MS02-018: Microsoft IIS FTP Status Request DoS (uncredentialed check)

medium Nessus Plugin ID 10934
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote FTP server is prone to a denial of service attack.


It was possible to make the remote FTP server crash by sending the command 'STAT *?AAAAA....AAAAA'.

There is a bug in certain versions of Microsoft's FTP server that can be exploited in this fashion. Other FTP servers may also react adversely to such a string. An attacker may leverage this issue to crash the affected service and deny usage to legitimate users.


Microsoft has released a set of patches for IIS 4.0, 5.0, and 5.1.

See Also

Plugin Details

Severity: Medium

ID: 10934

File Name: msftp_dos.nasl

Version: 1.52

Type: remote

Family: FTP

Published: 4/10/2002

Updated: 11/15/2018

Dependencies: ftpserver_detect_type_nd_version.nasl, ftp_anonymous.nasl, ftp_kibuv_worm.nasl, iis_asp_overflow.nasl

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:2.3:a:microsoft:internet_information_server:*:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*

Required KB Items: Settings/ParanoidReport

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/10/2002

Reference Information

CVE: CVE-2002-0073

BID: 4482

MSFT: MS02-018

MSKB: 319733