Executive Summary
Summary | |
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Title | Cisco AnyConnect Clientless SSL VPN Portforwarder ActiveX control buffer overflow |
Informations | |||
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Name | VU#339177 | First vendor Publication | 2012-03-14 |
Vendor | VU-CERT | Last vendor Modification | 2012-03-14 |
Severity (Vendor) | N/A | Revision | M |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 9.3 | Attack Range | Network |
Cvss Impact Score | 10 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Vulnerability Note VU#339177Cisco AnyConnect Clientless SSL VPN Portforwarder ActiveX control buffer overflowOverviewThe Cisco AnyConnect ActiveX control contains a buffer overflow vulnerability, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.I. DescriptionCisco AnyConnect is an SSL VPN solution that is commonly initiated through use of a web browser. When Internet Explorer is used, the AnyConnect VPN server provides an ActiveX control that downloads and installs the AnyConnect client software. One of the components provided by Cisco AnyConnect for use with Internet Explorer is an ActiveX control called the "CISCO Portforwarder Control." This ActiveX control is provided by the file ciscopf.ocx. The Cisco Portforwarder ActiveX control contains a buffer overflow in its initialization parameters. We have confirmed that version 1.0.1.8 of the Portforwarder control is vulnerable. Previous versions may also be affected.II. ImpactBy convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker may be able to execute arbitrary code.III. SolutionApply an updateThis issue is addressed in Cisco Security Advisory cisco-sa-20120314-asaclient. Please note that updating a Cisco ASA device with the fixed software will not protect systems that have already downloaded the vulnerable control. Please also consider the following workarounds:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{B8E73359-3422-4384-8D27-4EA1B4C01232}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{B8E73359-3422-4384-8D27-4EA1B4C01232}] "Compatibility Flags"=dword:00000400 Vendor Information
Referenceshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120314-asaclient CreditThis vulnerability was reported by Will Dormann of the CERT/CC This document was written by Will Dormann. Other Information
This product is provided subject to the Notification as indicated here: http://www.us-cert.gov/legal.html#notify |
Original Source
Url : http://www.kb.cert.org/vuls/id/339177 |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
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2012-05-09 | Name : The remote Windows host is missing an update that disables a selected ActiveX... File : smb_kb_2695962.nasl - Type : ACT_GATHER_INFO |
2012-03-28 | Name : The remote Windows host has an ActiveX control with a buffer overflow vulnera... File : cisco_cscopf_activex.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2014-02-17 12:07:44 |
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