Citrix XenServer 6.0.2 Grand Table GNTTABOP_swap_grant_ref access control

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CVSS Meta Temp Score
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5.1$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Citrix XenServer 6.0.2 (Virtualization Software). Affected is the function GNTTABOP_swap_grant_ref of the component Grand Table. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 09/05/2012 as 2012-09/msg00004 as confirmed posting (Maillist). The advisory is available at lists.xen.org. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2012-3516 since 06/14/2012. Local access is required to approach this attack. A authentication is necessary for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 370049 (Citrix XenServer Security Update (CTX134708)).

Applying the patch xsa18 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 SecurityFocus (BID 55411), X-Force (78271), Secunia (SA50472), SecurityTracker (ID 1027485) and Vulnerability Center (SBV-37242). The entries 5876, 5927, 6105 and 6107 are related to this item.

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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍

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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

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Exposure Time: 🔍

Patch: xsa18

Timelineinfoedit

06/14/2012 🔍
09/05/2012 +83 days 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
09/05/2012 +0 days 🔍
09/10/2012 +5 days 🔍
11/15/2012 +66 days 🔍
11/23/2012 +8 days 🔍
08/15/2016 +1361 days 🔍
04/21/2017 +249 days 🔍

Sourcesinfoedit

Vendor: https://www.citrix.com/

Advisory: 2012-09/msg00004
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-3516 (🔍)
SecurityFocus: 55411 - Xen 'GNTTABOP_swap_grant_ref' CVE-2012-3516 Denial of Service Vulnerability
Secunia: 50472 - Xen Multiple Denial of Service and Privilege Escalation Vulnerabilities, Less Critical
X-Force: 78271
SecurityTracker: 1027485 - Xen GNTTABOP_swap_grant_ref() Validation Flaw Lets Local Guest Operating Systems Cause Denial of Service Conditions on the Host Operating System
Vulnerability Center: 37242 - Citrix XenServer, NetScaler SDX and XenSource Xen Local DoS and Privilege Escalation - CVE-2012-3516, Medium
OSVDB: 85201

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Entryinfoedit

Created: 09/10/2012 02:15 PM
Updated: 04/21/2017 11:32 AM
Changes: (4) source_securityfocus_date source_securityfocus_class source_sectracker_date source_sectracker_cause
Complete: 🔍
Committer: olku

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