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sslscan.c
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sslscan.c
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/***************************************************************************
* sslscan - A SSL cipher scanning tool *
* Copyright 2007-2010 by Ian Ventura-Whiting ([email protected]) *
* Michael Boman ([email protected]) *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
* In addition, as a special exception, the copyright holders give *
* permission to link the code of portions of this program with the *
* OpenSSL library under certain conditions as described in each *
* individual source file, and distribute linked combinations *
* including the two. *
* You must obey the GNU General Public License in all respects *
* for all of the code used other than OpenSSL. If you modify *
* file(s) with this exception, you may extend this exception to your *
* version of the file(s), but you are not obligated to do so. If you *
* do not wish to do so, delete this exception statement from your *
* version. If you delete this exception statement from all source *
* files in the program, then also delete it here. *
***************************************************************************/
// Includes...
#include <string.h>
#if defined(WIN32)
#include <stdio.h>
#include <winsock2.h>
#include <windows.h>
#include <ws2tcpip.h>
#define snprintf(...) _snprintf(__VA_ARGS__)
DWORD dwError;
#else
#include <netdb.h>
#include <unistd.h>
#include <sys/socket.h>
#include <fcntl.h>
#endif
#include <sys/stat.h>
#include <time.h>
// OpenSSL Include files
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <openssl/pkcs12.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#if defined(WIN32)
#include <openssl/applink.c>
#endif
// Defines...
#define false 0
#define true 1
#define mode_help 0
#define mode_version 1
#define mode_single 2
#define mode_multiple 3
#define BUFFERSIZE 1024
#define ssl_all 0
#define ssl_v2 1
#define ssl_v3 2
#define tls_v1 3
// Macros
#define MAXSTRLEN(x) sizeof(x) - 1
#define FREEIFNOTNULL(x) if (x != NULL) free(x)
#if defined (WIN32)
// In MS World close(s) is called closesocket(s)
#define CLOSESOCKET(s) closesocket(s)
// In MS World snprintf() is called _snprintf()
#define snprintf(...) _snprintf(__VA_ARGS__)
#else
#define CLOSESOCKET(s) close(s)
#endif
// Version numbers and banners
#define SSLSCAN_VERSION "1.9.0-win"
const char *program_banner = " _\n"
" ___ ___| |___ ___ __ _ _ __\n"
" / __/ __| / __|/ __/ _` | '_ \\\n"
" \\__ \\__ \\ \\__ \\ (_| (_| | | | |\n"
" |___/___/_|___/\\___\\__,_|_| |_|\n\n"
" Version " SSLSCAN_VERSION "\n"
" http://www.titania.co.uk\n"
" Copyright 2010 Ian Ventura-Whiting / Michael Boman\n"
" Compiled against " OPENSSL_VERSION_TEXT "\n";
const char *program_version = "sslscan version " SSLSCAN_VERSION "\n" OPENSSL_VERSION_TEXT "\nhttp://www.titania.co.uk\nCopyright (C) Ian Ventura-Whiting 2009\n";
const char *xml_version = SSLSCAN_VERSION;
struct certificateOutput
{
long version;
long serial;
char signatureAlgorithm[BUFFERSIZE];
char issuer[BUFFERSIZE];
char *notValidBefore;
char *notValidAfter;
char subject[BUFFERSIZE];
char pkAlgorithm[BUFFERSIZE];
char *pk;
char pkType[BUFFERSIZE];
int pkError;
int pkBits;
int verifyError;
char verifyErrorString[BUFFERSIZE];
struct certificateExtensionOutput *firstCertExt;
};
struct certificateExtensionOutput
{
char *name;
int critical;
char *data;
struct certificateExtensionOutput *next;
};
struct renegotiationOutput
{
int supported;
int secure;
};
struct cipherOutput
{
char status[BUFFERSIZE];
char sslVersion[BUFFERSIZE];
char cipherName[BUFFERSIZE];
int cipherBits;
char cipherKx[BUFFERSIZE];
char cipherAu[BUFFERSIZE];
char cipherEnc[BUFFERSIZE];
char cipherMac[BUFFERSIZE];
char L4String[BUFFERSIZE];
};
struct sslCipher
{
// Cipher Properties...
const char *name;
char *version;
int bits;
char description[512];
SSL_METHOD *sslMethod;
struct sslCipher *next;
};
struct sslCheckOptions
{
// Program Options...
char host[512];
int port;
int noFailed;
int starttls;
int sslVersion;
int targets;
int pout;
int sslbugs;
int http;
int quiet;
// File Handles...
FILE *xmlOutput;
// TCP Connection Variables...
struct hostent *hostStruct;
struct sockaddr_in serverAddress;
// SSL Variables...
SSL_CTX *ctx;
struct sslCipher *ciphers;
char *clientCertsFile;
char *privateKeyFile;
char *privateKeyPassword;
// CA variables...
char *CAfile;
char *CApath;
};
#if defined (WIN32)
char *strndup(char *str, int n)
{
char *buffer;
char *startptr;
buffer = malloc(n + 1);
startptr = buffer;
while (n && *str)
{
*buffer = *str;
buffer++;
str++;
n--;
}
*buffer = '\0';
return (startptr);
}
#endif
#if defined (WIN32)
void setConnectionTimeout( int hSocket, DWORD timeout )
{
setsockopt(hSocket,SOL_SOCKET,SO_RCVTIMEO,(char*)&timeout,sizeof timeout);
setsockopt(hSocket,SOL_SOCKET,SO_SNDTIMEO,(char*)&timeout,sizeof timeout);
}
#else
void setConnectionTimeout( int hSocket, int timeout )
{
struct timeval tv;
tv.tv_sec = timeout/1000;
tv.tv_usec = 0;
setsockopt(hSocket,SOL_SOCKET,SO_RCVTIMEO,(char*)&tv, sizeof(tv));
setsockopt(hSocket,SOL_SOCKET,SO_SNDTIMEO,(char*)&tv, sizeof(tv));
}
#endif
int outputRenegotiaition( struct sslCheckOptions *options, struct renegotiationOutput *outputData)
{
if (options->quiet == false)
{
if (outputData->secure)
printf("Secure session renegotiations supported\n");
else if (outputData->supported)
printf("Insecure session renegotiations supported\n");
else
printf("Session renegotiation not supported\n");
}
if (options->xmlOutput != 0)
{
printf(" <renegotiation supported=\"%d\" secure=\"%d\" />\n",
outputData->supported,
outputData->secure);
}
return true;
}
int outputCertExtensions( struct sslCheckOptions *options, struct certificateExtensionOutput *outputData )
{
struct certificateExtensionOutput *outputDataPtr;
outputDataPtr = outputData;
while( outputDataPtr != NULL )
{
printf("DEBUG: name=%s\tcritical=%s\tdata=%s\n",
outputDataPtr->name,
outputDataPtr->critical ? "critical":"",
outputDataPtr->data);
if (options->quiet == false)
{
printf("%s: %s\n", outputData->name, outputData->critical ? "critical":"");
printf("%s\n", outputData->data);
}
if (options->pout)
{
}
outputDataPtr = outputDataPtr->next;
}
return true;
}
int outputCertExtensionsXML( struct sslCheckOptions *options, struct certificateExtensionOutput *outputData )
{
if (options->xmlOutput != 0)
{
while( outputData != NULL )
{
if ((outputData->name != NULL) && (outputData->data != NULL ))
{
fprintf(options->xmlOutput, " <extension name=\"%s\"%s><![CDATA[%s]]></extension>\n",
outputData->name,
outputData->critical ? " level=\"critical\"":"",
outputData->data);
fflush(options->xmlOutput);
}
outputData = outputData->next;
}
}
return true;
}
int outputCertificate( struct sslCheckOptions *options, struct certificateOutput *outputData )
{
if ( !outputData->pkError )
{
if ( options->quiet == false )
{
printf("\n SSL Certificate:\n");
printf(" Version: %l\n", outputData->version);
printf(" Serial Number: %u\n", outputData->serial);
printf(" Signature Algorithm: %s\n", outputData->signatureAlgorithm);
printf(" Issuer: %s\n", outputData->issuer);
printf(" Not valid before: %s\n", outputData->notValidBefore);
printf(" Not valid after: %s\n", outputData->notValidAfter);
printf(" Subject: %s\n", outputData->subject);
printf(" Public Key Algorithm: %s\n", outputData->pkAlgorithm);
printf(" %s Public Key: (%d bit):\n%s\n", outputData->pkAlgorithm, outputData->pkBits, outputData->pk);
outputCertExtensions(options, outputData->firstCertExt);
}
if ( options->xmlOutput != 0 )
{
fprintf(options->xmlOutput, " <certificate>\n");
fprintf(options->xmlOutput, " <version>%d</version>\n", outputData->version);
fprintf(options->xmlOutput, " <serial>%u</serial>\n", outputData->serial);
fprintf(options->xmlOutput, " <signature-algorithm>%s</signature-algorithm>\n", outputData->signatureAlgorithm);
fprintf(options->xmlOutput, " <issuer>%s</issuer>\n", outputData->issuer);
fprintf(options->xmlOutput, " <not-valid-before>%s</not-valid-before>\n", outputData->notValidBefore);
fprintf(options->xmlOutput, " <not-valid-after>%s</not-valid-after>\n", outputData->notValidAfter);
fprintf(options->xmlOutput, " <subject>%s</subject>\n", outputData->subject);
fprintf(options->xmlOutput, " <pk-algorithm>%s</pk-algorithm>\n", outputData->pkAlgorithm);
fprintf(options->xmlOutput, " <pk error=\"%s\" type=\"%s\" bits=\"%d\">\n%s </pk>\n",
outputData->pkError ? "true":"false",
outputData->pkType,
outputData->pkBits,
outputData->pk);
fprintf(options->xmlOutput, " <X509v3-Extensions>\n");
outputCertExtensionsXML(options, outputData->firstCertExt);
fprintf(options->xmlOutput, " </X509v3-Extensions>\n");
fprintf(options->xmlOutput, " <verify error=\"%s\">%s</verify>\n",
outputData->verifyError ? "true":"false",
outputData->verifyError ? outputData->verifyErrorString:"");
fprintf(options->xmlOutput, " </certificate>\n");
fflush(options->xmlOutput);
}
}
return true;
}
int outputCipher( struct sslCheckOptions *options, struct cipherOutput *outputData )
{
if ((strcmp(outputData->status, "accepted") == 0) || // Status is accepted
(options->noFailed == false) // Include failed ciphers
)
{
if (options->quiet == false)
{
printf(" %-8s %s %3d bits %s\n",
outputData->status,
outputData->sslVersion,
outputData->cipherBits,
outputData->cipherName
);
}
if (options->pout)
{
printf("|| %s || %s || %3d || %s ||\n",
outputData->status,
outputData->sslVersion,
outputData->cipherBits,
outputData->cipherName
);
}
if (options->xmlOutput != 0)
{
fprintf(options->xmlOutput, " <cipher status=\"%s\" sslversion=\"%s\" bits=\"%d\" cipher=\"%s\" kx=\"%s\" au=\"%s\" enc=\"%s\" mac=\"%s\" />\n",
outputData->status,
outputData->sslVersion,
outputData->cipherBits,
outputData->cipherName,
outputData->cipherKx,
outputData->cipherAu,
outputData->cipherEnc,
outputData->cipherMac);
fflush(options->xmlOutput);
}
}
return true;
}
int outputPreferedCipher( struct sslCheckOptions *options, struct cipherOutput *outputData )
{
if (strcmp(outputData->status, "accepted") == 0)
{
if (options->quiet == false)
{
printf(" %s %3d bits %s\n",
outputData->sslVersion,
outputData->cipherBits,
outputData->cipherName
);
}
if (options->pout)
{
printf("|| %s || %3d || %s ||\n",
outputData->sslVersion,
outputData->cipherBits,
outputData->cipherName
);
}
if (options->xmlOutput != 0)
{
fprintf(options->xmlOutput, " <defaultcipher sslversion=\"%s\" bits=\"%d\" cipher=\"%s\" kx=\"%s\" au=\"%s\" enc=\"%s\" mac=\"%s\" />\n",
outputData->sslVersion,
outputData->cipherBits,
outputData->cipherName,
outputData->cipherKx,
outputData->cipherAu,
outputData->cipherEnc,
outputData->cipherMac);
fflush(options->xmlOutput);
}
}
return true;
}
int freeCertExtOutput( struct certificateExtensionOutput *certExtOut )
{
struct certificateExtensionOutput *certExtOutPtr;
while (certExtOut != 0)
{
certExtOutPtr = certExtOut->next;
FREEIFNOTNULL(certExtOut->name);
FREEIFNOTNULL(certExtOut->data);
FREEIFNOTNULL(certExtOut);
certExtOut = certExtOutPtr;
}
return true;
}
struct certificateOutput * newCertOutput( void )
{
struct certificateOutput *myCertOutput;
myCertOutput = calloc(1,sizeof( struct certificateOutput));
if (myCertOutput != NULL)
{
// Initialize the variables
myCertOutput->notValidAfter = NULL;
myCertOutput->notValidBefore = NULL;
myCertOutput->pk = NULL;
myCertOutput->firstCertExt = NULL;
}
return( myCertOutput );
}
struct cipherOutput * newCipherOutput( void )
{
struct cipherOutput *myCipherOutput;
myCipherOutput = calloc(1,sizeof(struct cipherOutput));
return( myCipherOutput );
}
struct renegotiationOutput * newRenegotiationOutput( void )
{
struct renegotiationOutput *myRenOut;
myRenOut = calloc(1,sizeof(struct renegotiationOutput));
return( myRenOut );
}
int freeRenegotiationOutput( struct renegotiationOutput *myRenOut )
{
FREEIFNOTNULL(myRenOut);
return true;
}
int freeCipherOutput( struct cipherOutput *myCipherOutput )
{
FREEIFNOTNULL(myCipherOutput);
return true;
}
struct certificateExtensionOutput * newCertExtOutput( void )
{
struct certificateExtensionOutput *myCertExtOutput;
myCertExtOutput = calloc(1,sizeof( struct certificateExtensionOutput));
if (myCertExtOutput != NULL)
{
// Initialize the variables
myCertExtOutput->next = NULL;
}
return( myCertExtOutput );
}
int freeCertOutput( struct certificateOutput *certOut )
{
FREEIFNOTNULL(certOut->notValidBefore);
FREEIFNOTNULL(certOut->notValidAfter);
FREEIFNOTNULL(certOut->pk);
// if Certificate Extension
if( certOut->firstCertExt != NULL )
freeCertExtOutput( certOut->firstCertExt );
return true;
}
int parseDescription( char *description, struct cipherOutput *dest )
{
sscanf(description, "%*s %*s Kx=%s Au=%s Enc=%s Mac=%s",
dest->cipherKx,
dest->cipherAu,
dest->cipherEnc,
dest->cipherMac);
return true;
}
void setBlocking(SSL * ssl)
{
#if defined (WIN32)
int fd, res;
u_long iMode = 0;
if( (fd = SSL_get_rfd(ssl)) )
{
res = ioctlsocket(fd, FIONBIO, &iMode);
if( res )
{
// Something went wrong...
dwError = WSAGetLastError();
if (dwError != 0) {
fprintf(stderr, "ERROR in set_blocking(): %ld.\n", dwError);
}
}
}
#else
int fd, flags;
/* SSL_get_rfd returns -1 on error */
if( (fd = SSL_get_rfd(ssl)) )
{
flags = fcntl(fd, F_GETFL);
flags &= ~O_NONBLOCK;
fcntl(fd, F_SETFL, flags);
}
/* SSL_get_wfd returns -1 on error */
if( (fd = SSL_get_wfd(ssl)) )
{
flags = fcntl(fd, F_GETFL);
flags &= ~O_NONBLOCK;
fcntl(fd, F_SETFL, flags);
}
#endif
}
// Adds Ciphers to the Cipher List structure
int populateCipherList(struct sslCheckOptions *options, SSL_METHOD *sslMethod)
{
// Variables...
int returnCode = true;
struct sslCipher *sslCipherPointer;
int tempInt;
int loop;
STACK_OF(SSL_CIPHER) *cipherList;
SSL *ssl = NULL;
// Setup Context Object...
options->ctx = SSL_CTX_new(sslMethod);
if (options->ctx != NULL)
{
SSL_CTX_set_cipher_list(options->ctx, "ALL:COMPLEMENTOFALL");
// Create new SSL object
ssl = SSL_new(options->ctx);
if (ssl != NULL)
{
// Get List of Ciphers
cipherList = SSL_get_ciphers(ssl);
// Create Cipher Struct Entries...
for (loop = 0; loop < sk_SSL_CIPHER_num(cipherList); loop++)
{
// Create Structure...
if (options->ciphers == 0)
{
options->ciphers = calloc(1,sizeof(struct sslCipher));
sslCipherPointer = options->ciphers;
}
else
{
sslCipherPointer = options->ciphers;
while (sslCipherPointer->next != 0)
sslCipherPointer = sslCipherPointer->next;
sslCipherPointer->next = calloc(1,sizeof(struct sslCipher));
sslCipherPointer = sslCipherPointer->next;
}
// Add cipher information...
sslCipherPointer->sslMethod = sslMethod;
sslCipherPointer->name = SSL_CIPHER_get_name(sk_SSL_CIPHER_value(cipherList, loop));
sslCipherPointer->version = SSL_CIPHER_get_version(sk_SSL_CIPHER_value(cipherList, loop));
SSL_CIPHER_description(sk_SSL_CIPHER_value(cipherList, loop), sslCipherPointer->description, MAXSTRLEN(sslCipherPointer->description));
sslCipherPointer->bits = SSL_CIPHER_get_bits(sk_SSL_CIPHER_value(cipherList, loop), &tempInt);
}
// Free SSL object
SSL_free(ssl);
}
else
{
returnCode = false;
fprintf(stderr, "ERROR: Could not create SSL object.\n");
}
// Free CTX Object
SSL_CTX_free(options->ctx);
}
// Error Creating Context Object
else
{
returnCode = false;
fprintf(stderr, "ERROR: Could not create CTX object.\n");
}
return returnCode;
}
// File Exists
int fileExists(char *fileName)
{
// Variables...
struct stat fileStats;
if (stat(fileName, &fileStats) == 0)
return true;
else
return false;
}
// Read a line from the input...
void readLine(FILE *input, char *lineFromFile, int maxSize)
{
// Variables...
int stripPointer;
// Read line from file...
fgets(lineFromFile, maxSize, input);
// Clear the end-of-line stuff...
stripPointer = strlen(lineFromFile) -1;
while ((lineFromFile[stripPointer] == '\r') || (lineFromFile[stripPointer] == '\n') || (lineFromFile[stripPointer] == ' '))
{
lineFromFile[stripPointer] = 0;
stripPointer--;
}
}
// Create a TCP socket
int tcpConnect(struct sslCheckOptions *options)
{
// Variables...
int socketDescriptor;
char buffer[BUFFERSIZE];
struct sockaddr_in localAddress;
int status;
// Create Socket
socketDescriptor = socket(AF_INET, SOCK_STREAM, 0);
if(socketDescriptor < 0)
{
fprintf(stderr, "ERROR: Could not open a socket.\n");
return 0;
}
// Configure Local Port
localAddress.sin_family = AF_INET;
localAddress.sin_addr.s_addr = htonl(INADDR_ANY);
localAddress.sin_port = htons(0);
status = bind(socketDescriptor, (struct sockaddr *) &localAddress, sizeof(localAddress));
if(status < 0)
{
fprintf(stderr, "ERROR: Could not bind to port.\n");
return 0;
}
// Connect
status = connect(socketDescriptor, (struct sockaddr *) &options->serverAddress, sizeof(options->serverAddress));
if(status < 0)
{
fprintf(stderr, "ERROR: Could not open a connection to host %s on port %d.\n", options->host, options->port);
return 0;
}
// If STARTTLS is required...
if (options->starttls == true)
{
memset(buffer, 0, BUFFERSIZE);
recv(socketDescriptor, buffer, BUFFERSIZE - 1, 0);
if (strncmp(buffer, "220", 3) != 0)
{
CLOSESOCKET(socketDescriptor);
fprintf(stderr, "ERROR: The host %s on port %d did not appear to be an SMTP service.\n", options->host, options->port);
return 0;
}
send(socketDescriptor, "EHLO titania.co.uk\r\n", 20, 0);
memset(buffer, 0, BUFFERSIZE);
recv(socketDescriptor, buffer, BUFFERSIZE - 1, 0);
if (strncmp(buffer, "250", 3) != 0)
{
CLOSESOCKET(socketDescriptor);
fprintf(stderr, "ERROR: The SMTP service on %s port %d did not respond with status 250 to our HELO.\n", options->host, options->port);
return 0;
}
send(socketDescriptor, "STARTTLS\r\n", 10, 0);
memset(buffer, 0, BUFFERSIZE);
recv(socketDescriptor, buffer, BUFFERSIZE - 1, 0);
if (strncmp(buffer, "220", 3) != 0)
{
CLOSESOCKET(socketDescriptor);
fprintf(stderr, "ERROR: The SMTP service on %s port %d did not appear to support STARTTLS.\n", options->host, options->port);
return 0;
}
}
setConnectionTimeout(socketDescriptor, 30000);
// Return
return socketDescriptor;
}
// Private Key Password Callback...
static int password_callback(char *buf, int size, int rwflag, void *userdata)
{
strncpy(buf, (char *)userdata, size);
buf[strlen(userdata)] = 0;
return strlen(userdata);
}
// Load client certificates/private keys...
int loadCerts(struct sslCheckOptions *options)
{
// Variables...
int status = 1;
PKCS12 *pk12 = NULL;
FILE *pk12File = NULL;
X509 *cert = NULL;
EVP_PKEY *pkey = NULL;
STACK_OF(X509) *ca = NULL;
// Configure PKey password...
if (options->privateKeyPassword != 0)
{
SSL_CTX_set_default_passwd_cb_userdata(options->ctx, (void *)options->privateKeyPassword);
SSL_CTX_set_default_passwd_cb(options->ctx, password_callback);
}
// Seperate Certs and PKey Files...
if ((options->clientCertsFile != 0) && (options->privateKeyFile != 0))
{
// Load Cert...
if (!SSL_CTX_use_certificate_file(options->ctx, options->clientCertsFile, SSL_FILETYPE_PEM))
{
if (!SSL_CTX_use_certificate_file(options->ctx, options->clientCertsFile, SSL_FILETYPE_ASN1))
{
if (!SSL_CTX_use_certificate_chain_file(options->ctx, options->clientCertsFile))
{
fprintf(stderr, "Could not configure certificate(s).\n");
status = 0;
}
}
}
// Load PKey...
if (status != 0)
{
if (!SSL_CTX_use_PrivateKey_file(options->ctx, options->privateKeyFile, SSL_FILETYPE_PEM))
{
if (!SSL_CTX_use_PrivateKey_file(options->ctx, options->privateKeyFile, SSL_FILETYPE_ASN1))
{
if (!SSL_CTX_use_RSAPrivateKey_file(options->ctx, options->privateKeyFile, SSL_FILETYPE_PEM))
{
if (!SSL_CTX_use_RSAPrivateKey_file(options->ctx, options->privateKeyFile, SSL_FILETYPE_ASN1))
{
fprintf(stderr, "Could not configure private key.\n");
status = 0;
}
}
}
}
}
}
// PKCS Cert and PKey File...
else if (options->privateKeyFile != 0)
{
pk12File = fopen(options->privateKeyFile, "rb");
if (pk12File != NULL)
{
pk12 = d2i_PKCS12_fp(pk12File, NULL);
if (!pk12)
{
status = 0;
fprintf(stderr, "Could not read PKCS#12 file.\n");
}
else
{
if (!PKCS12_parse(pk12, options->privateKeyPassword, &pkey, &cert, &ca))
{
status = 0;
fprintf(stderr, "Error parsing PKCS#12. Are you sure that password was correct?\n");
}
else
{
if (!SSL_CTX_use_certificate(options->ctx, cert))
{
status = 0;
fprintf(stderr, "Could not configure certificate.\n");
}
if (!SSL_CTX_use_PrivateKey(options->ctx, pkey))
{
status = 0;
fprintf(stderr, "Could not configure private key.\n");
}
}
PKCS12_free(pk12);
}
fclose(pk12File);
}
else
{
fprintf(stderr, "Could not open PKCS#12 file.\n");
status = 0;
}
}
// Check Cert/Key...
if (status != 0)
{
if (!SSL_CTX_check_private_key(options->ctx))
{
fprintf(stderr, "Private key does not match certificate.\n");
return false;
}
else
return true;
}
else
return false;
}
// Test a cipher...
int testCipher(struct sslCheckOptions *options, struct sslCipher *sslCipherPointer)
{
// Variables...
int cipherStatus;
int status = true;
int socketDescriptor = 0;
SSL *ssl = NULL;
BIO *cipherConnectionBio;
BIO *stdoutBIO = NULL;
char requestBuffer[BUFFERSIZE];
char buffer[50];
int resultSize = 0;
struct cipherOutput *myCipherOutput = newCipherOutput();
// Create request buffer...
memset(requestBuffer, 0, BUFFERSIZE);
snprintf(requestBuffer, MAXSTRLEN(requestBuffer), "GET / HTTP/1.0\r\nUser-Agent: SSLScan/%s\r\nHost: %s\r\n\r\n", SSLSCAN_VERSION, options->host);
//snprintf(requestBuffer, MAXSTRLEN(requestBuffer), "GET / HTTP/1.0\r\nUser-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6\r\nHost: %s\r\n\r\n", options->host);
// Connect to host
socketDescriptor = tcpConnect(options);
if (socketDescriptor != 0)
{
if (SSL_CTX_set_cipher_list(options->ctx, sslCipherPointer->name) != 0)
{
// Create SSL object...
ssl = SSL_new(options->ctx);
if (ssl != NULL)
{
// Connect socket and BIO
cipherConnectionBio = BIO_new_socket(socketDescriptor, BIO_NOCLOSE);
// Connect SSL and BIO
SSL_set_bio(ssl, cipherConnectionBio, cipherConnectionBio);
// Connect SSL over socket
cipherStatus = SSL_connect(ssl);
// Show Cipher Status
if (!((options->noFailed == true) && (cipherStatus != 1)))
{
if (cipherStatus == 1)
{
snprintf(myCipherOutput->status, MAXSTRLEN(myCipherOutput->status), "accepted");
if (options->http == true)
{
// Stdout BIO...
stdoutBIO = BIO_new(BIO_s_file());
BIO_set_fp(stdoutBIO, stdout, BIO_NOCLOSE);
// HTTP Get...
SSL_write(ssl, requestBuffer, sizeof(requestBuffer));
memset(buffer ,0 , 50);
resultSize = SSL_read(ssl, buffer, 49);
if (resultSize > 9)
{
int loop = 0;
for (loop = 9; (loop < 49) && (buffer[loop] != 0) && (buffer[loop] != '\r') && (buffer[loop] != '\n'); loop++)
{ }
buffer[loop] = 0;
// Output HTTP code...
snprintf(myCipherOutput->L4String, MAXSTRLEN(myCipherOutput->L4String), "%s", buffer + 9);
}
else
{
snprintf(myCipherOutput->L4String, MAXSTRLEN(myCipherOutput->L4String), "");
}
}
}
else if (cipherStatus == 0)
{
snprintf(myCipherOutput->status, MAXSTRLEN(myCipherOutput->status), "rejected");
if (options->http == true)
{
snprintf(myCipherOutput->L4String, MAXSTRLEN(myCipherOutput->L4String), "N/A");
}
}
else
{
snprintf(myCipherOutput->status, MAXSTRLEN(myCipherOutput->status), "failed");
if (options->http == true)
{
snprintf(myCipherOutput->L4String, MAXSTRLEN(myCipherOutput->L4String), "N/A");
}
}
if (sslCipherPointer->sslMethod == SSLv2_client_method())
{
snprintf(myCipherOutput->sslVersion, MAXSTRLEN(myCipherOutput->sslVersion), "SSLv2");
}
else if (sslCipherPointer->sslMethod == SSLv3_client_method())
{
snprintf(myCipherOutput->sslVersion, MAXSTRLEN(myCipherOutput->sslVersion), "SSLv3");
}
else if (sslCipherPointer->sslMethod == TLSv1_client_method())
{
snprintf(myCipherOutput->sslVersion, MAXSTRLEN(myCipherOutput->sslVersion), "TLSv1");
}
else
{
snprintf(myCipherOutput->sslVersion, MAXSTRLEN(myCipherOutput->sslVersion), "Unknown");
}
myCipherOutput->cipherBits = sslCipherPointer->bits;
parseDescription(sslCipherPointer->description, myCipherOutput);
snprintf(myCipherOutput->cipherName, MAXSTRLEN(myCipherOutput->cipherName), "%s", sslCipherPointer->name);
}
// Disconnect SSL over socket
if (cipherStatus == 1)
SSL_shutdown(ssl);
// Free SSL object
SSL_free(ssl);
}
else
{
status = false;
fprintf(stderr, "ERROR: Could create SSL object.\n");
}
}
else
{
status = false;
fprintf(stderr, "ERROR: Could set cipher %s.\n", sslCipherPointer->name);
}
// Disconnect from host
CLOSESOCKET(socketDescriptor);
}
// Could not connect
else