Cisco VPN 30xx Concentrator up to 3.6.7 SSH Service denial of service

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

Summaryinfo

A vulnerability described as problematic has been identified in Cisco VPN 30xx Concentrator up to 3.6.7. This vulnerability affects unknown code of the component SSH Service. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2003-0259. No exploit exists.

Detailsinfo

A vulnerability has been found in Cisco VPN 30xx Concentrator up to 3.6.7 (Network Encryption Software) and classified as problematic. This vulnerability affects an unknown code block of the component SSH Service. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Cisco VPN 3000 series concentrators and Cisco VPN 3002 Hardware Client 2.x.x through 3.6.7 allows remote attackers to cause a denial of service (reload) via a malformed SSH initialization packet.

The weakness was disclosed 05/27/2003 as confirmed advisory (CERT.org). The advisory is shared for download at kb.cert.org. This vulnerability was named CVE-2003-0259 since 05/07/2003. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 11594 (Cisco VPN 3000 Series Multiple Vulnerabilities (CSCdea77143, CSCdz15393, CSCdt84906)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l.

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 (11955), Tenable (11594), SecurityFocus (BID 7522†) and Vulnerability Center (SBV-3932†). The entries VDB-20451 and VDB-20453 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

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

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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 11594
Nessus Name: Cisco VPN 3000 Series Multiple Vulnerabilities (CSCdea77143, CSCdz15393, CSCdt84906)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/07/2003 🔍
05/07/2003 +0 days 🔍
05/07/2003 +0 days 🔍
05/07/2003 +0 days 🔍
05/27/2003 +20 days 🔍
05/27/2003 +0 days 🔍
03/08/2004 +286 days 🔍
08/11/2014 +3808 days 🔍
01/21/2025 +3816 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2003-0259 (🔍)
GCVE (CVE): GCVE-0-2003-0259
GCVE (VulDB): GCVE-100-20452
CERT: 🔍
X-Force: 11955 - Cisco VPN 3000 series concentrators malformed SSH packet denial of service
SecurityFocus: 7522 - Cisco VPN Concentrator Malformed SSH Initialization Packet Denial Of Service Vulnerability
Vulnerability Center: 3932 - [cisco-sa-20030507-vpn3k] Cisco VPN 3000 Series Concentrators and Cisco VPN 3002 Hardware Client DoS, Medium

See also: 🔍

Entryinfo

Created: 08/12/2014 00:36
Updated: 01/21/2025 14:39
Changes: 08/12/2014 00:36 (67), 05/20/2019 12:47 (2), 01/21/2025 14:39 (17)
Complete: 🔍
Cache ID: 216::103

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