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CVE-2008-4405

7.2 · HIGH

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…

Published Oct 3, 2008citrixCWE-264EPSS 1.04%

Overview

CVE-2008-4405 is a high-severity vulnerability affecting citrix xen. It was published on October 3, 2008 and has a CVSS 2.0 base score of 7.2 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from citrix. Update xen to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Reflists.opensuse.org/opensuse-security-announce/2009-09/msg00001.htmlReflists.xensource.com/archives/html/xen-devel/2008-09/msg00992.htmlReflists.xensource.com/archives/html/xen-devel/2008-09/msg00994.htmlRefopenwall.com/lists/oss-security/2008/09/30/6Refsecunia.com/advisories/32064Refwww.mandriva.com/security/advisories?name=MDVSA-2009:016Refwww.openwall.com/lists/oss-security/2008/10/04/3Refwww.redhat.com/support/errata/RHSA-2009-0003.htmlRefwww.securityfocus.com/bid/31499Refwww.securitytracker.com/id?1020955

How CyberStrike helps

Frequently asked questions

What is CVE-2008-4405?

CVE-2008-4405 is a high-severity vulnerability affecting citrix xen. It was published on October 3, 2008 and has a CVSS 2.0 base score of 7.2 (HIGH).

How severe is CVE-2008-4405?

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-4405?

Check the references section for vendor advisories and patches from citrix. Update xen to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2008-4405?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-4405 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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