Cisco VPN 3000 Concentrator up to 4.1.7.B HTTPS SSL denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco VPN 3000 Concentrator up to 4.1.7.B. This affects an unknown function of the component HTTPS SSL Handler. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2005-0943. The attack is possible to be carried out remotely. Moreover, an exploit is present. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco VPN 3000 Concentrator up to 4.1.7.B (Network Encryption Software). This affects an unknown functionality of the component HTTPS SSL Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Cisco VPN 3000 series Concentrator running firmware 4.1.7.A and earlier allows remote attackers to cause a denial of service (device reload or drop user connection) via a crafted HTTPS packet.

The bug was discovered 03/30/2005. The weakness was disclosed 03/30/2005 with Cisco (Website). The advisory is shared at cisco.com. This vulnerability is uniquely identified as CVE-2005-0943 since 04/03/2005. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

Upgrading to version 4.1.7.B eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the databases at X-Force (19903), SecurityFocus (BID 12948†), OSVDB (15155†), Secunia (SA14784†) and SecurityTracker (ID 1013609†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Vendor

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: VPN 3000 Concentrator 4.1.7.B
Patch: cisco.com

Timelineinfo

03/30/2005 🔍
03/30/2005 +0 days 🔍
03/30/2005 +0 days 🔍
03/30/2005 +0 days 🔍
03/30/2005 +0 days 🔍
03/30/2005 +0 days 🔍
03/30/2005 +0 days 🔍
03/31/2005 +1 days 🔍
04/03/2005 +2 days 🔍
04/04/2005 +1 days 🔍
04/18/2006 +379 days 🔍
07/02/2019 +4823 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: http://www.cisco.com
Organization: Cisco
Status: Confirmed

CVE: CVE-2005-0943 (🔍)
GCVE (CVE): GCVE-0-2005-0943
GCVE (VulDB): GCVE-100-1317
X-Force: 19903 - Cisco VPN 3000 Concentrator denial of service, Medium Risk
SecurityFocus: 12948 - Cisco VPN 3000 Concentrator Remote Denial of Service Vulnerability
Secunia: 14784 - Cisco VPN Concentrator 3000 Series HTTPS Packet Denial of Service, Less Critical
OSVDB: 15155 - Cisco VPN 3000 Series Concentrator Crafted SSL DoS
SecurityTracker: 1013609
Vulnerability Center: 11159 - [cisco-sa-20050330-vpn3k] Cisco VPN 3000 DoS via HTTPS Data, High

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

Entryinfo

Created: 04/04/2005 11:14
Updated: 07/02/2019 07:53
Changes: 04/04/2005 11:14 (87), 07/02/2019 07:53 (1)
Complete: 🔍
Cache ID: 216:458:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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