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Re: RE: Download Accelerator Plus can be tricked to download malicious file
From: Bipin Gautam <gautam.bipin () gmail com>
Date: Fri, 6 Jan 2006 02:57:33 +0545
All mirrors from DAP were in speedbit server, and were validated as Application Servers like (twcows, downloads.com, etc) so there's no matter about corrupted or backdoored file as I see.
ok agreed..... but sorry for my ignorance but.... who are responsible to keep track of the integrity of all these mirrors 24/7............ I don't think all of them will meet all the strict standards and is truly as responsible as that of download.microsoft.com (for DAP users, win2003 sp1 has 12 different mirrors except download.microsoft.com) definately won't be recomended by microsoft..... its like accepting M$ patches from NON M$ servers. Moreover, in my test... i was getting the whole file from just one mirror server instead of different parts which could have reduced the chance of a successful code execution even in case of infection in one of those. Tens of mirror could mean tens of potential ways to look for for a successful break-in.Anyways... this discussion will just fade away until someone really intrested will decide to see if he/she can hack into one of those. regards, -bipin On 1/6/06, NaPa <napa () securitynation com> wrote:
Here Is The investigation about DAP, as I see there's no problem and no flaw at this time, but someone can act as a Proxy and replace some text mirrors form the list that Mirrorssearch.speedbit.com response. On this way could a user download some malicious file without knowledge. Affected: Every version. This is not a flaw of the application, if is vuln is a flaw with networking or other intrusion method. All mirrors from DAP were in speedbit server, and were validated as Application Servers like (twcows, downloads.com, etc) so there's no matter about corrupted or backdoored file as I see. Regards Luis Alberto Cortes Zavala Conection host: 212.143.22.20 speedbit.com ##REQUEST################################################################### ################# GET /cgi-bin/MirrorSearch.dll?ver9?Scheme=3&Site=domain.com&Path=path/to/file.zi p&Filename=filename.zip&Size=4294967295&Pos=0&Country=&Region=&R=0&Advanced= 1&Checksum=&BPS=0&V=7.5.1.6&DMD=028b05e62dc625aa456c43ac286a9326&D4=X0VGUg== &REF=&MID=ezI1Qzk5RjRBLTg5MUItNDUwNC05MEE5LUFDODg0NEY2MjExOH17NjU1NTk3NEMtN0 M4NS00ZTEzLUE5REUtNTBGNzdFRERBMkMyfQ==&SS=&SE=AAQAKgQAABAAKgIAABQAUgEAABUAUg IAABYAUgMAABcAUgAA&SN=0&SV=3 HTTP/1.1 Host: mirrorsearch.speedbit.com Accept: */* User-Agent: DA 7.0 (L0) Connection: Close Range: bytes=0- ##RESPONSE################################################################## ################# HTTP/1.1 302 Object Moved Content-Length: 359 Content-Type: text/html Location: http://212.143.22.90/cgi-bin/FilenameSearch.dll?ver5?Filename=filename.ZIP&S ize=-1&Country=&Region=&Scheme=3&Site=domain.net&Path=path/to/file.zip&R=0&A dvanced=1&Checksum=&BPS=0&V=7.5.1.6& X-Powered-By: ASP.NET Date: Thu, 05 Jan 2006 19:02:49 GMT Connection: close <head><title>Document Moved</title></head> <body><h1>Object Moved</h1>This document may be found <a HREF="http://212.143.22.90/cgi-bin/FilenameSearch.dll?ver5?Filename=FILENAME .ZIP&Size=-1&Country=&Region=&Scheme=3&Site=DOMAIN.COM&a mp;Path=PATH/TO/FILE.zip&R=0&Advanced=1&Checksum=&BPS=0& V=7.5.1.6&">here</a></body>HTTP/1.1 200 OK Connection: close Date: Thu, 05 Jan 2006 19:02:50 GMT X-Powered-By: ASP.NET ##REQUEST################################################################### ############## GET /cgi-bin/FilenameSearch.dll?ver5?Filename=filename.ZIP&Size=-1&Country=&Regi on=&Scheme=3&Site=domain.com&Path=path/to/file.zip&R=0&Advanced=1&Checksum=& BPS=0&V=7.5.1.6& HTTP/1.1 Host: 212.143.22.90 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; es-AR; rv:1.8) Gecko/20051111 Firefox/1.5 Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q= 0.8,image/png,*/*;q=0.5 Accept-Language: es-ar,es;q=0.8,en-us;q=0.5,en;q=0.3 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Proxy-Connection: keep-alive ###RESPONSE################################################################# ############## HTTP/1.1 200 OK Connection: close Date: Thu, 05 Jan 2006 19:03:38 GMT X-Powered-By: ASP.NET <?xml version="1.0"?> <RES> <URLLIST> </URLLIST> <MISC> <TOTALRETURNEDRESULTS> 0 </TOTALRETURNEDRESULTS> <SEARCHTIME> 0</SEARCHTIME> <COPYRIGHT>Copyright (C) 1999-2003 SpeedBit Ltd. All specifications are subject to change. All trademarks are the property of their respective owners</COPYRIGHT> </MISC><DESCRIPTION/> </RES> #############################WINZIP EXAMPLE ############################################## #############################REQUEST######################################## ############## GET /cgi-bin/MirrorSearch.dll?ver9?Scheme=3&Site=download.winzip.com&Path=/winzi p100.exe&Filename=winzip100.exe&Size=4294967295&Pos=0&Country=&Region=&R=0&A dvanced=1&Checksum=&BPS=0&V=7.5.1.6&DMD=028b05e62dc625aa456c43ac286a9326&D4= RV9YSQ==&REF=&MID=ezI1Qzk5RjRBLTg5MUItNDUwNC05MEE5LUFDODg0NEY2MjExOH17NjU1NT k3NEMtN0M4NS00ZTEzLUE5REUtNTBGNzdFRERBMkMyfQ==&SS=&SE=AAwAKgIAAAoAKgQAAB4ALn EXAB4ABQQAACQALjQnACQAMwQAACYAWwQAACgANwQAASkAN7sEAS8AWwEAAC8AWwIAADEABQQA&S N=0&SV=3 HTTP/1.1 Host: mirrorsearch.speedbit.com Accept: */* User-Agent: DA 7.0 (L0) Connection: Close Range: bytes=0- ############################RESPONSE######################################## ############## HTTP/1.1 302 Object Moved Content-Length: 368 Content-Type: text/html Location: http://212.143.22.130/cgi-bin/FilenameSearch.dll?ver5?Filename=WINZIP100.EXE &Size=-1&Country=&Region=&Scheme=3&Site=download.winzip.com&Path=/winzip100. exe&R=0&Advanced=1&Checksum=&BPS=0&V=7.5.1.6& X-Powered-By: ASP.NET Date: Thu, 05 Jan 2006 19:23:34 GMT Connection: close <head><title>Document Moved</title></head> <body><h1>Object Moved</h1>This document may be found <a HREF="http://212.143.22.130/cgi-bin/FilenameSearch.dll?ver5?Filename=WINZIP1 00.EXE&Size=-1&Country=&Region=&Scheme=3&Site=download.w inzip.com&Path=/winzip100.exe&R=0&Advanced=1&Checksum=&B PS=0&V=7.5.1.6&">here</a></body>HTTP/1.1 200 OK Connection: close Date: Thu, 05 Jan 2006 19:23:34 GMT X-Powered-By: ASP.NET #############################REQUEST######################################## ############# GET /cgi-bin/FilenameSearch.dll?ver5?Filename=WINZIP100.EXE&Size=-1&Country=&Reg ion=&Scheme=3&Site=download.winzip.com&Path=/winzip100.exe&R=0&Advanced=1&Ch ecksum=&BPS=0&V=7.5.1.6& HTTP/1.1 ost: 212.143.22.130 Accept: */* User-Agent: DA 7.0 Connection: Close Range: bytes=0- Referer: http://mirrorsearch.speedbit.com/cgi-bin/MirrorSearch.dll?ver9?Scheme=3&Site =download.winzip.com&Path=/winzip100.exe&Filename=winzip100.exe&Size=4294967 295&Pos=0&Country=&Region=&R=0&Advanced=1&Checksum=&BPS=0&V=7.5.1.6&DMD=028b 05e62dc625aa456c43ac286a9326&D4=RV9YSQ==&REF=&MID=ezI1Qzk5RjRBLTg5MUItNDUwNC 05MEE5LUFDODg0NEY2MjExOH17NjU1NTk3NEMtN0M4NS00ZTEzLUE5REUtNTBGNzdFRERBMkMyfQ ==&SS=&SE=AAwAKgIAAAoAKgQAAB4ALnEXAB4ABQQAACQALjQnACQAMwQAACYAWwQAACgANwQAAS kAN7sEAS8AWwEAAC8AWwIAADEABQQA&SN=0&SV=3 ############################FINAL RESPONSE################################################ HTTP/1.1 200 OK Connection: close Date: Thu, 05 Jan 2006 19:23:53 GMT X-Powered-By: ASP.NET <?xml version="1.0"?> <RES> <URLLIST> <URL size="5834344" fullurl ="http://winzip.softonic.com/free_download.phtml?step=down&id_file=9840&dest 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fullurl ="ftp://ftp.telusplanet.net/./pub/simtelnet/win95/compress/winzip100.exe"></ URL> </URLLIST> <MISC> <TOTALRETURNEDRESULTS> 40 </TOTALRETURNEDRESULTS> <SEARCHTIME> 0</SEARCHTIME> <COPYRIGHT>Copyright (C) 1999-2003 SpeedBit Ltd. All specifications are subject to change. All trademarks are the property of their respective owners</COPYRIGHT> </MISC><DESCRIPTION/> </RES> ________________________________________ De: bipin gautam [mailto:visitbipin () hotmail com] Enviado el: jueves, 05 de enero de 2006 10:38 Para: napa () securitynation com Asunto: RE: Download Accelerator Plus can be tricked to download malicious file i figured it out....... DAP searches for mirror from��������� mirrorsearch.speedbit.com/
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Current thread:
- Download Accelerator Plus can be tricked to download malicious file Bipin Gautam (Jan 04)
- Re: Download Accelerator Plus can be tricked to download malicious file Bipin Gautam (Jan 05)
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- RE: Download Accelerator Plus can be tricked to download malicious file NaPa (Jan 05)
- Re: RE: Download Accelerator Plus can be tricked to download malicious file Bipin Gautam (Jan 05)