er3Yf2FXNQ1/ceVp9WykX\n"
33	"3mYTKMhQFwKBgQDKakcXpZNaZ5IcKdZcsBZ/rdGcR5sqEnursf9lvRNQytwg8Vkn\n"
34	"JSxNHlBLpV/TCh8lltHRwJ6TXhUBYij+KzhWbx5FWOErHDOWTMmArqtp7W6GcoJT\n"
35	"wVJWjxXzp8CApYQMWVSQXpckJL7UvHohZO0WKiHyxTjde5aD++TqV2qEyQKBgBbD\n"
36	"jvoTpy08K4DLxCZs2Uvw1I1pIuylbpwsdrGciuP2s38BM6fHH+/T4Qwj3osfDKQD\n"
37	"7gHWJ1Dn/wUBHQBlRLoC3bB3iZPZfVb5lhc2gxv0GvWhQVIcoGi/vJ2DpfJKPmIL\n"
38	"4ZWdg3X5dm9JaZ98rVDSj5D3ckd5J0E4hp95GbmbAoGBAJJHM4O9lx60tIjw9Sf/\n"
39	"QmKWyUk0NLnt8DcgRMW7fVxtzPNDy9DBKGIkDdWZ2s+ForICA3C9WSxBC1EOEHGG\n"
40	"xkg2xKt66CeutGroP6M191mHQrRClt1VbEYzQFX21BCk5kig9i/BURyoTHtFiV+t\n"
41	"kbf4VLg8Vk9u/R3RU1HsYWhe\n"
42	"-----END PRIVATE KEY-----\n";
43
44	const char* fixed_rsa_cert =
45	"-----BEGIN CERTIFICATE-----\n"
46	"MIIDUDCCAjgCCQD7pIb1ZsoafjANBgkqhkiG9w0BAQsFADBqMQswCQYDVQQGEwJW\n"
47	"VDEQMA4GA1UECAwHVmVybW9udDEWMBQGA1UEBwwNVGhlIEludGVybmV0czEUMBIG\n"
48	"A1UECgwLTWFuZ29zIFIgVXMxGzAZBgNVBAMMEnNlcnZlci5leGFtcGxlLmNvbTAe\n"
49	"Fw0xNjAxMDYxNzQ3MjNaFw0yNjAxMDMxNzQ3MjNaMGoxCzAJBgNVBAYTAlZUMRAw\n"
50	"DgYDVQQIDAdWZXJtb250MRYwFAYDVQQHDA1UaGUgSW50ZXJuZXRzMRQwEgYDVQQK\n"
51	"DAtNYW5nb3MgUiBVczEbMBkGA1UEAwwSc2VydmVyLmV4YW1wbGUuY29tMIIBIjAN\n"
52	"BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnuqqqTEFSe8wiaEp6cYmtMjujOyH\n"
53	"txRqj3HdA87ngvpFj77h0Pj6T+b3zuqqkWg1SCN+zxV+TVGUJhiv6wJu7KYyB0wj\n"
54	"IKkmfKTddy1PJtYA8CHbvWpdei1zfc2Yweu7i5RZ9ra7S4tt+ItHJ8nhfCAtHM+7\n"
55	"YAjszElRAXKiY5HYBq2d1lIDl3nFZtpV1a2JRImksRaeFThPZERXlaxCwo5jbXOI\n"
56	"UXdcibBfrzmwrb8qhmEBNUHG9DFUkAwRzJIlFZjus7lu7XeXnzv9Tsp7UCRslWvk\n"
57	"p1m5Eiwsm7WtiezK3hxDaxeRgNCtSi9eNEjUR3lon0TLjULmu6pilzAUxQIDAQAB\n"
58	"MA0GCSqGSIb3DQEBCwUAA4IBAQA1eZGc/4V7z/E/6eG0hVkzoAZeuTcSP7WqBSx+\n"
59	"OP2yh0163UYjoa6nehmkKYQQ9PbYPZGzIcl+dBFyYzy6jcp0NdtzpWnTFrjl4rMq\n"
60	"akcQ1D0LTYjJXVP9G/vF/SvatOFeVTnQmLlLt/a8ZtRUINqejeZZPzH8ifzFW6tu\n"
61	"mlhTVIEKyPHpxClh5Y3ubw/mZYygekFTqMkTx3FwJxKU8J6rYGZxanWAODUIvCUo\n"
62	"Fxer1qC5Love3uWl3vXPLEZWZdORnExSRByzz2immBP2vX4zYZoeZRhTQ9ae1TIV\n"
63	"Dk02a/1AOJZdZReDbgXhlqaUx5pk/rzo4mDzvu5HSCeXmClz\n"
64	"-----END CERTIFICATE-----\n";
65
66	class Fuzzer_TLS_Server_Creds : public Botan::Credentials_Manager {
67	public:
68	Fuzzer_TLS_Server_Creds() {	1,128✔
69	Botan::DataSource_Memory cert_in(fixed_rsa_cert);	1,128✔
70	m_rsa_cert.reset(new Botan::X509_Certificate(cert_in));	1,128✔
71
72	Botan::DataSource_Memory key_in(fixed_rsa_key);	1,128✔
73	m_rsa_key.reset(Botan::PKCS8::load_key(key_in).release());	2,256✔
74	}	2,256✔
75
76	std::vector<Botan::X509_Certificate> cert_chain(	×
77	const std::vector<std::string>& algos,
78	const std::vector<Botan::AlgorithmIdentifier>& /signature_schemes/,
79	const std::string& /type/,
80	const std::string& /hostname/) override {
81	std::vector<Botan::X509_Certificate> v;	×
82
83	for(auto algo : algos) {	×
84	if(algo == "RSA") {	×
85	v.push_back(*m_rsa_cert);	×
86	break;	×
87	}
88	}	×
89
90	return v;	×
91	}	×
92
93	std::shared_ptr<Botan::Private_Key> private_key_for(const Botan::X509_Certificate& /cert/,	×
94	const std::string& type,
95	const std::string& /context/) override {
96	if(type == "RSA")	×
97	return m_rsa_key;	×
98	return nullptr;	×
99	}
100
101	std::string psk_identity_hint(const std::string&, const std::string&) override { return "psk_hint"; }	×
102
103	std::string psk_identity(const std::string&, const std::string&, const std::string&) override { return "psk_id"; }	×
104
105	Botan::SymmetricKey psk(const std::string&, const std::string&, const std::string&) override {	×
106	return Botan::SymmetricKey("AABBCCDDEEFF00112233445566778899");	×
107	}
108
109	private:
110	std::unique_ptr<Botan::X509_Certificate> m_rsa_cert;
111	std::shared_ptr<Botan::Private_Key> m_rsa_key;
112	};
113
114	class Fuzzer_TLS_Policy : public Botan::TLS::Policy {	1,128✔
115	public:
116	// TODO: Enable this once the TLS 1.3 server implementation is ready.
117	// Maybe even build individual fuzz targets for different versions.
118	bool allow_tls13() const override { return false; }	1,107✔
119
120	std::vector<uint16_t> ciphersuite_list(Botan::TLS::Protocol_Version) const override {	×
121	std::vector<uint16_t> ciphersuites;	×
122
123	for(auto&& suite : Botan::TLS::Ciphersuite::all_known_ciphersuites()) {	×
124	if(suite.valid())	×
125	ciphersuites.push_back(suite.ciphersuite_code());	×
126	}
127
128	return ciphersuites;	×
129	}	×
130	};
131
132	class Fuzzer_TLS_Server_Callbacks : public Botan::TLS::Callbacks {	1,128✔
133	public:
134	void tls_emit_data(std::span<const uint8_t>) override {	×
135	// discard
136	}	×
137
138	void tls_record_received(uint64_t, std::span<const uint8_t>) override {	×
139	// ignore peer data
140	}	×
141
142	void tls_alert(Botan::TLS::Alert) override {	×
143	// ignore alert
144	}	×
145
146	std::string tls_server_choose_app_protocol(const std::vector<std::string>& client_protos) override {	×
147	if(client_protos.size() > 1)	×
148	return client_protos[0];	×
149	else
150	return "fuzzy";	×
151	}
152
153	void tls_verify_cert_chain(const std::vector<Botan::X509_Certificate>& cert_chain,	×
154	const std::vector<std::optional<Botan::OCSP::Response>>& ocsp_responses,
155	const std::vector<Botan::Certificate_Store*>& trusted_roots,
156	Botan::Usage_Type usage,
157	std::string_view hostname,
158	const Botan::TLS::Policy& policy) override {
159	try {	×
160	// try to validate to exercise those code paths
161	Botan::TLS::Callbacks::tls_verify_cert_chain(	×
162	cert_chain, ocsp_responses, trusted_roots, usage, hostname, policy);
163	} catch(...) {	×
164	// ignore validation result
165	}	×
166	}	×
167	};
168
169	void fuzz(const uint8_t in[], size_t len) {	1,131✔
170	if(len <= 1)	1,131✔
171	return;	3✔
172
173	auto session_manager = std::make_shared<Botan::TLS::Session_Manager_Noop>();	1,128✔
174	auto policy = std::make_shared<Fuzzer_TLS_Policy>();	1,128✔
175	Botan::TLS::Server_Information info("server.name", 443);	1,128✔
176	auto creds = std::make_shared<Fuzzer_TLS_Server_Creds>();	1,128✔
177	auto callbacks = std::make_shared<Fuzzer_TLS_Server_Callbacks>();	1,128✔
178
179	const bool is_datagram = in[0] & 1;	1,128✔
180
181	Botan::TLS::Server server(callbacks, session_manager, creds, policy, fuzzer_rng_as_shared(), is_datagram);	6,768✔
182
183	try {	1,128✔
184	server.received_data(in + 1, len - 1);	1,128✔
185	} catch(std::exception& e) {}	1,105✔
186	}	5,640✔

randombit / botan / 5111374265

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