Cisco VPN 3000 Concentrator up to 3.5.4/3.6 Username denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco VPN 3000 Concentrator up to 3.5.4/3.6. Impacted is an unknown function. The manipulation of the argument Username leads to denial of service. This vulnerability is listed as CVE-2002-1101. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco VPN 3000 Concentrator up to 3.5.4/3.6 (Network Encryption Software) and classified as problematic. This issue affects an unknown functionality. The manipulation of the argument Username with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Cisco VPN 3000 Concentrator 2.2.x, 3.6(Rel), and 3.x before 3.5.5, allows remote attackers to cause a denial of service via a long user name.

The weakness was presented 10/04/2002 by Cisco Security with Cisco (Website). The advisory is shared at cisco.com. The identification of this vulnerability is CVE-2002-1101. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept.

Upgrading to version 3.5.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (10026), Exploit-DB (21770), SecurityFocus (BID 5620†) and Vulnerability Center (SBV-5940†). See VDB-19004, VDB-19005, VDB-19006 and VDB-19007 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: VPN 3000 Concentrator 3.5.5

Timelineinfo

01/01/1999 🔍
09/03/2002 +1341 days 🔍
10/04/2002 +31 days 🔍
10/04/2002 +0 days 🔍
11/23/2004 +781 days 🔍
07/29/2014 +3535 days 🔍
09/09/2024 +3694 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: Cisco Security
Organization: Cisco
Status: Not defined

CVE: CVE-2002-1101 (🔍)
GCVE (CVE): GCVE-0-2002-1101
GCVE (VulDB): GCVE-100-19013
X-Force: 10026
SecurityFocus: 5620 - Cisco VPN 3000 Series Concentrator Client Authentication Denial Of Service Vulnerability
Vulnerability Center: 5940 - [cisco-sa-20020903-vpn3k-vulnerability] DoS in Cisco VPN 3000 Concentrator via Long User Name, Low

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/29/2014 18:04
Updated: 09/09/2024 01:19
Changes: 07/29/2014 18:04 (59), 05/26/2019 09:21 (7), 09/09/2024 01:19 (17)
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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