Citrix Xen up to 4.2.1 Oxenstored Daemon access control

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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Citrix Xen up to 4.2.1. Affected by this issue is some unknown functionality of the component Oxenstored Daemon. The manipulation results in access control. This vulnerability is reported as CVE-2013-0215. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Citrix Xen up to 4.2.1 (Connectivity Software). It has been classified as problematic. Affected is an unknown function of the component Oxenstored Daemon. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on availability. CVE summarizes:

oxenstored in Xen 4.1.x, Xen 4.2.x, and xen-unstable does not properly consider the state of the Xenstore ring during read operations, which allows guest OS users to cause a denial of service (daemon crash and host-control outage, or memory consumption) or obtain sensitive control-plane data by leveraging guest administrative access.

The weakness was disclosed 02/05/2013 as msg00000 as not defined mailinglist post (Website). The advisory is available at lists.xen.org. This vulnerability is traded as CVE-2013-0215 since 12/06/2012. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 64650 (Fedora 17 : xen-4.1.4-4.fc17 (2013-2002)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370047 (Citrix XenServer Security Update (CTX136540)).

Applying the patch xsa38 is able to eliminate this problem. The bugfix is ready for download at lists.xen.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (81832), Tenable (64650), SecurityFocus (BID 57742†), OSVDB (89853†) and Secunia (SA52055†). The entries VDB-7599, VDB-7603, VDB-7604 and VDB-7605 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 64650
Nessus Name: Fedora 17 : xen-4.1.4-4.fc17 (2013-2002)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 865902
OpenVAS Name: Fedora Update for xen FEDORA-2013-10136
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: xsa38

Timelineinfo

12/06/2012 🔍
02/05/2013 +61 days 🔍
02/05/2013 +0 days 🔍
02/05/2013 +0 days 🔍
02/05/2013 +0 days 🔍
02/05/2013 +0 days 🔍
02/11/2013 +6 days 🔍
03/07/2013 +24 days 🔍
04/09/2013 +33 days 🔍
05/04/2021 +2947 days 🔍

Sourcesinfo

Vendor: citrix.com

Advisory: msg00000
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-0215 (🔍)
GCVE (CVE): GCVE-0-2013-0215
GCVE (VulDB): GCVE-100-7602
X-Force: 81832
SecurityFocus: 57742 - Xen OXenstored Daemon CVE-2013-0215 Local Denial of Service Vulnerability
Secunia: 52055 - Xen oxenstored Xenbus Ring State Handling Vulnerability, Not Critical
OSVDB: 89853
Vulnerability Center: 39046 - XenSource Xen and Citrix XenServer Local DoS via Leveraging of Guest Administrative Access, Low

See also: 🔍

Entryinfo

Created: 02/11/2013 09:15
Updated: 05/04/2021 14:28
Changes: 02/11/2013 09:15 (79), 04/26/2017 23:49 (3), 05/04/2021 14:28 (2)
Complete: 🔍
Committer: olku
Cache ID: 216::103

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