Vulnerability CVE-2007-5633
Published: 2007-10-23   Modified: 2012-02-12

Description:
Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, allows local users to read or write arbitrary MSRs, and gain privileges and load unsigned drivers, via the (1) IOCTL_RDMSR 0x9C402438 and (2) IOCTL_WRMSR 0x9C40243C IOCTLs to \Device\speedfan, as demonstrated by an IOCTL_WRMSR action on MSR_LSTAR.

Type:

CWE-DesignError

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Almico -> Speedfan 

 References:
http://www.securityfocus.com/bid/26123
http://www.reversemode.com/index.php?option=com_content&task=view&id=42&Itemid=1
http://www.bugtrack.almico.com/view.php?id=987
http://osvdb.org/41842
http://xforce.iss.net/xforce/xfdb/37298
http://secunia.com/advisories/27312
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