VDB-17236 · CVE-2001-0631 · XFDB 6192

Centrinity Firstclass 5.50 Spam Filter from privileges management

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Centrinity Firstclass 5.50. Affected is an unknown function of the component Spam Filter. Executing a manipulation of the argument from with the input <@> can lead to privileges management. This vulnerability is handled as CVE-2001-0631. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Centrinity Firstclass 5.50. This vulnerability affects some unknown functionality of the component Spam Filter. The manipulation of the argument from with the input value <@> leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect integrity. CVE summarizes:

Centrinity First Class Internet Services 5.50 allows for the circumventing of the default 'spam' filters via the presence of '<@>' in the 'From:' field, which allows remote attackers to send spoofed email with the identity of local users.

The weakness was released 08/22/2001 by Mattias as not defined posting (Bugtraq). The advisory is shared for download at archives.neohapsis.com. This vulnerability was named CVE-2001-0631. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (6192) and SecurityFocus (BID 2423†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Centrinity

Name

Firstclass

Version

5.50

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/21/2001 🔍
08/22/2001 +182 days 🔍
08/22/2001 +0 days 🔍
07/08/2014 +4703 days 🔍
03/23/2026 +4276 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Mattias
Status: Not defined

CVE: CVE-2001-0631 (🔍)
GCVE (CVE): GCVE-0-2001-0631
GCVE (VulDB): GCVE-100-17236
X-Force: 6192 - Centrinity FirstClass email spoofing
SecurityFocus: 2423 - Centrinity FirstClass Local User Mail Spoofing Vulnerability

Entryinfo

Created: 07/08/2014 15:11
Updated: 03/23/2026 15:56
Changes: 07/08/2014 15:11 (50), 06/01/2018 10:50 (6), 03/23/2026 15:56 (17)
Complete: 🔍
Cache ID: 216::103