Microsoft Windows up to Server 2019 COM Aggregate Marshaler access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability was found in Microsoft Windows (Operating System). It has been rated as critical. This issue affects an unknown code block of the component COM Aggregate Marshaler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability.
The bug was discovered 11/13/2018. The weakness was shared 11/13/2018 by James Forshaw with Google Project Zero as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2018-8550 since 03/14/2018. Attacking locally is a requirement. The requirement for exploitation is a simple authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:
An elevation of privilege exists in Windows COM Aggregate Marshaler. An attacker who successfully exploited the vulnerability could run arbitrary code with elevated privileges.
The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 118916 (KB4467691: Windows 10 Version 1607 and Windows Server 2016 November 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 91481 (Microsoft Windows Security Update November 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 databases at Tenable (118916) and Exploit-DB (45893). The entries 126704, 126705, 126707 and 126708 are related to this item.
Product
Type
Vendor
Name
Version
- 7 SP1
- 8.1
- 10
- 10 1607
- 10 1703
- 10 1709
- 10 1803
- 10 1809
- RT 8.1
- Server 1709
- Server 1803
- Server 2008 R2 SP1
- Server 2008 SP2
- Server 2012
- Server 2012 R2
- Server 2016
- Server 2019
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: 7.5VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.8
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
Vendor Base Score (Microsoft): 7.0
Vendor Vector (Microsoft): 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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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: 🔍
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Exploiting
Class: Access controlCWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
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0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 118916
Nessus Name: KB4467691: Windows 10 Version 1607 and Windows Server 2016 November 2018 Security Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Timeline
03/14/2018 🔍11/13/2018 🔍
11/13/2018 🔍
11/13/2018 🔍
11/13/2018 🔍
11/13/2018 🔍
11/13/2018 🔍
11/14/2018 🔍
06/06/2023 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: portal.msrc.microsoft.com
Researcher: James Forshaw
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2018-8550 (🔍)
SecurityTracker: 1042139
SecurityFocus: 105805 - Microsoft Windows COM CVE-2018-8550 Local Privilege Escalation Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍
Entry
Created: 11/14/2018 08:18Updated: 06/06/2023 07:18
Changes: 11/14/2018 08:18 (87), 04/12/2020 09:13 (10), 06/06/2023 07:18 (5)
Complete: 🔍
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