Microsoft Windows NT 3.51/NT 4.0 WFTP Server Guest improper authentication

Summaryinfo

A vulnerability was found in Microsoft Windows NT 3.51/NT 4.0 and classified as critical. This impacts an unknown function of the component WFTP Server. The manipulation results in improper authentication (Guest). This vulnerability was named CVE-1999-0200. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Windows NT 3.51/NT 4.0 (Operating System). It has been classified as very critical. Affected is an unknown code of the component WFTP Server. The manipulation with an unknown input leads to a improper authentication vulnerability (Guest). CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Windows NT FTP server (WFTP) with the guest account enabled without a password allows an attacker to log into the FTP server using any username and password.

The weakness was presented 01/01/1999. This vulnerability is traded as CVE-1999-0200. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/23/2021).

The vulnerability scanner Nessus provides a plugin with the ID 10305 (WFTP Unpassworded Guest Account), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP.

Upgrading eliminates this vulnerability.It is possible to mitigate the weakness by firewalling tcp/21 (ftp). The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (39), Tenable (10305) and Vulnerability Center (SBV-389†). See VDB-13925 for similar entry. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• NT 3.51
• NT 4.0

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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