Cisco AnyConnect Secure Mobility Client up to 2.1 VPN Downloader input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco AnyConnect Secure Mobility Client up to 2.1. Affected by this issue is some unknown functionality of the component VPN Downloader. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2012-2494. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco AnyConnect Secure Mobility Client up to 2.1 (Network Encryption Software). Affected by this issue is an unknown function of the component VPN Downloader. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is integrity. CVE summarizes:

The VPN downloader implementation in the WebLaunch feature in Cisco AnyConnect Secure Mobility Client 2.x before 2.5 MR6 and 3.x before 3.0 MR8 does not compare the timestamp of offered software to the timestamp of installed software, which allows remote attackers to force a version downgrade by using (1) ActiveX or (2) Java components to offer signed code that corresponds to an older software release, aka Bug ID CSCtw48681.

The weakness was published 06/20/2012 by Cisco with Zero Day Initiative as cisco-sa-20120620-ac as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2012-2494 since 05/07/2012. 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 59819 (Cisco AnyConnect Secure Mobility Client VPN Downgrade), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120296 (Cisco AnyConnect Secure Mobility Client Multiple Vulnerabilities).

Upgrading to version 2.2 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11424.

The vulnerability is also documented in the databases at X-Force (76463), Tenable (59819), SecurityFocus (BID 54108†) and Vulnerability Center (SBV-35435†). Similar entries are available at VDB-5577, VDB-5916, VDB-5919 and VDB-61042. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 59819
Nessus Name: Cisco AnyConnect Secure Mobility Client VPN Downgrade
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: AnyConnect Secure Mobility Client 2.2
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

05/07/2012 🔍
06/20/2012 +44 days 🔍
06/20/2012 +0 days 🔍
06/20/2012 +0 days 🔍
06/20/2012 +0 days 🔍
06/27/2012 +7 days 🔍
07/02/2012 +5 days 🔍
03/23/2015 +994 days 🔍
12/04/2021 +2448 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20120620-ac
Researcher: Cisco
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2012-2494 (🔍)
GCVE (CVE): GCVE-0-2012-2494
GCVE (VulDB): GCVE-100-61040

IAVM: 🔍

X-Force: 76463
SecurityFocus: 54108 - Cisco AnyConnect Secure Mobility Client Downgrade Security Weaknesses
Vulnerability Center: 35435 - [cisco-sa-20120620-ac] Cisco AnyConnect Secure Mobility Client WebLaunch VPN Downloader Flaw Allows Downgrade Force, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/04/2021 08:55
Changes: 03/23/2015 16:50 (66), 04/14/2017 13:40 (13), 12/04/2021 08:55 (3)
Complete: 🔍
Cache ID: 216:642:103

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