exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

bisonftp.dos.txt

bisonftp.dos.txt
Posted Feb 19, 2003
Authored by Immune Advisory | Site immune.dk

BisonFTP v4r2 is a FTP daemon used on Microsoft Windows 9x/NT systems which has a remote denial of service vulnerability if sent long FTP commands, and can be tricked into revealing information about files outside the ftp root. It's not possible to get in contact with the people at http://www.bisonftp.com anymore. I guess a new version will never be released.

tags | advisory, remote, web, denial of service, root
systems | windows
SHA-256 | 4787f651afaf0dc5c002b1ae7fb801b816220ee83fcb6ed6d91fbd0895b33bf9

bisonftp.dos.txt

Change Mirror Download
[immune advisory] Mulitple vulnerabilities found in BisonFTP
================================================================================
BisonFTP is a FTP daemon used on Microsoft Windows 9x/NT systems.


-[ DESCRIPTION ]----------------------------------------------------------------
I) BisonFTP is vulnerable to a DoS attack by sending ftp commands with big
data. By sending the ftp command ls or cwd with 4300 bytes or more,
BisonFTP will start 100% CPU usage until the socket is closed by the client.

II) It's possible to trick BisonFTP into revealing confidiential information
about files outside ftp root.

ftp> ls @../
227 Entering PASV Mode (10,10,10,10,4,126)
150 Directory List Follows
-rwxrwxrwx 1 user group 739577 Feb 05 2002 BisonFTP42.exe
226 Listing complete.
ftp> mget @../Biso
local: BisonFTP42.exe remote: BisonFTP42.exe
227 Entering PASV Mode (10,10,10,10,4,128)
550 File does not exist
ftp>

% Note that BisonFTP42.exe is NOT located in ftp root.


-[ AFFECTED VERSIONS ]----------------------------------------------------------
BisonFTP v4r2.
* Earlier versions are not tested.


-[ SOLUTION/WORKAROUND ]--------------------------------------------------------
It's not possible to get in contact with the people at http://www.bisonftp.com
anymore. I guess a new version will never be released.

Workaround, since there might not be a new version you probaly better to
install another FTP daemon.


-[ CREDIT ]---------------------------------------------------------------------
Bugs found: 15/jan 2003, by Jimmi Andersen
Vendor contacted: 11/feb 2003
Made public: 17/feb 2003
http://www.immune.dk | Immune - Angreb og forsvar af systemer
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    42 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close