HP Online Support Services ActiveX DeleteSingleFile() arbitrary file deletion

Overview

The HP Online Support Services ActiveX control contains a method called DeleteSingleFile(). This may allow a remote, unauthenticated attacker to remove files from a vulnerable system.

Description

HP Services provides online product support services including HP Instant Support. The HPISDataManager.dll ActiveX control contains the insecure function DeleteSingleFile(), which can be exploited by a malicious attacker to remove files from a vulnerable system.

Note that the HP Support Services ActiveX control is locked to certain domains, such as hp.com. This means that an attacker would have to subvert the host name lookup methodology on a victim’s system or exploit a cross-site scripting vulnerability in one of the allowed domains to exploit this vulnerability.

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Impact

A remote, unauthenticated attacker could exploit this vulnerability to remove files from a vulnerable system.

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Solution

HP suggests to install HP Instant Support - v1.0.0.24 or later. For installation instructions, please visit the HP Support Document. However, limited testing has shown that this update does not change the behavior with respect to unsafe methods.

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From the HP Support Document:

The vulnerabilities can also be resolved by the following procedure:

_Set the kill bit for the vulnerable ActiveX control’s Class identifier (CLSID) {14C1B87C-3342-445F-9B5E-365FF330A3AC} . The kill bit is set by modifying the data value of the Compatibility Flags DWORD value for the CLSID of this ActiveX control to 0x00000400. This is explained in Microsoft’s article KB240797 or subsequent. http://support.microsoft.com/kb/240797 _

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Vendor Information

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Hewlett-Packard Company __ Affected

Updated: June 06, 2008

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

From the HP Support Document:

The vulnerabilities can also be resolved by the following procedure:

_Set the kill bit for the vulnerable ActiveX control’s Class identifier (CLSID) {14C1B87C-3342-445F-9B5E-365FF330A3AC} . The kill bit is set by modifying the data value of the Compatibility Flags DWORD value for the CLSID of this ActiveX control to 0x00000400. This is explained in Microsoft’s article KB240797 or subsequent. http://support.microsoft.com/kb/240797 _

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23857539 Feedback>).

CVSS Metrics

Group	Score	Vector
Base	0	AV:–/AC:–/Au:–/C:–/I:–/A:–
Temporal	0	E:ND/RL:ND/RC:ND
Environmental	0	CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND

References

• <http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01422264&gt;
• <http://www.csis.dk/dk/forside/CSIS-RI-0003.pdf&gt;

Acknowledgements

Hewlett-Packard credits Dennis Rand of CSIS Security Research and Intelligence for discovering this vulnerability.

This document was written by Joseph Pruszynski and Will Dormann.

Other Information

CVE IDs:	CVE-2007-5604, CVE-2007-5605, CVE-2007-5606, CVE-2007-5607, CVE-2007-5608, CVE-2007-5610, CVE-2008-0952, CVE-2008-0953
Severity Metric:	3.51 Date Public: