CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

A vulnerability was found in Microsoft Windows NT 4.0 SP4 (Operating System). It has been rated as critical. This issue affects some unknown processing of the component NT Hash Value Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.

The weakness was shared 02/08/1999 as Q214840 as confirmed knowledge base article (Website). The advisory is shared at support.microsoft.com. The identification of this vulnerability is CVE-1999-0366. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 2000 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the vulnerability database at X-Force (1719). The entry 14487 is related to this item.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• NT 4.0 SP4

License

• commercial

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: Windows 2000

Timelineinfo

02/08/1999 🔍
02/08/1999 +0 days 🔍
02/08/1999 +0 days 🔍
02/08/1999 +0 days 🔍
01/26/2003 +1448 days 🔍
06/20/2014 +4163 days 🔍
05/08/2019 +1783 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: Q214840
Status: Confirmed

CVE: CVE-1999-0366 (🔍)
X-Force: 1719
Vulnerability Center: 719 - [MS99-004] Windows NT 4.0 SP4 Allows Network Shares Access Using Blank Password, Medium
SecurityFocus: 227 - NT Blank Password SP4 Vulnerability

See also: 🔍

Entryinfo

Created: 06/20/2014 16:35
Updated: 05/08/2019 11:11
Changes: 06/20/2014 16:35 (61), 05/08/2019 11:11 (2)
Complete: 🔍

Discussion

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