EType EServ 2.97 PASV resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in EType EServ 2.97. Affected is an unknown function of the component PASV Handler. This manipulation causes resource consumption. This vulnerability is tracked as CVE-2002-0221. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in EType EServ 2.97. Affected by this vulnerability is an unknown code of the component PASV Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

Etype Eserv 2.97 allows remote attackers to cause a denial of service (resource exhaustion) via a large number of PASV commands that consume ports 1024 through 5000, which prevents the server from accepting valid PASV.

The weakness was disclosed 05/16/2002 by Arne Vidstrom (Website). It is possible to read the advisory at iss.net. This vulnerability is known as CVE-2002-0221. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 27128 (Etype EServ Passive Mode Denial of Service Vulnerability).

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 (8020), SecurityFocus (BID 3983†) and Vulnerability Center (SBV-1631†). The entry VDB-18128 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/29/2002 🔍
05/16/2002 +107 days 🔍
05/16/2002 +0 days 🔍
05/16/2002 +0 days 🔍
08/10/2003 +451 days 🔍
07/11/2014 +3988 days 🔍
09/21/2025 +4090 days 🔍

Sourcesinfo

Advisory: iss.net
Researcher: Arne Vidstrom
Status: Not defined

CVE: CVE-2002-0221 (🔍)
GCVE (CVE): GCVE-0-2002-0221
GCVE (VulDB): GCVE-100-18127
X-Force: 8020
SecurityFocus: 3983 - Etype EServ Passive Mode Denial of Service Vulnerability
Vulnerability Center: 1631 - DoS in Etype Eserv 2.97 in PASV Mode via Multiple PASV Requests, Low

See also: 🔍

Entryinfo

Created: 07/11/2014 13:57
Updated: 09/21/2025 17:09
Changes: 07/11/2014 13:57 (55), 05/11/2019 10:41 (3), 09/21/2025 17:09 (18)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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