Vulnerability CVE-2008-4405
Published: 2008-10-03   Modified: 2012-02-12

Description:
xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest VM's write access within this 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 was originally reported as an issue in libvirt 0.3.3 and xenstore, but CVE is considering the core issue to be related to Xen.

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:
https://bugzilla.redhat.com/show_bug.cgi?id=464818
https://bugzilla.redhat.com/show_bug.cgi?id=464817
https://bugzilla.redhat.com/show_bug.cgi?id=464817
http://xenbits.xensource.com/staging/xen-3.3-testing.hg?rev/e0e17216ba70
http://www.vupen.com/english/advisories/2008/2709
http://www.securitytracker.com/id?1020955
http://www.securityfocus.com/bid/31499
http://www.openwall.com/lists/oss-security/2008/10/04/3
http://www.mandriva.com/security/advisories?name=MDVSA-2009:016
http://secunia.com/advisories/32064
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10627
http://openwall.com/lists/oss-security/2008/09/30/6
http://lists.xensource.com/archives/html/xen-devel/2008-09/msg00994.html
http://lists.xensource.com/archives/html/xen-devel/2008-09/msg00992.html
http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
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