Microsoft Windows NT 4.0 Messenger Service Long Username denial of service
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.8 | $0-$5k | 0.00 |
Summary
A vulnerability described as problematic has been identified in Microsoft Windows NT 4.0. Affected by this vulnerability is an unknown functionality of the component Messenger Service. Executing a manipulation as part of Long Username can lead to denial of service. This vulnerability is registered as CVE-1999-0224. Furthermore, an exploit is available. Upgrading the affected component is recommended.
Details
A vulnerability was found in Microsoft Windows NT 4.0 (Operating System). It has been declared as problematic. This vulnerability affects an unknown code block of the component Messenger Service. The manipulation as part of a Long Username leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect confidentiality. CVE summarizes:
Denial of service in Windows NT messenger service through a long username.
The weakness was published 07/23/1999 (Website). The advisory is shared for download at ciac.org. This vulnerability was named CVE-1999-0224. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.
It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.
Upgrading to version XP or 2000 eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (69), Exploit-DB (329), OSVDB (11473†) and Vulnerability Center (SBV-639†). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.microsoft.com/
- Product: https://www.microsoft.com/en-us/windows
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 4.8
VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| 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: 🔍
Exploiting
Class: Denial of serviceCWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Windows XP/2000
Timeline
04/01/1997 🔍07/23/1999 🔍
07/23/1999 🔍
01/05/2003 🔍
04/09/2004 🔍
06/21/2014 🔍
01/19/2025 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: ciac.org
Status: Confirmed
CVE: CVE-1999-0224 (🔍)
GCVE (CVE): GCVE-0-1999-0224
GCVE (VulDB): GCVE-100-14740
X-Force: 69
OSVDB: 11473 - Microsoft Windows NT Messenger Service Long Username DoS
Vulnerability Center: 639 - DoS in Windows NT Messenger Service via Long Username., High
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/21/2014 17:47Updated: 01/19/2025 22:05
Changes: 06/21/2014 17:47 (57), 05/08/2019 00:17 (6), 01/19/2025 22:05 (18)
Complete: 🔍
Cache ID: 216:877:103
Once again VulDB remains the best source for vulnerability data.
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