Cisco AnyConnect Secure Mobility Client 4.2/4.3 on Windows INF File access control

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco AnyConnect Secure Mobility Client 4.2/4.3 on Windows. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component INF File Handler. The manipulation leads to access control. This vulnerability is known as CVE-2016-6369. Attacking locally is a requirement. There is no exploit available. It is recommended to upgrade the affected component. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability was found in Cisco AnyConnect Secure Mobility Client 4.2/4.3 on Windows (Network Encryption Software). It has been classified as critical. Affected is an unknown code block of the component INF File Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Cisco AnyConnect Secure Mobility Client before 4.2.05015 and 4.3.x before 4.3.02039 mishandles pathnames, which allows local users to gain privileges via a crafted INF file, aka Bug ID CSCuz92464.

The weakness was disclosed 08/24/2016 by Felix as cisco-sa-20160824-anyconnect / CSCuz92464 as confirmed advisory (Website). The advisory is available at tools.cisco.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2016-6369 since 07/26/2016. The exploitability is told to be easy. Local access is required to approach this attack. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project. The advisory points out:

A vulnerability in Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to install and execute an arbitrary executable file with privileges equivalent to the Microsoft Windows operating system SYSTEM account.

The vulnerability scanner Nessus provides a plugin with the ID 93382 (Cisco AnyConnect Secure Mobility Client 4.2.x < 4.2.5015.0 / 4.3.x < 4.3.2039.0 Privilege Escalation Vulnerability), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370117 (Cisco AnyConnect Secure Mobility Client Local Privilege Escalation Vulnerability). The advisory illustrates:

The vulnerability is due to incomplete input validation of path names and filenames of the file to be installed. An attacker could exploit this vulnerability by creating a modified INF file. An exploit could allow the attacker to execute commands on the underlying Microsoft Windows host with privileges equivalent to the SYSTEM account.

Upgrading to version 4.2.05015 or 4.3.02039 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93382) and SecurityFocus (BID 92625†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93382
Nessus Name: Cisco AnyConnect Secure Mobility Client 4.2.x < 4.2.5015.0 / 4.3.x < 4.3.2039.0 Privilege Escalation Vulnerability
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: AnyConnect Secure Mobility Client 4.2.05015/4.3.02039

Timelineinfo

07/26/2016 🔍
08/24/2016 +29 days 🔍
08/24/2016 +0 days 🔍
08/24/2016 +0 days 🔍
08/25/2016 +1 days 🔍
08/25/2016 +0 days 🔍
09/08/2016 +13 days 🔍
09/25/2024 +2939 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160824-anyconnect / CSCuz92464
Researcher: Felix
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2016-6369 (🔍)
GCVE (CVE): GCVE-0-2016-6369
GCVE (VulDB): GCVE-100-90942
SecurityFocus: 92625 - Cisco AnyConnect Secure Mobility Client CVE-2016-6369 Local Privilege Escalation Vulnerability
SecurityTracker: 1036697

Entryinfo

Created: 08/25/2016 15:23
Updated: 09/25/2024 02:40
Changes: 08/25/2016 15:23 (68), 04/03/2019 10:59 (12), 09/14/2022 10:17 (3), 09/25/2024 02:40 (16)
Complete: 🔍
Cache ID: 216:976:103

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