Cisco VPN 3000 Concentrator up to 3.6(Rel) User Authentication improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco VPN 3000 Concentrator up to 3.6(Rel). It has been declared as critical. The impacted element is an unknown function of the component User Authentication. Such manipulation leads to improper authentication. This vulnerability is traded as CVE-2002-1092. There is no exploit available.

Detailsinfo

A vulnerability was found in Cisco VPN 3000 Concentrator up to 3.6(Rel) (Network Encryption Software) and classified as critical. Affected by this issue is some unknown processing of the component User Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cisco VPN 3000 Concentrator 3.6(Rel) and earlier, and 2.x.x, when configured to use internal authentication with group accounts and without any user accounts, allows remote VPN clients to log in using PPTP or IPSEC user authentication.

The weakness was shared 10/04/2002 with Cisco (Website). The advisory is shared for download at cisco.com. This vulnerability is handled as CVE-2002-1092. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 11291 (Cisco VPN 3000 Concentrator PPTP/IPSEC Group Credential Authentication Bypass (CSCdv66718)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO, running in the context r and relying on port 161.

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 (10017), Tenable (11291), SecurityFocus (BID 5613†) and Vulnerability Center (SBV-2812†). The entries VDB-19005, VDB-19006, VDB-19007 and VDB-19008 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: Improper authentication
CWE: CWE-287
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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Nessus ID: 11291
Nessus Name: Cisco VPN 3000 Concentrator PPTP/IPSEC Group Credential Authentication Bypass (CSCdv66718)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/03/2002 🔍
10/04/2002 +31 days 🔍
10/04/2002 +0 days 🔍
10/04/2002 +0 days 🔍
03/01/2003 +148 days 🔍
10/30/2003 +243 days 🔍
07/29/2014 +3925 days 🔍
05/16/2019 +1752 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2002-1092 (🔍)
GCVE (CVE): GCVE-0-2002-1092
GCVE (VulDB): GCVE-100-19004
X-Force: 10017 - Cisco VPN 3000 concentrators could allow a remote attacker to bypass authentication
SecurityFocus: 5613 - Cisco Internal Group Authentication External Access Vulnerability
Vulnerability Center: 2812 - [cisco-sa-20020903-vpn3k-vulnerability] Cisco VPN 3000 Concentrator Unauthorized Login, Medium

See also: 🔍

Entryinfo

Created: 07/29/2014 17:58
Updated: 05/16/2019 16:49
Changes: 07/29/2014 17:58 (65), 05/16/2019 16:49 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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