Windows Error Reporting Service Elevation of Privilege Vulnerability
CVE-2023-36874

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
11 July 2023

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 63%🦅 CISA Reported📰 News Worthy

What is CVE-2023-36874?

The Windows Error Reporting Service contains a vulnerability that can allow attackers to elevate their privileges. This weakness may enable an unauthorized user to take control of affected systems, potentially leading to further exploits. It is essential for users to apply security updates and patches provided by Microsoft to mitigate this risk. To learn more about the implications of this vulnerability, visit the official Microsoft advisory.

CISA has reported CVE-2023-36874

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2023-36874 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20048

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.6085

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.4645

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-36874
Created by Wh04m1001

CVE-2023-36874_BOF
Created by Octoberfest7

CVE-2023-36874
Created by d0rb

News Articles

favicon imageSecurelist

A patched Windows attack surface is still exploitable

In this report, we highlight the key points about a class of recently-patched elevation-of-privilege vulnerabilities affecting Microsoft Windows, and then focus on how to check if any of them have been exploited or if there have been any attempts to exploit them.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

EPSS Score

63% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 📰

    First article discovered by Securelist

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2023-36874 : Windows Error Reporting Service Elevation of Privilege Vulnerability