smb2 module, provides linkage with libsmbclient to interface with smbv2/v3 servers.

Developed against version: 2:4.7.6+dfsg~ubuntu-0ubuntu2.1
This commit is contained in:
Karim Kanso 2020-01-17 14:03:29 +00:00
parent db2a1feeb8
commit 2423cbd5d5
5 changed files with 448 additions and 5 deletions

1
.gitignore vendored
View file

@ -13,3 +13,4 @@ hydra-gtk/stamp-h
pw-inspector
pw-inspector.exe
hydra.restore
*~

View file

@ -21,7 +21,8 @@ SRC = hydra-vnc.c hydra-pcnfs.c hydra-rexec.c hydra-nntp.c hydra-socks5.c \
hydra-oracle-sid.c hydra-http-proxy.c hydra-http-form.c hydra-irc.c \
hydra-s7-300.c hydra-redis.c hydra-adam6500.c hydra-rtsp.c \
hydra-rpcap.c hydra-radmin2.c \
hydra-time.c crc32.c d3des.c bfg.c ntlm.c sasl.c hmacmd5.c hydra-mod.c
hydra-time.c crc32.c d3des.c bfg.c ntlm.c sasl.c hmacmd5.c hydra-mod.c \
hydra-smb2.c
OBJ = hydra-vnc.o hydra-pcnfs.o hydra-rexec.o hydra-nntp.o hydra-socks5.o \
hydra-telnet.o hydra-cisco.o hydra-http.o hydra-ftp.o hydra-imap.o \
hydra-pop3.o hydra-smb.o hydra-icq.o hydra-cisco-enable.o hydra-ldap.o \
@ -34,7 +35,8 @@ OBJ = hydra-vnc.o hydra-pcnfs.o hydra-rexec.o hydra-nntp.o hydra-socks5.o \
hydra-ncp.o hydra-http-proxy.o hydra-http-form.o hydra-irc.o \
hydra-redis.o hydra-rdp.o hydra-s7-300.c hydra-adam6500.o hydra-rtsp.o \
hydra-rpcap.o hydra-radmin2.o \
crc32.o d3des.o bfg.o ntlm.o sasl.o hmacmd5.o hydra-mod.o hydra-time.o
crc32.o d3des.o bfg.o ntlm.o sasl.o hmacmd5.o hydra-mod.o hydra-time.o \
hydra-smb2.o
BINS = hydra pw-inspector
EXTRA_DIST = README README.arm README.palm CHANGES TODO INSTALL LICENSE \

108
configure vendored
View file

@ -72,6 +72,8 @@ MANDIR=""
XHYDRA_SUPPORT=""
FREERDP2_PATH=""
WINPR2_PATH=""
SMBC_PATH=""
SMBC_IPATH=""
if [ '!' "X" = "X$*" ]; then
while [ $# -gt 0 ] ; do
@ -1178,6 +1180,54 @@ fi
BSON_IPATH=""
fi
echo "Checking for smbclient (libsmbclient.so, libsmbclient.h) ..."
for i in $LIBDIRS ; do
if [ "X" = "X$SMBC_PATH" ]; then
if [ -f "$i/libsmbclient.so" -o -f "$i/libsmbclient.dylib" -o -f "$i/libsmbclient.a" ]; then
SMBC_PATH="$i"
fi
fi
if [ "X" = "X$SMBC_PATH" ]; then
TMP_LIB=`/bin/ls $i/libsmbclient.so* 2> /dev/null | grep smbclient`
if [ -n "$TMP_LIB" ]; then
SMBC_PATH="$i"
fi
fi
if [ "X" = "X$SMBC_PATH" ]; then
TMP_LIB=`/bin/ls $i/libsmbclient.dll* 2> /dev/null | grep smbclient`
if [ -n "$TMP_LIB" ]; then
SMBC_PATH="$i"
fi
fi
done
SMBC_IPATH=
for i in $INCDIRS ; do
if [ "X" = "X$SMBC_IPATH" ]; then
if [ -f "$i/libsmbclient.h" ]; then
SMBC_IPATH="$i"
fi
if [ -f "$i/samba-4.0/libsmbclient.h" ]; then
SMBC_IPATH="$i/samba-4.0"
fi
fi
done
if [ "X" != "X$DEBUG" ]; then
echo DEBUG: SMBC_PATH=$SMBC_PATH/libsmbclient
echo DEBUG: SMBC_IPATH=$SMBC_IPATH/libsmbclient.h
fi
if [ -n "$SMBC_PATH" -a -n "$SMBC_IPATH" ]; then
echo " ... found"
fi
if [ "X" = "X$SMBC_PATH" -o "X" = "X$SMBC_IPATH" ]; then
echo " ... NOT found, module smb2 disabled"
SMBC_PATH=""
SMBC_IPATH=""
fi
if [ "X" = "X$XHYDRA_SUPPORT" ]; then
echo "Checking for GUI req's (pkg-config, gtk+-2.0) ..."
XHYDRA_SUPPORT=`pkg-config --help > /dev/null 2>&1 || echo disabled`
@ -1271,7 +1321,29 @@ XLIBS=""
XLIBPATHS=""
XIPATHS=""
if [ -n "$FIREBIRD_PATH" -o -n "$PCRE_PATH" -o -n "$IDN_PATH" -o -n "$SSL_PATH" -o -n "$CRYPTO_PATH" -o -n "$NSL_PATH" -o -n "$SOCKET_PATH" -o -n "$RESOLV_PATH" -o -n "$SAPR3_PATH" -o -n "$SSH_PATH" -o -n "$POSTGRES_PATH" -o -n "$SVN_PATH" -o -n "$NCP_PATH" -o -n "$CURSES_PATH" -o -n "$ORACLE_PATH" -o -n "$AFP_PATH" -o -n "$MYSQL_PATH" -o -n "$MCACHED_PATH" -o -n "$MONGOD_PATH" -o -n "$FREERDP2_PATH" -o -n "$WINPR2_PATH" ]; then
if [ -n "$FIREBIRD_PATH" -o \
-n "$PCRE_PATH" -o \
-n "$IDN_PATH" -o \
-n "$SSL_PATH" -o \
-n "$CRYPTO_PATH" -o \
-n "$NSL_PATH" -o \
-n "$SOCKET_PATH" -o \
-n "$RESOLV_PATH" -o \
-n "$SAPR3_PATH" -o \
-n "$SSH_PATH" -o \
-n "$POSTGRES_PATH" -o \
-n "$SVN_PATH" -o \
-n "$NCP_PATH" -o \
-n "$CURSES_PATH" -o \
-n "$ORACLE_PATH" -o \
-n "$AFP_PATH" -o \
-n "$MYSQL_PATH" -o \
-n "$MCACHED_PATH" -o \
-n "$MONGOD_PATH" -o \
-n "$FREERDP2_PATH" -o \
-n "$WINPR2_PATH" -o \
-n "$SMBC_PATH" \
]; then
if [ "$SYSS" = "Darwin" ] && [ ! -d "/lib" ]; then
#for libraries installed with MacPorts
if [ -d "/opt/local/lib" ]; then
@ -1359,9 +1431,35 @@ fi
if [ -n "$WINPR2_PATH" ]; then
XDEFINES="$XDEFINES -DLIBWINPR2"
fi
if [ -n "$SMBC_PATH" ]; then
XDEFINES="$XDEFINES -DLIBSMBCLIENT"
fi
OLDPATH=""
for i in $SSL_PATH $FIREBIRD_PATH $WORACLE_LIB_PATH $PCRE_PATH $IDN_PATH $CRYPTO_PATH $SSH_PATH $NSL_PATH $SOCKET_PATH $RESOLV_PATH $SAPR3_PATH $POSTGRES_PATH $SVN_PATH $NCP_PATH $CURSES_PATH $ORACLE_PATH $AFP_PATH $MYSQL_PATH $MCACHED_PATH $MONGODB_PATH $BSON_PATH $FREERDP2_PATH $WINPR2_PATH; do
for i in $SSL_PATH \
$FIREBIRD_PATH \
$WORACLE_LIB_PATH \
$PCRE_PATH \
$IDN_PATH \
$CRYPTO_PATH \
$SSH_PATH \
$NSL_PATH \
$SOCKET_PATH \
$RESOLV_PATH \
$SAPR3_PATH \
$POSTGRES_PATH \
$SVN_PATH \
$NCP_PATH \
$CURSES_PATH \
$ORACLE_PATH \
$AFP_PATH \
$MYSQL_PATH \
$MCACHED_PATH \
$MONGODB_PATH \
$BSON_PATH \
$FREERDP2_PATH \
$WINPR2_PATH \
$SMBC_PATH; do
if [ "$OLDPATH" = "$i" ]; then
OLDPATH="$i"
else
@ -1423,6 +1521,9 @@ fi
if [ -n "$FREERDP2_IPATH" ]; then
XIPATHS="$XIPATHS -I$FREERDP2_IPATH -I$WINPR2_IPATH"
fi
if [ -n "$SMBC_IPATH" ]; then
XIPATHS="$XIPATHS -I$SMBC_IPATH"
fi
if [ -n "$HAVE_GCRYPT" ]; then
XLIBS="$XLIBS -lgcrypt"
fi
@ -1501,6 +1602,9 @@ fi
if [ -n "$WINPR2_PATH" ]; then
XLIBS="$XLIBS -lwinpr2"
fi
if [ -n "$SMBC_PATH" ]; then
XLIBS="$XLIBS -lsmbclient"
fi
if [ -d /usr/kerberos/include ]; then
XIPATHS="$XIPATHS -I/usr/kerberos/include"
fi

304
hydra-smb2.c Normal file
View file

@ -0,0 +1,304 @@
/**
* 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 <https://www.gnu.org/licenses/>.
*
*
* Copyright (C) 2020 Karim Kanso, all rights reserved.
* kaz 'dot' kanso 'at' g mail 'dot' com
*/
#if defined(LIBSMBCLIENT)
#include "hydra-mod.h"
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <libsmbclient.h>
extern char *HYDRA_EXIT;
typedef struct creds {
const char* workgroup;
const char* user;
const char* pass;
} creds_t;
const char default_workgroup[] = "WORKGROUP";
bool use_nt_hash = false;
const char* workgroup = default_workgroup;
const char* netbios_name = NULL;
#define EXIT_PROTOCOL_ERROR hydra_child_exit(2)
#define EXIT_CONNECTION_ERROR hydra_child_exit(1)
#define EXIT_NORMAL hydra_child_exit(0)
void smb2_auth_provider(SMBCCTX *c,
const char *srv,
const char *shr,
char *wg, int wglen,
char *un, int unlen,
char *pw, int pwlen) {
creds_t* cr = (creds_t*)smbc_getOptionUserData(c);
strncpy(wg, cr->workgroup, wglen);
strncpy(un, cr->user, unlen);
strncpy(pw, cr->pass, pwlen);
wg[wglen-1] = 0;
un[unlen-1] = 0;
pw[pwlen-1] = 0;
}
bool smb2_run_test(creds_t* cr, const char* server, uint16_t port) {
SMBCCTX* ctx = smbc_new_context();
if (ctx == NULL) {
hydra_report(stderr, "[ERROR] failed to create context\n");
EXIT_PROTOCOL_ERROR;
}
// samba internal debugging will be dumped to stderr
smbc_setDebug(ctx, debug ? 7 : 0);
smbc_setOptionDebugToStderr(ctx, true);
smbc_setFunctionAuthDataWithContext(ctx, smb2_auth_provider);
smbc_setOptionUserData(ctx, cr);
// 0 will use default port
smbc_setPort(ctx, port);
smbc_setOptionNoAutoAnonymousLogin(ctx, false);
smbc_setOptionUseNTHash(ctx, use_nt_hash);
if (netbios_name) {
smbc_setNetbiosName(ctx, (char*)netbios_name);
}
ctx = smbc_init_context(ctx);
if (!ctx) {
hydra_report(stderr, "[ERROR] smbc_init_context fail\n");
smbc_free_context(ctx, 1);
EXIT_PROTOCOL_ERROR;
}
char uri[2048];
snprintf(uri, sizeof(uri) - 1, "smb://%s/IPC$", server);
uri[sizeof(uri)-1] = 0;
if (verbose) {
printf("[INFO] Connecting to: %s with %s\\%s%%%s\n",
uri, cr->workgroup,
cr->user,
cr->pass);
}
SMBCFILE *fd = smbc_getFunctionOpendir(ctx)(ctx, uri);
if (fd) {
hydra_report(stderr, "[WARNING] Unexpected open on IPC$\n");
smbc_getFunctionClosedir(ctx)(ctx, fd);
smbc_free_context(ctx, 1);
fd = NULL;
return true;
}
/*
errno is set to 22 (EINVAL) when IPC$ as been opened but can not
be opened like a normal share. This corresponds to samba error
NT_STATUS_INVALID_INFO_CLASS, however this precise error code is
not available outside of the library. Thus, instead the library
sets a generic error (EINVAL) which can also correspond to other
cases (see below test).
This is not ideal, but appears to be the best that the
libsmbclient library offers as detailed state information is
internalised and not available. Further, it is also not possible
from the api to separate the connection, authentication and
authorisation.
The following text is taken from the libsmbclient header file for
the return value of the smbc_getFunctionOpendir function:
Valid directory handle. < 0 on error with errno set:
- EACCES Permission denied.
- EINVAL A NULL file/URL was passed, or the URL would
not parse, or was of incorrect form or smbc_init not
called.
- ENOENT durl does not exist, or name is an
- ENOMEM Insufficient memory to complete the
operation.
- ENOTDIR name is not a directory.
- EPERM the workgroup could not be found.
- ENODEV the workgroup or server could not be found.
*/
switch (errno) {
case EINVAL: // 22
// probably password ok
smbc_free_context(ctx, 1);
return true;
break;
case EACCES:
// 100% access denied
break;
case EHOSTUNREACH:
case ETIMEDOUT:
case ECONNREFUSED:
// there are probably more codes that could be added here to
// indicate connection errors.
smbc_free_context(ctx, 1);
EXIT_CONNECTION_ERROR;
break;
default:
// unexpected error
hydra_report(stderr, "[ERROR] %s (%d)\n", strerror(errno), errno);
smbc_free_context(ctx, 1);
EXIT_PROTOCOL_ERROR;
}
smbc_free_context(ctx, 1);
return false;
}
void service_smb2(char *ip,
int32_t sp,
unsigned char options,
char *miscptr,
FILE * fp,
int32_t port,
char *hostname) {
hydra_register_socket(sp);
while (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT))) {
char *login, *pass;
login = hydra_get_next_login();
pass = hydra_get_next_password();
creds_t cr = {
.user = login,
.pass = pass,
.workgroup = workgroup,
};
if (smb2_run_test(&cr, hydra_address2string(ip), port & 0xffff)) {
hydra_completed_pair_found();
} else {
hydra_completed_pair();
}
}
EXIT_NORMAL;
}
// constants used by option parser
const char tkn_workgroup[] = "workgroup:{";
const char tkn_nthash_true[] = "nthash:true";
const char tkn_nthash_false[] = "nthash:false";
const char tkn_netbios[] = "netbios:{";
#define CMP(s1, s2) (strncmp(s1, s2, sizeof(s1) - 1) == 0)
int32_t service_smb2_init(char *ip,
int32_t sp,
unsigned char options,
char *miscptr,
FILE * fp,
int32_t port,
char *hostname) {
if (!miscptr)
return 0;
while(*miscptr) {
if (isspace(*miscptr)) {
miscptr++;
continue;
}
if (CMP(tkn_workgroup, miscptr)) {
miscptr += sizeof(tkn_workgroup) - 1;
char* p = strchr(miscptr, '}');
if (p == NULL) {
hydra_report(stderr, "[ERROR] missing closing brace in workgroup\n");
return -1;
}
*p = '\0';
workgroup = miscptr;
miscptr = p + 1;
if (verbose || debug) {
printf("[VERBOSE] Set workgroup to: %s\n", workgroup);
}
continue;
}
if (CMP(tkn_netbios, miscptr)) {
miscptr += sizeof(tkn_netbios) - 1;
char* p = strchr(miscptr, '}');
if (p == NULL) {
hydra_report(stderr, "[ERROR] missing closing brace in netbios name\n");
return -1;
}
*p = '\0';
netbios_name = miscptr;
miscptr = p + 1;
if (verbose || debug) {
printf("[VERBOSE] Set netbios name to: %s\n", netbios_name);
}
continue;
}
if (CMP(tkn_nthash_true, miscptr)) {
miscptr += sizeof(tkn_nthash_true) - 1;
use_nt_hash = true;
if (verbose || debug) {
printf("[VERBOSE] Enabled nthash.\n");
}
continue;
}
if (CMP(tkn_nthash_false, miscptr)) {
miscptr += sizeof(tkn_nthash_false) - 1;
use_nt_hash = false;
if (verbose || debug) {
printf("[VERBOSE] Disabled nthash.\n");
}
continue;
}
hydra_report(stderr, "[ERROR] unable to parse: %s\n", miscptr);
return -1;
}
return 0;
}
void usage_smb2(const char* service) {
puts("Module is a thin wrapper over the Samba client library (libsmbclient).\n"
"Thus, is capable of negotiating v1, v2 and v3 of the protocol.\n"
"\n"
"As this relies on Samba libraries, the system smb.conf will be parsed\n"
"when library starts up. It is possible to add configuration options\n"
"into that file that affect this module (such as min/max supported\n"
"protocol version).\n"
"\n"
"Caution: due to the high-level libsmbclient api (compared the smb\n"
"Hydra module), the accuracy is reduced. That is, this module works by\n"
"attempting to open the IPC$ share, which is reported as an error,\n"
"e.g. try this with the smbclient tool and it will raise the\n"
"NT_STATUS_INVALID_INFO_CLASS error). Sadly, the level of feedback\n"
"from the api does not distinguish this error from general/unknown\n"
"errors, so it might be possible to have false positives due to this\n"
"fact. One example of this is when the library can not parse the uri\n"
"correctly. On the other hand, false negatives could occur when a\n"
"valid credential is unable to open the share due to access control,\n"
"e.g. a locked/suspended account.\n"
"\n"
"There are three module options available:\n"
" workgroup:{XXX} - set the users workgroup\n"
" netbios:{XXX} - set the recipients netbios name\n"
" nthash:true or nthash:false - threat password as an nthash\n"
"\n"
"Examples: \n"
" hydra smb2://abc.com -l admin -p xxx -m workgroup:{OFFICE}\n"
" hydra smb2://1.2.3.4 -l admin -p F54F3A1D3C38140684FF4DAD029F25B5 -m 'workgroup:{OFFICE} nthash:true'\n"
" hydra -l admin -p F54F3A1D3C38140684FF4DAD029F25B5 'smb2://1.2.3.4/workgroup:{OFFICE} nthash:true'\n"
);
}
#endif // LIBSMBCLIENT

34
hydra.c
View file

@ -45,6 +45,7 @@ void usage_http_proxy(const char* service);
void usage_http_proxy_urlenum(const char* service);
void usage_snmp(const char* service);
void usage_http(const char* service);
void usage_smb2(const char* service);
extern void service_asterisk(char *ip, int32_t sp, unsigned char options, char *miscptr, FILE * fp, int32_t port, char *hostname);
@ -92,6 +93,10 @@ extern void service_rpcap(char *ip, int32_t sp, unsigned char options, char *mis
// ADD NEW SERVICES HERE
#if defined(LIBSMBCLIENT)
extern int32_t service_smb2_init(char *ip, int32_t sp, unsigned char options, char *miscptr, FILE * fp, int32_t port, char *hostname);
extern void service_smb2(char *ip, int32_t sp, unsigned char options, char *miscptr, FILE * fp, int32_t port, char *hostname);
#endif
#ifdef HAVE_MATH_H
extern void service_mysql(char *ip, int32_t sp, unsigned char options, char *miscptr, FILE * fp, int32_t port, char *hostname);
@ -196,7 +201,7 @@ extern int32_t service_rpcap_init(char *ip, int32_t sp, unsigned char options, c
// ADD NEW SERVICES HERE
char *SERVICES =
"adam6500 asterisk afp cisco cisco-enable cvs firebird ftp[s] http[s]-{head|get|post} http[s]-{get|post}-form http-proxy http-proxy-urlenum icq imap[s] irc ldap2[s] ldap3[-{cram|digest}md5][s] memcached mongodb mssql mysql ncp nntp oracle oracle-listener oracle-sid pcanywhere pcnfs pop3[s] postgres radmin2 rdp redis rexec rlogin rpcap rsh rtsp s7-300 sapr3 sip smb smtp[s] smtp-enum snmp socks5 ssh sshkey svn teamspeak telnet[s] vmauthd vnc xmpp";
"adam6500 asterisk afp cisco cisco-enable cvs firebird ftp[s] http[s]-{head|get|post} http[s]-{get|post}-form http-proxy http-proxy-urlenum icq imap[s] irc ldap2[s] ldap3[-{cram|digest}md5][s] memcached mongodb mssql mysql ncp nntp oracle oracle-listener oracle-sid pcanywhere pcnfs pop3[s] postgres radmin2 rdp redis rexec rlogin rpcap rsh rtsp s7-300 sapr3 sip smb smb2 smtp[s] smtp-enum snmp socks5 ssh sshkey svn teamspeak telnet[s] vmauthd vnc xmpp";
#define MAXBUF 520
#define MAXLINESIZE ( ( MAXBUF / 2 ) - 4 )
@ -437,6 +442,9 @@ SERVICE3("mongodb", mongodb),
SERVICE(sip),
SERVICE3("smbnt", smb),
SERVICE3("smb", smb),
#endif
#if defined(LIBSMBCLIENT)
SERVICE3("smb2", smb2),
#endif
SERVICE3("smtp", smtp),
SERVICE3("smtp-enum", smtp_enum),
@ -1288,6 +1296,7 @@ int32_t hydra_lookup_port(char *service) {
{"rsh", PORT_RSH, PORT_RSH_SSL},
{"sapr3", PORT_SAPR3, PORT_SAPR3_SSL},
{"smb", PORT_SMBNT, PORT_SMBNT_SSL},
{"smb2", PORT_SMBNT, PORT_SMBNT_SSL},
{"smbnt", PORT_SMBNT, PORT_SMBNT_SSL},
{"socks5", PORT_SOCKS5, PORT_SOCKS5_SSL},
{"ssh", PORT_SSH, PORT_SSH_SSL},
@ -2152,6 +2161,10 @@ int main(int argc, char *argv[]) {
SERVICES = hydra_string_replace(SERVICES, "svn ", "");
strcat(unsupported, "svn ");
#endif
#if !defined(LIBSMBCLIENT)
SERVICES = hydra_string_replace(SERVICES, "smb2 ", "");
strcat(unsupported, "smb2 ");
#endif
#ifndef LIBOPENSSL
// for ftps
@ -2801,6 +2814,25 @@ int main(int argc, char *argv[]) {
bail("Compiled without OPENSSL support, module not available!");
#endif
}
if (strcmp(hydra_options.service, "smb2") == 0) {
#if !defined(LIBSMBCLIENT)
bail("Compiled without LIBSMBCLIENT support, module not available!");
#else
if (hydra_options.login != NULL &&
(index(hydra_options.login, '\\') != NULL ||
index(hydra_options.login, '/') != NULL))
fprintf(stderr,
"[WARNING] potential windows domain specification found in "
"login. You must use the -m option to pass a domain.\n");
if (hydra_options.miscptr == NULL || \
(strlen(hydra_options.miscptr) == 0)) {
fprintf(stderr,
"[WARNING] Workgroup was not specified, using \"WORKGROUP\"\n");
}
i = 1;
#endif
}
if (strcmp(hydra_options.service, "rdp") == 0){
#ifndef LIBFREERDP2
bail("Compiled without FREERDP2 support, module not available!");