Check Point Firewall-1 3.0/4.0 Authentication User information disclosure

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.8 | $0-$5k | 0.00 |
Summary
A vulnerability identified as problematic has been detected in Check Point Firewall-1 3.0/4.0. This issue affects some unknown processing of the component Authentication. Performing a manipulation results in information disclosure (User). This vulnerability was named CVE-2000-1032. In addition, an exploit is available. You should upgrade the affected component.
Details
A vulnerability was found in Check Point Firewall-1 3.0/4.0 (Firewall Software). It has been classified as problematic. This affects some unknown functionality of the component Authentication. The manipulation with an unknown input leads to a information disclosure vulnerability (User). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:
The client authentication interface for Check Point Firewall-1 4.0 and earlier generates different error messages for invalid usernames versus invalid passwords, which allows remote attackers to identify valid usernames on the firewall.
The weakness was presented 11/01/2000 by Ryan Gray (FIRST) (Website). The advisory is shared at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2000-1032. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but an exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.
After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 5000 (FireWall-1 Login Access Enabled).
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (5816), SecurityFocus (BID 1890†), OSVDB (1632†) and Vulnerability Center (SBV-4571†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.checkpoint.com/
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 |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 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: 🔍
Exploiting
Name: UserClass: Information disclosure / User
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Proof-of-Concept
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Exploit Delay Time: 🔍
Timeline
11/01/2000 🔍11/01/2000 🔍
11/01/2000 🔍
11/01/2000 🔍
12/11/2000 🔍
02/21/2003 🔍
06/20/2004 🔍
06/30/2014 🔍
10/11/2025 🔍
Sources
Vendor: checkpoint.comAdvisory: archives.neohapsis.com
Researcher: Ryan Gray (FIRST)
Status: Confirmed
CVE: CVE-2000-1032 (🔍)
GCVE (CVE): GCVE-0-2000-1032
GCVE (VulDB): GCVE-100-16053
X-Force: 5816
SecurityFocus: 1890 - Checkpoint Firewall-1 Valid Username Vulnerability
OSVDB: 1632 - Check Point FireWall-1 Valid Username Information Disclosure
Vulnerability Center: 4571 - Check Point Firewall-1 <= 4.0 Allows Brute Force Attack, Medium
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/30/2014 18:04Updated: 10/11/2025 23:32
Changes: 06/30/2014 18:04 (62), 05/22/2019 11:53 (5), 10/11/2025 23:32 (20)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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