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
97.1%
The RIM BlackBerry Application Web Loader ActiveX control contains a stack buffer overflow, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
The RIM BlackBerry Application Web Loader is an ActiveX control that is used to load applications onto a BlackBerry device using a PC and Internet Explorer. After the BlackBerry Application Web Loader ActiveX control is used to load software onto a BlackBerry device, the ActiveX control remains on the PC. The ActiveX control is marked βSafe for Scriptingβ and is scriptable by web pages in any domain. The BlackBerry Application Web Loader ActiveX control, which is provided by AxLoader.ocx
or AxLoader.dll
, contains stack buffer overflows in the load()
and loadJad()
methods.
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. The attacker could also cause Internet Explorer (or the program using the WebBrowser control) to crash.
Apply an update
This issue is addressed in Microsoft Security Advisory 960715. This update sets the kill bit for the vulnerable ActiveX control. Developers and web site administrators should install and use the BlackBerry Application Web Loader 1.1 component. Note that installing this package will not register the new ActiveX control on the system automatically. The 1.1 version of the ActiveX control has a different CLSID than the vulnerable version of the control, so it is unaffected by the kill bit that was deployed as part of Microsoft Security Advisory 960715. Please see the BlackBerry Technical Solution KB16248 for more details.
Disable the BlackBerry Application Web Loader ActiveX control in Internet Explorer
The vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSID:
{4788DE08-3552-49EA-AC8C-233DA52523B9}
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\{4788DE08-3552-49EA-AC8C-233DA52523B9}]
"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 βSecuring Your Web Browserβ document.
131100
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Notified: August 20, 2008 Updated: February 10, 2009
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
This issue is addressed in Microsoft Security Advisory 960715. This update sets the kill bit for the vulnerable ActiveX control. Developers and web site administrators should install and use the BlackBerry Application Web Loader 1.1 component. Note that installing this package will not register the new ActiveX control on the system automatically. The 1.1 version of the ActiveX control has a different CLSID than the vulnerable version of the control, so it is unaffected by the kill bit that was deployed as part of Microsoft Security Advisory 960715. Please see the BlackBerry Technical Solution KB16248 for more details.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23131100 Feedback>).
Group | Score | Vector |
---|---|---|
Base | 0 | AV:β/AC:β/Au:β/C:β/I:β/A:β |
Temporal | 0 | E:Not Defined (ND)/RL:Not Defined (ND)/RC:Not Defined (ND) |
Environmental | 0 | CDP:Not Defined (ND)/TD:Not Defined (ND)/CR:Not Defined (ND)/IR:Not Defined (ND)/AR:Not Defined (ND) |
Thanks to Andre Protas and Greg Linares of eEye Research for reporting this vulnerability. The vulnerability was also independently discovered and reported by Chris Weber of Casaba Security.
This document was written by Will Dormann.
CVE IDs: | CVE-2009-0305 |
---|---|
Severity Metric: | 12.39 Date Public: |