Vulnerability CVE-2008-5716


Published: 2008-12-24   Modified: 2012-02-13

Description:
xend in Xen 3.3.0 does not properly restrict a guest VM's write access within the /local/domain xenstore directory tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue exists because of erroneous set_permissions calls in the fix for CVE-2008-4405.

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

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
Citrix -> XEN 

 References:
http://xforce.iss.net/xforce/xfdb/47668
http://www.securityfocus.com/bid/31499
http://openwall.com/lists/oss-security/2008/12/19/1
http://lists.xensource.com/archives/html/xen-devel/2008-12/msg00847.html
http://lists.xensource.com/archives/html/xen-devel/2008-12/msg00846.html
http://lists.xensource.com/archives/html/xen-devel/2008-12/msg00845.html
http://lists.xensource.com/archives/html/xen-devel/2008-12/msg00842.html

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