Microsoft Windows up to Server 2016 Win32k Graphics access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.6 | $5k-$25k | 0.00 |
A vulnerability was found in Microsoft Windows (Operating System). It has been classified as critical. Affected is an unknown code block of the component Win32k Graphics. 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 confidentiality, integrity, and availability.
The bug was discovered 09/11/2018. The weakness was presented 09/11/2018 by Hossein Lotfi with Secunia Research as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release was coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2018-8332 since 03/14/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/08/2023). The MITRE ATT&CK project declares the attack technique as T1068. The advisory points out:
A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited this vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
The vulnerability scanner Nessus provides a plugin with the ID 117415 (KB4457140: Windows Server 2012 September 2018 Security Update), 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 110323 (Microsoft Office and Microsoft Office Services and Web Apps Security Update September 2018).
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 (117415). See 123825, 123827, 123831 and 123834 for similar entries.
Product
Type
Vendor
Name
Version
- 7 SP1
- 8.1
- 10
- 10 1607
- 10 1703
- 10 1709
- 10 1803
- RT 8.1
- Server 1709
- Server 1803
- Server 2008 R2 SP1
- Server 2008 SP2
- Server 2012
- Server 2012 R2
- Server 2016
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: 7.7VulDB Meta Temp Score: 7.6
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 8.8
Vendor Vector (Microsoft): 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
ATT&CK: T1068
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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Today | unlock | unlock | unlock | unlock |
Nessus ID: 117415
Nessus Name: KB4457140: Windows Server 2012 September 2018 Security Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
03/14/2018 🔍09/11/2018 🔍
09/11/2018 🔍
09/11/2018 🔍
09/11/2018 🔍
09/11/2018 🔍
09/12/2018 🔍
09/12/2018 🔍
05/08/2023 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: portal.msrc.microsoft.com
Researcher: Hossein Lotfi
Organization: Secunia Research
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2018-8332 (🔍)
OVAL: 🔍
SecurityTracker: 1041628
SecurityFocus: 105248 - Microsoft Windows 'Win32k.sys' Graphics CVE-2018-8332 Remote Code Execution Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍
Entry
Created: 09/12/2018 07:14Updated: 05/08/2023 09:43
Changes: 09/12/2018 07:14 (85), 03/22/2020 13:21 (7), 05/08/2023 09:43 (5)
Complete: 🔍
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