Microsoft HeartbeatCtl ActiveX control buffer overflow

microsoft-heartbeatctl-bo (41940)

High Risk

Description:

Microsoft HeartbeatCtl ActiveX control is vulnerable to a buffer overflow. By persuading a victim to visit a specially-crafted Web page that passes an overly long string to the Host parameter, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of the victim or cause the victim's browser to crash.

*CVSS:

Base Score:	9.3
Access Vector:	Network
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete
Temporal Score:	7.5
Exploitability:	Unproven
Remediation Level:	Workaround
Report Confidence:	Confirmed

Consequences:

Gain Access

Remedy:

Refer to MS07-069 for patch, upgrade or suggested workaround information. See References.

References:

• MS07-069: Microsoft Security Bulletin MS07-069 - Critical.
• BID-28882: Microsoft 'HeartbeatCtl' ActiveX Control Remote Buffer Overflow Vulnerability
• CVE-2007-6255: Buffer overflow in the Microsoft HeartbeatCtl ActiveX control in HRTBEAT.OCX allows remote attackers to execute arbitrary code via the Host argument to an unspecified method.
• OSVDB ID: 44652: Microsoft HeartbeatCtl HRTBEAT.OCX ActiveX Unspecified Method Host Argument Overflow
• US-CERT VU#570089: Microsoft HeartbeatCtl ActiveX control buffer overflow

Platforms Affected:

• Microsoft HeartbeatCtl ActiveX Control

Reported:

Apr 21, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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