CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
EPSS
Percentile
87.6%
The IBM Lenovo Access Support acpRunner ActiveX control fails to restrict access to its methods, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
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 restrict the web domains that can take these actions.
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.
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 restricts the web domains that can use the control.
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:
{E598AC61-4C6F-4F4D-877F-FAC49CA91FA3}
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_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX 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.
426737
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Notified: February 01, 2007 Updated: April 25, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Please apply Automated Solutions fix pack 1.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23426737 Feedback>).
Notified: March 13, 2007 Updated: April 25, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Please apply Automated Solutions fix pack 1.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23426737 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
This vulnerability was reported by Will Dormann of CERT/CC.
This document was written by Will Dormann.
CVE IDs: | CVE-2007-2929 |
---|---|
Severity Metric: | 2.89 Date Public: |