Vulnerability Note VU#684883

CA Unicenter DSM ITRM Legends ActiveX integer overflow

Overview

The CA Unicenter DSM ITRM Legends ActiveX control contains an integer overflow vulnerability, which can allow a remote attacker to execute arbitrary code on a vulnerable system.

I. Description

CA Unicenter DSM ITRM Legends is an ActiveX control that is included with multiple CA products. This ActiveX control, which is provided by gui_cm_ctrls.ocx, contains an integer overflow vulnerability. According to the vendor, the following products are affected:

BrightStor ARCServe Backup for Laptops and Desktops r11.5
CA Desktop Management Suite r11.2 C2
CA Desktop Management Suite r11.2 C1
CA Desktop Management Suite r11.2a
CA Desktop Management Suite r11.2
CA Desktop Management Suite r11.1 (GA, a, C1)
Unicenter Desktop Management Bundle r11.2 C2
Unicenter Desktop Management Bundle r11.2 C1
Unicenter Desktop Management Bundle r11.2a
Unicenter Desktop Management Bundle r11.2
Unicenter Desktop Management Bundle r11.1 (GA, a, C1)
Unicenter Asset Management r11.2 C2
Unicenter Asset Management r11.2 C1
Unicenter Asset Management r11.2a
Unicenter Asset Management r11.2
Unicenter Asset Management r11.1 (GA, a, C1)
Unicenter Software Delivery r11.2 C2
Unicenter Software Delivery r11.2 C1
Unicenter Software Delivery r11.2a
Unicenter Software Delivery r11.2
Unicenter Software Delivery r11.1 (GA, a, C1)
Unicenter Remote Control r11.2 C2
Unicenter Remote Control r11.2 C1
Unicenter Remote Control r11.2a
Unicenter Remote Control r11.2
Unicenter Remote Control r11.1 (GA, a, C1)
CA Desktop and Server Management r11.2 C2
CA Desktop and Server Management r11.2 C1
CA Desktop and Server Management r11.2a
CA Desktop and Server Management r11.2
CA Desktop and Server Management r11.1 (GA, a, C1)

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

Apply updates, as specified in the CA Security Notice.

Disable the CA Unicenter DSM ITRM Legends ActiveX control in Internet Explorer

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

{E6239EB3-E0B0-46DA-A215-CFA9B3B740C5}

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{E6239EB3-E0B0-46DA-A215-CFA9B3B740C5}]
"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

Vendor	Status	Date Updated
Computer Associates	Vulnerable	8-May-2008

References

http://www.cert.org/tech_tips/securing_browser/
https://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=174256

Credit

Thanks to Greg Linares of eEye Digital Security for reporting this vulnerability.

This document was written by Will Dormann.

Other Information

Date Public	04/16/2008
Date First Published	05/08/2008 04:57:17 PM
Date Last Updated	05/19/2008
CERT Advisory
CVE Name	CVE-2008-1786
US-CERT Technical Alerts
Metric	9.48
Document Revision	12