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
88.5%
The Linksys WVC54GC NetCamPlayerWeb11gv2 ActiveX control contains a stack buffer overflow, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
The Linksys WVC54GC wireless video camera provides an ActiveX control called NetCamPlayerWeb11gv2, which is provided by the file NetCamPlayerWeb11gv2.ocx
. This ActiveX control contains a stack buffer overflow in the SetSource()
method.
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 vulnerability is addressed in WVC54GC firmware version 1.25. Please see the release notes for more details. Note that any client system that has installed the ActiveX control must connect to the camera and install the updated control.
Disable theNetCamPlayerWeb11gv2 ActiveX control in Internet Explorer
The vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSID:
{``D7208880-9B7A-43E1-AABB-8C888A5704F9``}
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\{``D7208880-9B7A-43E1-AABB-8C888A5704F9``}]
"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.
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Notified: August 15, 2008 Updated: December 05, 2008
Affected
Vulnerability 2: ActiveX Stack-Based Buffer Overflow
Description: long invalid arguments on ActiveX will cause overflow triggered
Solution: 2300 and 210 have no such issue. The method of passing arguments to ActiveX is changed.
The vendor has not provided us with any further information regarding this vulnerability.
This vulnerability is addressed in WVC54GC firmware version 1.25. Please see the release notes for more details. Note that any client system that has installed the ActiveX control must connect to the camera and install the updated control.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23639345 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
Thanks to Andre Protas of eEye for reporting this vulnerability, who in turn also credits Greg Linares of eEye.
This document was written by Will Dormann.
CVE IDs: | CVE-2008-4391 |
---|---|
Severity Metric: | 2.73 Date Public: |