Linux Foundation xen 3.0.3 xend access control

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7.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Foundation xen 3.0.3. Affected by this issue is some unknown functionality of the component xend. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2008-4405. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Linux Foundation xen 3.0.3 (Virtualization Software) and classified as critical. This vulnerability affects an unknown part of the component xend. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 12/18/2008. The weakness was published 10/03/2008 as Bug 464818 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2008-4405 since 10/03/2008. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 67782 (Oracle Linux 5 : xen (ELSA-2009-0003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117198 (CentOS Security Update for xen (CESA-2009:0003)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (45540), Exploit-DB (32446), Tenable (67782), SecurityFocus (BID 31499†) and OSVDB (48894†). Similar entries are available at VDB-45647 and VDB-44931. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
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Nessus ID: 67782
Nessus Name: Oracle Linux 5 : xen (ELSA-2009-0003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 880804
OpenVAS Name: CentOS Update for xen CESA-2009:0003 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

09/30/2008 🔍
09/30/2008 +0 days 🔍
10/01/2008 +1 days 🔍
10/03/2008 +2 days 🔍
10/03/2008 +0 days 🔍
10/03/2008 +0 days 🔍
12/18/2008 +76 days 🔍
01/08/2009 +21 days 🔍
01/12/2009 +4 days 🔍
07/12/2013 +1642 days 🔍
03/17/2015 +613 days 🔍
12/27/2024 +3573 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: Bug 464818
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-4405 (🔍)
GCVE (CVE): GCVE-0-2008-4405
GCVE (VulDB): GCVE-100-44320

OVAL: 🔍

X-Force: 45540
SecurityFocus: 31499 - Xen XenStore Domain Configuration Data Unsafe Storage Vulnerability
Secunia: 32064
OSVDB: 48894 - Xen xend xenstore directory tree denial of service
SecurityTracker: 1020955
Vulnerability Center: 20473 - XenSource Xen 3.0.3 /local/domain Xenstore Local DoS and Unsafe Operations Vulnerability, Medium
Vupen: ADV-2008-2709

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 12/27/2024 11:07
Changes: 03/17/2015 16:11 (77), 08/23/2019 17:14 (13), 12/27/2024 11:07 (20)
Complete: 🔍
Cache ID: 216::103

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