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Work around triptohell's self-signed certs, using the same method as on windows.

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git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5087 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
Spoike 2017-04-09 05:43:08 +00:00
parent c46f6a3a53
commit 9efb2c5c0e
1 changed files with 67 additions and 3 deletions
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70
engine/common/net_ssl_gnutls.c
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@ -161,8 +161,8 @@ static int (VARGS *qgnutls_certificate_verify_peers2)(gnutls_session_t session,
static int (VARGS *qgnutls_x509_crt_check_hostname)(gnutls_x509_crt_t cert, const char * hostname); static int (VARGS *qgnutls_x509_crt_check_hostname)(gnutls_x509_crt_t cert, const char * hostname);
static int (VARGS *qgnutls_x509_crt_init)(gnutls_x509_crt_t * cert); static int (VARGS *qgnutls_x509_crt_init)(gnutls_x509_crt_t * cert);
static int (VARGS *qgnutls_x509_crt_import)(gnutls_x509_crt_t cert, const gnutls_datum_t *data, gnutls_x509_crt_fmt_t format); static int (VARGS *qgnutls_x509_crt_import)(gnutls_x509_crt_t cert, const gnutls_datum_t *data, gnutls_x509_crt_fmt_t format);
static const gnutls_datum_t *(VARGS *qgnutls_certificate_get_peers)(gnutls_session_t session, unsigned int * list_size);
#endif #endif
static const gnutls_datum_t *(VARGS *qgnutls_certificate_get_peers)(gnutls_session_t session, unsigned int * list_size);
static gnutls_certificate_type_t (VARGS *qgnutls_certificate_type_get)(gnutls_session_t session); static gnutls_certificate_type_t (VARGS *qgnutls_certificate_type_get)(gnutls_session_t session);
static void (VARGS *qgnutls_free)(void * ptr); static void (VARGS *qgnutls_free)(void * ptr);
static int (VARGS *qgnutls_server_name_set)(gnutls_session_t session, gnutls_server_name_type_t type, const void * name, size_t name_length); static int (VARGS *qgnutls_server_name_set)(gnutls_session_t session, gnutls_server_name_type_t type, const void * name, size_t name_length);
@ -258,9 +258,9 @@ static qboolean Init_GNUTLS(void)
{(void**)&qgnutls_certificate_verify_peers2, "gnutls_certificate_verify_peers2"}, {(void**)&qgnutls_certificate_verify_peers2, "gnutls_certificate_verify_peers2"},
{(void**)&qgnutls_x509_crt_init, "gnutls_x509_crt_init"}, {(void**)&qgnutls_x509_crt_init, "gnutls_x509_crt_init"},
{(void**)&qgnutls_x509_crt_import, "gnutls_x509_crt_import"}, {(void**)&qgnutls_x509_crt_import, "gnutls_x509_crt_import"},
{(void**)&qgnutls_certificate_get_peers, "gnutls_certificate_get_peers"},
{(void**)&qgnutls_x509_crt_check_hostname, "gnutls_x509_crt_check_hostname"}, {(void**)&qgnutls_x509_crt_check_hostname, "gnutls_x509_crt_check_hostname"},
#endif #endif
{(void**)&qgnutls_certificate_get_peers, "gnutls_certificate_get_peers"},
{(void**)&qgnutls_certificate_type_get, "gnutls_certificate_type_get"}, {(void**)&qgnutls_certificate_type_get, "gnutls_certificate_type_get"},
{(void**)&qgnutls_free, "gnutls_free"}, {(void**)&qgnutls_free, "gnutls_free"},
{(void**)&qgnutls_server_name_set, "gnutls_server_name_set"}, {(void**)&qgnutls_server_name_set, "gnutls_server_name_set"},
@ -324,11 +324,70 @@ static qboolean QDECL SSL_Close(vfsfile_t *vfs)
file->stream = NULL; file->stream = NULL;
return true; return true;
} }
static const qbyte fte_triptohell_certdata[917] = "\x30\x82\x03\x91\x30\x82\x02\x79\xa0\x03\x02\x01\x02\x02\x09\x00\xb5\x71\x47\x8d\x5e\x66\xf1\xd9\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x0b\x05\x00\x30\x5f\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x11\x30\x0f\x06\x03\x55\x04\x07\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x0c\x30\x0a\x06\x03\x55\x04\x0a\x0c\x03\x46\x54\x45\x31\x1c\x30\x1a\x06\x03\x55\x04\x03\x0c\x13\x66\x74\x65\x2e\x74\x72\x69\x70\x74\x6f\x68\x65\x6c\x6c\x2e\x69\x6e\x66\x6f\x30\x1e\x17\x0d\x31\x34\x31\x32\x32\x35\x30\x30\x35\x38\x31\x34\x5a\x17\x0d\x31\x37\x30\x33\x30\x34\x30\x30\x35\x38\x31\x34\x5a\x30\x5f\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x11\x30\x0f\x06\x03\x55\x04\x07\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x0c\x30\x0a\x06\x03\x55\x04\x0a\x0c\x03\x46\x54\x45\x31\x1c\x30\x1a\x06\x03\x55\x04\x03\x0c\x13\x66\x74\x65\x2e\x74\x72\x69\x70\x74\x6f\x68\x65\x6c\x6c\x2e\x69\x6e\x66\x6f\x30\x82\x01\x22\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x01\x05\x00\x03\x82\x01\x0f\x00\x30\x82\x01\x0a\x02\x82\x01\x01\x00\xdd\xb8\x7c\x69\x3d\x63\x95\xe3\x88\x15\xfd\xad\x93\x5e\x6b\x97\xfb\x74\xba\x1f\x83\x33\xe5\x8a\x8d\x8f\xb0\xbf\xf9\xd3\xa1\x2c\x65\x53\xa7\xef\xd3\x0f\xdc\x03\x60\x0a\x40\xef\xa8\xef\x3f\xb3\xd9\x8d\x31\x39\x12\x8a\xd8\x0e\x24\x8f\xe5\x58\x26\x86\x4c\x76\x6c\x59\x9a\xab\xea\x1c\x3d\xfb\x62\x62\xad\xaf\xd6\x00\x33\x76\x2d\xbb\xeb\xe8\xec\xb4\x76\x4f\xb0\xbe\xcf\xf0\x46\x94\x40\x02\x99\xd4\xb2\x71\x71\xd6\xf5\x1f\xc3\x4f\x1e\x1e\xb4\x0d\x82\x49\xc4\xa2\xdc\xae\x6f\x4e\x3a\xf9\x0e\xdd\xf4\xd2\x53\xe3\xe7\x7d\x58\x79\xf4\xce\x1f\x6c\xac\x81\x8c\x8c\xe1\x03\x5b\x22\x56\x92\x19\x4f\x74\xc0\x36\x41\xac\x1b\xfa\x9e\xf7\x2a\x0f\xd6\x4b\xcc\x9a\xca\x67\x87\xb7\x95\xdf\xb7\xd4\x7d\x8c\xcc\xa9\x25\xde\xdd\x8c\x1b\xd7\x32\xf2\x84\x25\x46\x7b\x10\x55\xf9\x80\xfd\x5d\xad\xab\xf9\x4c\x1f\xc0\xa5\xd1\x3f\x01\x86\x4d\xfa\x57\xab\x7a\x6d\xec\xf1\xdb\xf4\xad\xf2\x33\xcd\xa0\xed\xfe\x1b\x27\x55\x56\xba\x8c\x47\x70\x16\xd5\x75\x17\x8e\x80\xaa\x49\x5e\x93\x83\x1d\x6f\x1f\x2c\xf7\xa7\x64\xe6\x2e\x88\x8e\xff\x70\x5a\x41\x52\xae\x93\x02\x03\x01\x00\x01\xa3\x50\x30\x4e\x30\x1d\x06\x03\x55\x1d\x0e\x04\x16\x04\x14\x4e\x76\x4a\xce\x7b\x45\x14\x39\xeb\x9c\x28\x56\xb5\x7b\x8a\x18\x6f\x22\x17\x82\x30\x1f\x06\x03\x55\x1d\x23\x04\x18\x30\x16\x80\x14\x4e\x76\x4a\xce\x7b\x45\x14\x39\xeb\x9c\x28\x56\xb5\x7b\x8a\x18\x6f\x22\x17\x82\x30\x0c\x06\x03\x55\x1d\x13\x04\x05\x30\x03\x01\x01\xff\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x0b\x05\x00\x03\x82\x01\x01\x00\x48\x22\x65\xed\x2e\xc5\xed\xbb\xe9\x40\x6c\x80\xc4\x63\x19\xd1\x00\xb4\x30\x34\x17\x7c\x7c\xbd\x1b\xc5\xa9\x43\x0c\x92\x6e\xd6\x2d\x11\x6c\x0d\xa6\xda\x30\xe9\xf7\x46\x7b\x01\xe4\x53\x23\xae\x88\xd1\xf2\xed\xca\x84\x06\x19\x97\xb9\x06\xfb\xda\xec\x72\x2d\x15\x20\xd2\x8f\x66\xad\xb5\xdd\x4b\x4f\xdf\x7e\xaf\xa3\x6c\x7f\x53\x32\x8f\xe2\x19\x5c\x44\x98\x86\x31\xee\xb4\x03\xe7\x27\xa1\x83\xab\xc3\xce\xb4\x9a\x01\xbe\x8c\x64\x2e\x2b\xe3\x4e\x55\xdf\x95\xeb\x16\x87\xbd\xfa\x11\xa2\x3e\x38\x92\x97\x36\xe9\x65\x60\xf3\xac\x68\x44\xb3\x51\x54\x3a\x42\xa8\x98\x9b\xee\x1b\x9e\x79\x6a\xaf\xc0\xbe\x41\xc4\xb1\x96\x42\xd9\x94\xef\x49\x5b\xbe\x2d\x04\xb9\xfb\x92\xbb\xdc\x0e\x29\xfd\xee\xa9\x68\x09\xf9\x9f\x69\x8b\x3d\xe1\x4b\xee\x24\xf9\xfe\x02\x3a\x0a\xb8\xcd\x6c\x07\x43\xa9\x4a\xe7\x03\x34\x2e\x72\xa7\x81\xaa\x40\xa9\x98\x5d\x97\xee\x2a\x99\xc6\x8f\xe8\x6f\x98\xa2\x85\xc9\x0d\x04\x19\x43\x6a\xd3\xc7\x15\x4c\x4b\xbc\xa5\xb8\x9f\x38\xf3\x43\x83\x0c\xef\x97\x6e\xa6\x20\xde\xc5\xd3\x1e\x3e\x5d\xcd\x58\x3d\x5c\x55\x7a\x90\x94";
static const qbyte triptohell_certdata[933] = "\x30\x82\x03\xa1\x30\x82\x02\x89\xa0\x03\x02\x01\x02\x02\x09\x00\xea\xb7\x13\xcf\x55\xe5\xe8\x8c\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x0b\x05\x00\x30\x67\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x11\x30\x0f\x06\x03\x55\x04\x07\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x18\x30\x16\x06\x03\x55\x04\x0a\x0c\x0f\x74\x72\x69\x70\x74\x6f\x68\x65\x6c\x6c\x2e\x69\x6e\x66\x6f\x31\x18\x30\x16\x06\x03\x55\x04\x03\x0c\x0f\x74\x72\x69\x70\x74\x6f\x68\x65\x6c\x6c\x2e\x69\x6e\x66\x6f\x30\x1e\x17\x0d\x31\x34\x31\x32\x32\x35\x30\x30\x35\x38\x33\x37\x5a\x17\x0d\x31\x37\x30\x33\x30\x34\x30\x30\x35\x38\x33\x37\x5a\x30\x67\x31\x0b\x30\x09\x06\x03\x55\x04\x06\x13\x02\x55\x53\x31\x11\x30\x0f\x06\x03\x55\x04\x08\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x11\x30\x0f\x06\x03\x55\x04\x07\x0c\x08\x4e\x65\x77\x20\x59\x6f\x72\x6b\x31\x18\x30\x16\x06\x03\x55\x04\x0a\x0c\x0f\x74\x72\x69\x70\x74\x6f\x68\x65\x6c\x6c\x2e\x69\x6e\x66\x6f\x31\x18\x30\x16\x06\x03\x55\x04\x03\x0c\x0f\x74\x72\x69\x70\x74\x6f\x68\x65\x6c\x6c\x2e\x69\x6e\x66\x6f\x30\x82\x01\x22\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x01\x05\x00\x03\x82\x01\x0f\x00\x30\x82\x01\x0a\x02\x82\x01\x01\x00\xd8\x77\x62\xf6\x74\xa7\x75\xde\xda\x09\xae\x9e\x76\x7a\xc6\x2a\xcf\x9a\xbe\xc6\xb9\x6d\xe2\xca\x0f\x2d\x95\xb8\x89\x93\xf7\x50\x64\x92\x7d\x95\x34\xe4\x6e\xef\x52\x56\xef\x13\x9a\x3a\xae\x84\x5b\x57\x82\x04\x86\x74\xbd\x4e\x38\x32\x56\x00\xd6\x34\x9c\x23\xd6\x81\x8e\x29\x77\x45\x61\x20\xdf\x28\xf8\xe5\x61\x83\xec\xe6\xa0\x1a\x75\xa8\x3b\x53\x6f\xc4\x09\x61\x66\x3a\xf0\x81\xbf\x2c\xf5\x8e\xf1\xe2\x35\xe4\x24\x7f\x16\xcc\xce\x60\xa2\x42\x6e\xc2\x3a\x29\x75\x6c\x79\xb0\x99\x9c\xe2\xfe\x27\x32\xb6\xf7\x0d\x71\xfd\x62\x9d\x54\x7c\x40\xb2\xf5\xa0\xa4\x25\x31\x8d\x65\xfd\x3f\x3b\x9b\x7e\x84\x74\x17\x3c\x1f\xec\x50\xcf\x75\xb8\x5c\xca\xfc\x0f\xe8\x47\xd8\x64\xec\x5f\x6c\x45\x9a\x55\x49\x97\x3f\xcb\x49\x34\x71\x0a\x12\x13\xbc\x3d\x53\x81\x17\x9a\x92\x44\x91\x07\xc2\xef\x6d\x64\x86\x5d\xfd\x67\xd5\x99\x38\x95\x46\x74\x6d\xb6\xbf\x29\xc9\x5b\xac\xb1\x46\xd6\x9e\x57\x5c\x7b\x24\x91\xf4\x7c\xe4\x01\x31\x8c\xec\x79\x94\xb7\x3f\xd2\x93\x6d\xe2\x69\xbe\x61\x44\x2e\x8f\x1a\xdc\xa8\x97\xf5\x81\x8e\x0c\xe1\x00\xf2\x71\x51\xf3\x02\x03\x01\x00\x01\xa3\x50\x30\x4e\x30\x1d\x06\x03\x55\x1d\x0e\x04\x16\x04\x14\x18\xb2\x6b\x63\xcc\x17\x54\xf6\xf0\xb6\x9e\x62\xa4\x35\xcf\x47\x74\x13\x29\xbf\x30\x1f\x06\x03\x55\x1d\x23\x04\x18\x30\x16\x80\x14\x18\xb2\x6b\x63\xcc\x17\x54\xf6\xf0\xb6\x9e\x62\xa4\x35\xcf\x47\x74\x13\x29\xbf\x30\x0c\x06\x03\x55\x1d\x13\x04\x05\x30\x03\x01\x01\xff\x30\x0d\x06\x09\x2a\x86\x48\x86\xf7\x0d\x01\x01\x0b\x05\x00\x03\x82\x01\x01\x00\x7f\x24\x18\x8a\x79\xee\xf9\xeb\xed\x29\x1e\x21\x15\x8a\x53\xc9\xb7\xec\x30\xc4\x85\x9f\x45\x85\x26\x36\xb7\x07\xf3\xf1\xff\x3b\x89\x05\x0a\xd4\x30\x68\x31\x68\x33\xdd\xf6\x58\xa3\x85\x9f\x49\x50\x76\x9a\xc5\x79\x13\xe1\x4d\x67\x0c\xf3\x92\xf0\x1d\x02\x1f\xc4\x5c\xd4\xa1\x0c\x57\xdf\x46\x84\x43\x9f\xb0\xe2\x91\x62\xa8\xe0\x86\x0d\x47\xe1\xd9\x60\x01\xc4\xe0\xda\x6f\x06\x0a\xad\x38\xf3\x66\x68\xc5\xe2\x66\x3e\x47\x83\x65\x64\xcd\xff\xf3\xbb\xa7\xfa\x23\xf1\x82\x5e\x06\x6a\x91\x37\x51\xcd\xb9\x95\x20\x89\xff\xa1\x54\xb2\x76\xcf\x8e\xe1\xcd\x13\x93\x13\xd1\xda\x0d\x0d\xbc\x0f\xd5\x11\x26\xd6\xaf\x60\x0f\x4d\x8a\x4f\x28\xee\x6c\xf1\x99\xdc\xed\x16\xdc\x87\x26\xfd\x23\x8a\xb8\xb0\x20\x0e\xe2\x32\xf5\x8e\xb0\x65\x98\x13\xb8\x4b\x39\x7c\x8c\x98\xa2\x29\x75\x48\x3a\x89\xf9\x61\x77\x6c\x2d\x84\x41\x40\x17\xa6\x50\xc5\x09\x63\x10\xe7\x09\xd4\x5c\xdd\x0e\x71\x16\xaf\xb1\x32\xe4\xc0\xe6\xea\xfd\x26\x55\x07\x40\x95\x84\x48\x62\x04\x10\x92\xb2\xd9\x27\xfb\x8a\xf3\x7c\xe6\xfe\xd4\xfc\xa6\x33\x79\x01\x5c\xc3\x1f\x80\xa8\xf3";
static struct
{
char *hostname;
unsigned int datasize;
const qbyte *data;
} knowncerts[] = {
{"triptohell.info", sizeof(triptohell_certdata), triptohell_certdata},
{"fte.triptohell.info", sizeof(fte_triptohell_certdata), fte_triptohell_certdata},
};
static int QDECL SSL_CheckCert(gnutls_session_t session) static int QDECL SSL_CheckCert(gnutls_session_t session)
{ {
gnutlsfile_t *file = qgnutls_session_get_ptr (session); gnutlsfile_t *file = qgnutls_session_get_ptr (session);
unsigned int certstatus; unsigned int certstatus;
cvar_t *tls_ignorecertificateerrors; cvar_t *tls_ignorecertificateerrors;
qboolean preverified = false;
size_t i;
for (i = 0; i < countof(knowncerts); i++)
{
if (!strcmp(knowncerts[i].hostname, file->certname))
{
unsigned int certcount, j;
const gnutls_datum_t *const certlist = qgnutls_certificate_get_peers(session, &certcount);
if (certlist && certcount)
{
size_t offset = 0;
for (j = 0; j < certcount; offset += certlist[j++].size)
{
if (certlist[j].size+offset > knowncerts[i].datasize)
break; //overflow...
if (memcmp(certlist[j].data, knowncerts[i].data+offset, certlist[j].size))
break;
}
if (j && j == certcount && offset == knowncerts[i].datasize)
preverified = true;
else
{
#ifdef _DEBUG
for (j = 0, offset = 0; j < certcount; j++)
offset += certlist[j].size;
Con_Printf("%s cert %zu bytes (chain %u)\n", file->certname, offset, certcount);
Con_Printf("\"");
for (j = 0; j < certcount; j++)
{
unsigned char *data = certlist[j].data;
unsigned int datasize = certlist[j].size, k;
for (k = 0; k < datasize; k++)
Con_Printf("\\x%02x", data[k]);
}
Con_Printf("\"\n\n");
#endif
Con_Printf(CON_ERROR "%s: Reported certificate does not match known certificate. Possible MITM attack, alternatively just an outdated client.\n", file->certname);
return GNUTLS_E_CERTIFICATE_ERROR;
}
}
break;
}
}
#ifdef GNUTLS_HAVE_VERIFY3 #ifdef GNUTLS_HAVE_VERIFY3
if (qgnutls_certificate_verify_peers3(session, file->certname, &certstatus) >= 0) if (qgnutls_certificate_verify_peers3(session, file->certname, &certstatus) >= 0)
@ -336,13 +395,16 @@ static int QDECL SSL_CheckCert(gnutls_session_t session)
{ {
gnutls_datum_t out; gnutls_datum_t out;
gnutls_certificate_type_t type; gnutls_certificate_type_t type;
if (preverified && certstatus == (GNUTLS_CERT_INVALID|GNUTLS_CERT_SIGNER_NOT_FOUND))
return 0;
if (certstatus == 0) if (certstatus == 0)
return 0; return 0;
type = qgnutls_certificate_type_get (session); type = qgnutls_certificate_type_get (session);
if (qgnutls_certificate_verification_status_print(certstatus, type, &out, 0) >= 0) if (qgnutls_certificate_verification_status_print(certstatus, type, &out, 0) >= 0)
{ {
Con_Printf("%s: %s\n", file->certname, out.data); Con_Printf("%s: %s (%x)\n", file->certname, out.data, certstatus);
//looks like its static anyway. qgnutls_free(out.data); //looks like its static anyway. qgnutls_free(out.data);
#else #else
@ -359,6 +421,8 @@ static int QDECL SSL_CheckCert(gnutls_session_t session)
qgnutls_x509_crt_import(cert, certlist, GNUTLS_X509_FMT_DER); qgnutls_x509_crt_import(cert, certlist, GNUTLS_X509_FMT_DER);
if (qgnutls_x509_crt_check_hostname(cert, file->certname)) if (qgnutls_x509_crt_check_hostname(cert, file->certname))
{ {
if (preverified && certstatus == (GNUTLS_CERT_INVALID|GNUTLS_CERT_SIGNER_NOT_FOUND))
return 0;
if (certstatus == 0) if (certstatus == 0)
return 0; return 0;