Cisco VPN Client up to 3.5 Tunnel privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco VPN Client up to 3.5. Affected by this issue is some unknown functionality of the component Tunnel Handler. The manipulation results in privileges management. This vulnerability is known as CVE-2002-1108. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cisco VPN Client up to 3.5 (Network Encryption Software). Affected is an unknown functionality of the component Tunnel Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality. CVE summarizes:

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with all tunnel mode, can be forced into acknowledging a TCP packet from outside the tunnel.

The bug was discovered 09/05/2002. The weakness was published 10/04/2002 with Cisco (Website). The advisory is shared for download at cisco.com. This vulnerability is traded as CVE-2002-1108. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 3.6(Rel) eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (10047), SecurityFocus (BID 5651†), OSVDB (8921†) and Vulnerability Center (SBV-11231†). Similar entries are available at VDB-19016, VDB-19017, VDB-19018 and VDB-19019. Once again VulDB remains the best source for vulnerability data.

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: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Privileges management
CWE: CWE-269 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: VPN Client 3.6(Rel)

Timelineinfo

09/05/2002 🔍
09/05/2002 +0 days 🔍
09/05/2002 +0 days 🔍
10/04/2002 +29 days 🔍
10/04/2002 +0 days 🔍
04/25/2006 +1299 days 🔍
07/30/2014 +3018 days 🔍
06/16/2019 +1782 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2002-1108 (🔍)
GCVE (CVE): GCVE-0-2002-1108
GCVE (VulDB): GCVE-100-19020
X-Force: 10047 - Cisco VPN Client TCP filter could leak sensitive information
SecurityFocus: 5651 - Cisco VPN Client TCP Filter Information Leakage Vulnerability
OSVDB: 8921 - Cisco - VPN Client Server - Information Leakage by TCP Filter
Vulnerability Center: 11231 - [cisco-sa-20020905-vpnclient-vulnerability] Cisco VPN Client w\\ Tunnel Mode Information Leakage, Low

See also: 🔍

Entryinfo

Created: 07/30/2014 12:49
Updated: 06/16/2019 18:53
Changes: 07/30/2014 12:49 (64), 06/16/2019 18:53 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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