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Security Bulletin: IBM Lotus Quickr for Domino ActiveX control buffer overflow vulnerability (CVE-2013-6748/6749)

Security Bulletin


A security vulnerability exists in the Lotus Quickr for Domino ActiveX control shipped by Lotus Quickr for Domino. This vulnerability could allow remote attackers to execute arbitrary code on installations of Lotus Quickr for Domino when the control is invoked as ActiveX by Microsoft Internet Explorer.

Vulnerability Details

It is possible for an attacker to compromise the ActiveX control used within Lotus Quickr for Domino to remotely execute arbitrary code by instantiating this control from Microsoft Internet Explorer.

CVEID: CVE-2013-6748
CVSS Base Score: 7.5
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVEID: CVE-2013-6749
CVSS Base Score: 7.5
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

Affected Products and Versions

Lotus Quickr for Domino 8.5.1


The following Fix Packs contain the fix for this issue:
Lotus Quickr for Domino 8.5.1 - FixPack and

These Fix Packs are available on IBM Fix Central via IBM Support Portal:

Workarounds and Mitigations

Disable the use of the vulnerable ActiveX control within Internet Explorer.

Note: This solution contains information about modifying the Microsoft operating system registry. Before making any modifications with the Microsoft Registry Editor, it is strongly recommended that you make a backup of the existing registry. For more information about how to back up the registry refer to Microsoft Knowledge Base article 256986.

The vulnerable ActiveX control can be disabled in Internet Explorer by manually setting the kill bit. Complete the following steps to set the kill bit on the machine where Quickr for Domino is installed:

    1. Start the Microsoft Windows Registry Editor (regedit)
    2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveXCompatibility
    3. Add a new Key:
    4. Select that Key and create a new DWORD value named:
      Compatibility Flags
    5. Set the Compatibility Flags value to:
    6. Exit the Registry Editor.
    7. Restart Internet Explorer.


    None known. Apply the workaround.

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The vulnerability was reported to IBM by working with HP's Zero Day Initiative

Related information

Change History

23 January 2014 - Original Copy Published
24 January 2014 - Links updated

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document information

More support for: Lotus End of Support Products
Lotus Quickr for Domino

Software version: 8.5.1

Operating system(s): AIX, IBM i, Linux, Solaris, Windows

Reference #: 1662653

Modified date: 24 January 2014