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
96.9%
The Trend Micro HouseCall ActiveX control contains a vulnerability that can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
The Trend Micro HouseCall ActiveX control (Housecall_ActiveX.dll
) contains a โuse-after-freeโ vulnerability. Using a web page containing a specially crafted call to notifyOnLoadNative()
, an attacker can write to heap memory and potentially execute arbitrary code. Further details are available from Secunia.
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.
Install updated version of HouseCall ActiveX control
According to Trend Micro [Hot Fix] B1285, sites running HouseCall should โRequest the HouseCall 6.6 Hot Fix Build 1285 file from Trend Micro Technical Support.โ
Trend Micro [Hot Fix] B1285 states that โThe public HouseCall Server 6.6 has been patched.โ Examination of the free online HouseCall web site (as of 2008-12-24) shows that visitors are directed to a URL that indicates HouseCall version 6.5 and provided with a vulnerable version (6.51.0.1028) of the ActiveX control. According to Secunia, users should remove existing versions of the control and install version 6.6.0.1285 from <http://prerelease.trendmicro-europe.com/hc66/launch/>.
Disable the HouseCall ActiveX control in Internet Explorer
The vulnerable ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSIDs:
{215B8138-A3CF-44c5-803F-8226143CFC0A}
{6E5A37BF-FD42-463A-877C-4EB7002E68AE}
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\{215B8138-A3CF-44c5-803F-8226143CFC0A}]
"Compatibility Flags"=dword:00000400
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{6E5A37BF-FD42-463A-877C-4EB7002E68AE}]
"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 โSecuring Your Web Browserโ document.
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Updated: December 24, 2008
Affected
We have not received a statement from the vendor.
Please see Trend Micro [Hot Fix] B1285 and Secunia.
Group | Score | Vector |
---|---|---|
Base | 0 | AV:โ/AC:โ/Au:โ/C:โ/I:โ/A:โ |
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) |
This vulnerability was reported by Alin Rad Pop of Secunia Research.
This document was written by Art Manion.
CVE IDs: | CVE-2008-2435 |
---|---|
Severity Metric: | 9.69 Date Public: |