CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
97.4%
There are multiple high risk security vulnerabilities with the Blueberry FlashBack ActiveX control shipped by IBM Rational Rhapsody for Windows V7.6 and earlier versions. Problem occurs outside Rhapsody when control is invoked as ActiveX by Microsoft Internet Explorer.
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CVE IDs:CVE-2011-1388, CVE-2011-1391, CVE-2011-1392
**Important Note:**FlashBack is a third-party control that may have been installed by other applications. If other applications are using FlashBack, you must also implement the workaround. You should contact the appropriate vendor or vendors whose applications also use FlashBack.
**Description:**It is possible for an attacker to compromise the Blueberry FlashBack ActiveX control (“BB FlashBack Recorder.dll”) used within Rational Rhapsody for Windows to remotely execute arbitrary code by instantiating this control from Microsoft Internet Explorer Web browsers.
Known methods of exploiting the vulnerabilities in this control include Start(), PauseAndSave(), InsertMarker(), InsertSoundToFBRAtMarker() and TestCompatibilityRecordMode().
For a remote attacker to exploit these vulnerabilities in Rhapsody releases, the following must be accomplished:
CVSS Base Score: 9.3
CVSS Temporal Score: For CVE-2011-1388, see <https://exchange.xforce.ibmcloud.com/vulnerabilities/71694> for the current score **CVSS Temporal Score:**For CVE-2011-1391, see <https://exchange.xforce.ibmcloud.com/vulnerabilities/71803> for the current score **CVSS Temporal Score:**For CVE-2011-1392, see <https://exchange.xforce.ibmcloud.com/vulnerabilities/71804> for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:M/Au:S/C:N/I:P/A:N)
Rational Rhapsody for Windows 7.5.x
Rational Rhapsody for Windows 7.6
Upgrade to Rational Rhapsody 7.6.1 or later.
Workarounds:
Option #1 - Disable the use of the vulnerable ActiveX control within Internet Explorer**.**
**
Option #2** - Disable ActiveXProperly securing your Web browser to limit ActiveX controls can help avoid this issue. Limiting the ActiveX controls would both notify the user, and force the user to take some action to allow the ActiveX functionality.
Note: The Firefox browser does not support ActiveX**controls. **
Option #1 - Disable the use of the vulnerable ActiveX control within InternetExplorer
Disclaimer
This solution contains information about modifying the system registry. Before making any modifications to the Microsoft Registry Editor, it is strongly recommended that you make a backup of the existing registry. For more information describing how to back up the registry, refer to Microsoft Knowledge Base article 256986
The vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit.
Execute the following steps to disable the vulnerable ActiveX control in Internet Explorer:
Note: The registry file contains the following entry (if you are not able to download the file at end of document):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{A3CD4BF9-EC17-47A4-833C-50A324D6FF35}] "Compatibility Flags"=dword:00000400
`[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility{A3CD4BF9-EC17-47A4-833C-50A324D6FF35}]
“Compatibility Flags”=dword:00000400
`
2. Double-click the CFM kill-bit.reg file.
You will be prompted with a dialog box asking:
“Are you sure you want to add the information in <path> to the registry?”
Click Yes
You will be prompted with another dialog where it confirms the successful addition of entries into registry
Click OK
More information about how to set the kill bit is available in Microsoft Support Document 240797.
Option #2 - Disable ActiveX Disabling all ActiveX controls in the Internet Zone (or any zone used by an attacker) can prevent exploitation of this and other ActiveX vulnerabilities, although it might lead to usability issues with sites that might require it.[_
http://securitywatch.eweek.com/browsers/how_to_disable_activex_controls_in_internet_explorer_1.html_](<http://securitywatch.eweek.com/browsers/how_to_disable_activex_controls_in_internet_explorer_1.html>)
Mitigation:
None
Vendor | Product | Version | CPE |
---|---|---|---|
ibm | rhapsody_design_manager | 7.5 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.0.1 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.0.1:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.1 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.1:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.1.1 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.1.1:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.2 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.2:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.2.1 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.2.1:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.3 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.3:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.3.1 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.3.1:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.3.2 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.3.2:*:*:*:*:*:*:* |
ibm | rhapsody_design_manager | 7.5.3.3 | cpe:2.3:a:ibm:rhapsody_design_manager:7.5.3.3:*:*:*:*:*:*:* |