Netscape Enterprise Server 4.0/4.1 HTTP Basic Authentication IDN improper authentication

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.

A vulnerability, which was classified as critical, was found in Netscape Enterprise Server 4.0/4.1 (Web Server). This affects an unknown function of the component HTTP Basic Authentication IDN Handler. The manipulation with an unknown input leads to a weak authentication vulnerability. CWE is classifying the issue as CWE-287. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 12/31/2002 by Richard Brain with ProCheckUp as confirmed advisory ( It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2002-1654 since 03/29/2005. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

It is possible to mitigate the problem by adding an authentication mechanism.

The vulnerability is also documented in the databases at SecurityFocus (BID 3831), X-Force (7845), SecurityTracker (ID 1003157) and Vulnerability Center (SBV-5834). The entry 19300 is related to this item.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍



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

NVD Base Score: 🔍


Class: Weak authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfoedit

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


Recommended: Authentication
Status: 🔍

0-Day Time: 🔍
ISS Proventia IPS: 🔍


01/08/2002 🔍
01/08/2002 +0 days 🔍
01/09/2002 +1 days 🔍
12/31/2002 +356 days 🔍
12/31/2002 +0 days 🔍
11/22/2004 +692 days 🔍
03/29/2005 +127 days 🔍
08/04/2014 +3415 days 🔍
04/18/2016 +623 days 🔍
05/26/2019 +1133 days 🔍



Researcher: Richard Brain
Organization: ProCheckUp
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2002-1654 (🔍)
SecurityFocus: 3831 - Netscape Enterprise Web Server Brute Force Authentication Attacks Vulnerability
X-Force: 7845 - Netscape Enterprise Server and iPlanet Web Server ?wp-force-auth command brute force attack
SecurityTracker: 1003157
Vulnerability Center: 5834 - Brute Force Attack in Netscape Enterprise Server 3.x and iPlanet Web Server 4.x via URL, Low

See also: 🔍


Created: 08/04/2014 11:39 AM
Updated: 05/26/2019 06:46 AM
Changes: (12) advisory_person_name advisory_company_name advisory_confirm_url advisory_disputed countermeasure_name source_cve_assigned source_securityfocus_date source_securityfocus_class source_sectracker source_sectracker_date source_sectracker_cause source_xforce
Complete: 🔍


No comments yet. Please log in to comment.

Do you want to use VulDB in your project?

Use the official API to access entries easily!