Executive Summary

Title IBM and Lenovo Access Support acpRunner ActiveX control fails to validate digital signatures
Name VU#570705 First vendor Publication 2007-08-14
Vendor VU-CERT Last vendor Modification 2007-08-23
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
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:N/I:P/A:P)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


Vulnerability Note VU#570705

IBM and Lenovo Access Support acpRunner ActiveX control fails to validate digital signatures


The IBM Lenovo Access Support acpRunner ActiveX control fails to validate digital signatures, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

The Access Support software package for IBM and Lenovo systems includes several ActiveX controls. This software package is also known as Automated Solutions. The acpRunner control, which is provided by AcpController.dll, provides several methods that can be used to download, extract, and run software from a remote server. The acpRunner ActiveX control fails to properly validate the signatures of downloaded software packages.

II. Impact

By 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 with the privileges of the user.

III. Solution

Apply an update

This issue is addressed in Automated Solutions fix pack 1. This update removes the vulnerable control and also provides an updated version of the acpRunner ActiveX control that properly validates signatures of the software packages it downloads.

This control also has been disabled via the kill bit in Microsoft Security Bulletin MS07-045.

Disable the acpRunner ActiveX control in Internet Explorer

The vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSID:

More information about how to set the kill bit is available in Microsoft Support Document 240797. Alternatively, the following text can be saved as a .REG file and imported to set the kill bit for this control:
    Windows Registry Editor Version 5.00

    [HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX Compatibility{E598AC61-4C6F-4F4D-877F-FAC49CA91FA3}]
    "Compatibility Flags"=dword:00000400
Disable ActiveX

Disabling ActiveX controls in the Internet Zone (or any zone used by an attacker) appears to prevent exploitation of this and other ActiveX vulnerabilities. Instructions for disabling ActiveX in the Internet Zone can be found in the "Securing Your Web Browser" document.

Systems Affected

VendorStatusDate Updated
IBM CorporationVulnerable25-Apr-2007




This vulnerability was reported by Will Dormann of CERT/CC.

This document was written by Will Dormann.

Other Information

Date Public08/14/2007
Date First Published08/14/2007 01:49:11 PM
Date Last Updated08/23/2007
CERT Advisory 
CVE NameCVE-2007-2240
Document Revision12

Original Source

Url : http://www.kb.cert.org/vuls/id/570705

CPE : Common Platform Enumeration

Hardware 1
Hardware 1

Open Source Vulnerability Database (OSVDB)

Id Description
39555 IBM Lenovo Access Support acpRunner ActiveX acpcontroller.dll / acpir.dll Dig...

Nessus® Vulnerability Scanner

Date Description
2007-08-14 Name : Arbitrary code can be executed on the remote host through the web client.
File : smb_nt_ms07-045.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-04-26 18:27:18
  • Multiple Updates
2015-05-08 13:28:06
  • Multiple Updates
2013-05-11 12:26:40
  • Multiple Updates