Xen 4.4.x/4.5.x/4.6.x/4.7.x SVM access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

A vulnerability was found in Xen 4.4.x/4.5.x/4.6.x/4.7.x (Virtualization Software). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component SVM. 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.

The bug was discovered 11/22/2016. The weakness was published 11/22/2016 by Jan Beulich with SuSE as XSA-192 as confirmed security advisory (Website). The advisory is shared at xenbits.xen.org. The public release has been coordinated with the project team. This vulnerability is known as CVE-2016-9382 since 11/17/2016. The exploitation appears to be easy. An attack has to be approached locally. The requirement for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 900047 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276244 (Fedora Security Update for xen (FEDORA-2016-999e1a6927)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (900047), SecurityFocus (BID 94470†) and SecurityTracker (ID 1037341†). Similar entries are available at VDB-92454, VDB-92455, VDB-92462 and VDB-93307.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 900047
Nessus File: 🔍

OpenVAS ID: 703729
OpenVAS Name: Debian Security Advisory DSA 3729-1 (xen - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

11/17/2016 🔍
11/22/2016 +5 days 🔍
11/22/2016 +0 days 🔍
11/22/2016 +0 days 🔍
11/22/2016 +0 days 🔍
11/24/2016 +2 days 🔍
11/25/2016 +1 days 🔍
01/23/2017 +59 days 🔍
10/04/2022 +2080 days 🔍

Sourcesinfo

Advisory: XSA-192
Researcher: Jan Beulich
Organization: SuSE
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2016-9382 (🔍)
OVAL: 🔍

SecurityFocus: 94470 - Xen CVE-2016-9382 Privilege Escalation Vulnerability
SecurityTracker: 1037341

See also: 🔍

Entryinfo

Created: 11/25/2016 11:52 AM
Updated: 10/04/2022 02:11 PM
Changes: 11/25/2016 11:52 AM (69), 06/10/2019 06:27 AM (13), 10/04/2022 02:11 PM (3)
Complete: 🔍
Cache ID: 18:024:40

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