Microsoft Monthly Security Update (September 2023)
Last Update Date:
15 Sep 2023
Release Date:
13 Sep 2023
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RISK: High Risk
TYPE: Operating Systems - Windows OS
Microsoft has released monthly security update for their products:
| Vulnerable Product | Risk Level | Impacts | Notes |
| Browser |  Low Risk | ||
| Windows |  High Risk | Elevation of Privilege Denial of Service Information Disclosure Remote Code Execution Security Restriction Bypass | CVE-2023-36802 is being exploited in the wild. The vulnerability can be exploited to local privilege elevation vulnerability that allows attackers to gain SYSTEM privileges.
Proof of Concept exploit code is publicly available for CVE-2023-38146, impacting Windows 11. |
| Extended Security Updates (ESU) |  Medium Risk | Elevation of Privilege Information Disclosure Denial of Service | |
| Azure | Medium Risk | Elevation of Privilege Remote Code Execution | |
| Microsoft Office | High Risk | Security Restriction Bypass Information Disclosure Elevation of Privilege Spoofing Remote Code Execution | CVE-2023-36761 is being exploited in the wild. The vulnerability can be used to steal NTLM hashes when opening a document, including in the preview pane. These NTLM hashes can be cracked or used in NTLM Relay attacks to gain access to the account. |
| Developer Tools | Medium Risk | Elevation of Privilege Remote Code Execution Denial of Service | |
| Exchange Server | Medium Risk | Spoofing Remote Code Execution Information Disclosure | |
| Apps | Medium Risk | Remote Code Execution | |
| Microsoft Dynamics | Low Risk | Spoofing | |
| System Center | Medium Risk | Security Restriction Bypass |
Number of 'Extremely High Risk' product(s): 0
Number of 'High Risk' product(s): 2
Number of 'Medium Risk' product(s): 6
Number of 'Low Risk' product(s): 2
Evaluation of overall 'Risk Level': High Risk
Impact
- Denial of Service
- Elevation of Privilege
- Information Disclosure
- Remote Code Execution
- Spoofing
- Security Restriction Bypass
System / Technologies affected
- Browser
- Windows
- Extended Security Updates (ESU)
- Azure
- Microsoft Office
- Developer Tools
- Exchange Server
- Apps
- Microsoft Dynamics
- System Center
Solutions
Before installation of the software, please visit the vendor web-site for more details.
- Apply fixes issued by the vendor.
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