CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.7 | $0-$5k | 0.00 |
A vulnerability was found in Xen (Virtualization Software) (the affected version unknown). It has been declared as critical. Affected by this vulnerability is an unknown part of the component SYSCALL Singlestep Exception Handler. 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 summary by CVE is:
Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.
The bug was discovered 12/19/2016. The weakness was published 12/19/2016 as XSA-204 as confirmed security advisory (Website). It is possible to read the advisory at xenbits.xen.org. This vulnerability is known as CVE-2016-10013 since 12/19/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 96522 (OracleVM 3.2 : xen (OVMSA-2017-0009)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family OracleVM Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276311 (Fedora Security Update for xen (FEDORA-2016-92e3ea2d1b)).
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 vulnerability database at Tenable (96522). Similar entry is available at 94629.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 96522
Nessus Name: OracleVM 3.2 : xen (OVMSA-2017-0009)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 870220
OpenVAS Name: Fedora Update for xen FEDORA-2016-92e3ea2d1b
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
12/19/2016 🔍12/19/2016 🔍
12/19/2016 🔍
12/19/2016 🔍
12/19/2016 🔍
12/19/2016 🔍
12/20/2016 🔍
01/16/2017 🔍
01/26/2017 🔍
07/12/2019 🔍
Sources
Advisory: XSA-204Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-10013 (🔍)
OVAL: 🔍
SecurityTracker: 1037491
SecurityFocus: 94963 - Xen CVE-2016-10013 Privilege Escalation Vulnerability
See also: 🔍
Entry
Created: 12/20/2016 16:27Updated: 07/12/2019 18:09
Changes: 12/20/2016 16:27 (76), 07/12/2019 18:09 (7)
Complete: 🔍
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