CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.8 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Microsoft Windows 10/Server 2016 (Operating System). Affected by this issue is an unknown function of the component VHD Driver. The manipulation with an unknown input leads to a access control vulnerability (File). Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:
Virtual Hard Disk Driver in Windows 10 Gold, 1511, and 1607 and Windows Server 2016 does not properly restrict access to files, which allows local users to gain privileges via a crafted application, aka "VHD Driver Elevation of Privilege Vulnerability."
The weakness was disclosed 11/08/2016 by James Forshaw with Google Project Zero as MS16-138 as confirmed bulletin (Technet). The advisory is available at technet.microsoft.com. This vulnerability is handled as CVE-2016-7225 since 09/09/2016. The exploitation is known to be easy. Local access is required to approach this attack. The successful exploitation requires a simple authentication. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
The exploit is available at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 94639 (MS16-138: Security Update for Microsoft Virtual Hard Disk Driver (3199647)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91296 (Microsoft Windows Security Update for Microsoft Virtual Hard Disk Driver (MS16-138)).
Applying the patch MS16-138 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (94639) and Exploit-DB (40764). The entries 93420, 93421 and 93423 are pretty similar.
Product
Type
Vendor
Name
Version
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: 6.1VulDB Meta Temp Score: 5.8
VulDB Base Score: 6.1
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: FileClass: Access control / File
CWE: CWE-284 / CWE-266
ATT&CK: T1068
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 94639
Nessus Name: MS16-138: Security Update for Microsoft Virtual Hard Disk Driver (3199647)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 802074
OpenVAS Name: Microsoft Virtual Hard Disk Driver Multiple Vulnerabilities (3199647)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: MS16-138
Timeline
09/09/2016 🔍11/08/2016 🔍
11/08/2016 🔍
11/08/2016 🔍
11/08/2016 🔍
11/09/2016 🔍
11/10/2016 🔍
09/30/2022 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: MS16-138
Researcher: James Forshaw
Organization: Google Project Zero
Status: Confirmed
CVE: CVE-2016-7225 (🔍)
OVAL: 🔍
SecurityTracker: 1037248
SecurityFocus: 94016 - Microsoft Windows CVE-2016-7225 Local Privilege Escalation Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍
Entry
Created: 11/09/2016 10:50Updated: 09/30/2022 09:36
Changes: 11/09/2016 10:50 (72), 05/28/2019 00:14 (16), 09/30/2022 09:36 (3)
Complete: 🔍
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