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/*
david: code is based on SNORT spo_database.c
tested with :
-instantclient_10_2 on Oracle 10.2.0
-instantclient-basic-linux.*-11.2.0.3.0.zip + instantclient-sdk-linux.*-11.2.0.3.0.zip
on Oracle 9i and on Oracle 11g
*/
#include "hydra-mod.h"
#ifndef LIBORACLE
void dummy_oracle() {
printf("\n");
}
#else
#include <oci.h>
#include <sys/types.h>
extern char *HYDRA_EXIT;
OCIEnv *o_environment;
OCISvcCtx *o_servicecontext;
OCIBind *o_bind;
OCIError *o_error;
OCIStmt *o_statement;
OCIDefine *o_define;
text o_errormsg[512];
sb4 o_errorcode;
void print_oracle_error(char *err) {
if (verbose) {
OCIErrorGet(o_error, 1, NULL, &o_errorcode, o_errormsg, sizeof(o_errormsg), OCI_HTYPE_ERROR);
fprintf(stderr, "[ERROR] Oracle_error: %s - %s\n", o_errormsg, err);
}
}
int start_oracle(int s, char *ip, int port, unsigned char options, char *miscptr, FILE * fp) {
char *empty = "";
char *login, *pass, buffer[200], sid[100];
if (strlen(login = hydra_get_next_login()) == 0)
login = empty;
if (strlen(pass = hydra_get_next_password()) == 0)
pass = empty;
strncpy(sid, miscptr, sizeof(sid) - 1);
sid[sizeof(sid) - 1] = 0;
snprintf(buffer, sizeof(buffer), "//%s:%d/%s", hydra_address2string(ip), port, sid);
/*
To use the Easy Connect naming method, PHP must be linked with Oracle 10g or greater Client libraries.
The Easy Connect string for Oracle 10g is of the form: [//]host_name[:port][/service_name].
With Oracle 11g, the syntax is: [//]host_name[:port][/service_name][:server_type][/instance_name].
Service names can be found by running the Oracle utility lsnrctl status on the database server machine.
The tnsnames.ora file can be in the Oracle Net search path, which includes $ORACLE_HOME/network/admin
and /etc. Alternatively set TNS_ADMIN so that $TNS_ADMIN/tnsnames.ora is read. Make sure the web
daemon has read access to the file.
*/
if (OCIInitialize(OCI_DEFAULT, NULL, NULL, NULL, NULL)) {
print_oracle_error("OCIInitialize");
return 4;
}
if (OCIEnvInit(&o_environment, OCI_DEFAULT, 0, NULL)) {
print_oracle_error("OCIEnvInit");
return 4;
}
if (OCIEnvInit(&o_environment, OCI_DEFAULT, 0, NULL)) {
print_oracle_error("OCIEnvInit 2");
return 4;
}
if (OCIHandleAlloc(o_environment, (dvoid **) & o_error, OCI_HTYPE_ERROR, (size_t) 0, NULL)) {
print_oracle_error("OCIHandleAlloc");
return 4;
}
if (OCILogon(o_environment, o_error, &o_servicecontext, (const OraText *) login, strlen(login), (const OraText *) pass, strlen(pass), (const OraText *) buffer, strlen(buffer))) {
OCIErrorGet(o_error, 1, NULL, &o_errorcode, o_errormsg, sizeof(o_errormsg), OCI_HTYPE_ERROR);
//database: oracle_error: ORA-01017: invalid username/password; logon denied
//database: oracle_error: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
//database: oracle_error: ORA-28000: the account is locked
//Failed login attempts is set to 10 by default
if (verbose) {
hydra_report(stderr, "[VERBOSE] database: oracle_error: %s\n", o_errormsg);
}
if (strstr((const char *) o_errormsg, "ORA-12514") != NULL) {
hydra_report(stderr, "[ERROR] ORACLE SID is not valid, you should try to enumerate them.\n");
}
if (strstr((const char *) o_errormsg, "ORA-28000") != NULL) {
hydra_report(stderr, "[ERROR] ORACLE account %s is locked.\n", login);
}
if (o_error) {
OCIHandleFree((dvoid *) o_error, OCI_HTYPE_ERROR);
}
hydra_completed_pair();
//by default, set in sqlnet.ora, the trace file is generated in pwd to log any errors happening,
//as we don't care, we are deleting the file
//set these parameters to not generate the file
//LOG_DIRECTORY_CLIENT = /dev/null
//LOG_FILE_CLIENT = /dev/null
unlink("sqlnet.log");
return 2;
} else {
OCILogoff(o_servicecontext, o_error);
if (o_error) {
OCIHandleFree((dvoid *) o_error, OCI_HTYPE_ERROR);
}
hydra_report_found_host(port, ip, "oracle", fp);
hydra_completed_pair_found();
}
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return 3;
return 1;
}
void service_oracle(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port, char *hostname) {
int run = 1, next_run = 1, sock = -1;
int myport = PORT_ORACLE;
hydra_register_socket(sp);
if (memcmp(hydra_get_next_pair(), &HYDRA_EXIT, sizeof(HYDRA_EXIT)) == 0)
return;
if ((miscptr == NULL) || (strlen(miscptr) == 0)) {
//SID is required as miscptr
hydra_report(stderr, "[ERROR] Oracle SID is required, using ORCL as default\n");
miscptr = "ORCL";
}
while (1) {
switch (run) {
case 1: /* connect and service init function */
if (sock >= 0)
sock = hydra_disconnect(sock);
if (port != 0)
myport = port;
sock = hydra_connect_tcp(ip, myport);
port = myport;
if (sock < 0) {
if (verbose || debug)
hydra_report(stderr, "[ERROR] Child with pid %d terminating, can not connect\n", (int) getpid());
hydra_child_exit(1);
}
next_run = 2;
break;
case 2:
next_run = start_oracle(sock, ip, port, options, miscptr, fp);
hydra_child_exit(0);
break;
case 3: /* clean exit */
if (sock >= 0)
sock = hydra_disconnect(sock);
hydra_child_exit(0);
return;
default:
hydra_report(stderr, "[ERROR] Caught unknown return code, exiting!\n");
hydra_child_exit(2);
}
run = next_run;
}
}
#endif
int service_oracle_init(char *ip, int sp, unsigned char options, char *miscptr, FILE * fp, int port, char *hostname) {
// called before the childrens are forked off, so this is the function
// which should be filled if initial connections and service setup has to be
// performed once only.
//
// fill if needed.
//
// return codes:
// 0 all OK
// -1 error, hydra will exit, so print a good error message here
return 0;
}
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